JP6058797B2 - Method for manufacturing segmented filter rods - Google Patents

Description

The present application relates to porous masses used in filters for smoking devices and related articles and methods.

The World Health Organization (WHO) provides recommendations for the reduction of certain components of tobacco smoke. See WHO Technical Report Series No. 951, “Scientific Basis for Tobacco Product Regulation”, World Health Organization (2008). There, WHO reduces certain components, such as acetaldehyde, acrolein, benzene, benzoapylene, 1,3-butadiene, and especially formaldehyde, to levels below 125% of the median value of the data set. (Same as above, Table 3.10, page 112). In view of the new international recommendations related to tobacco product regulations, new tobacco smoke filters and materials are needed that are used to produce tobacco smoke filters that can meet these regulations.

The use of carbon-equipped tobacco smoke filters to remove tobacco smoke components is generally limited to carbon-on-tow filters and carbon particles contained within the filter chamber. I came. However, the incorporation of such components into segmented filters has the technical challenge of producing high levels of dust that can contaminate other filter sections. Furthermore, such components have limited technical flexibility with respect to the incorporation of other active particles, the design of unique filter configurations, and the removal of some smoke stream components in large quantities.

The present application relates to porous masses used in filters for smoking devices and related articles and methods.

In one embodiment of the invention, the method includes:
Providing a porous mass rod comprising a plurality of active particles and binder particles bonded at a plurality of contact points;
Providing a filter rod not having the same composition as the porous mass rod;
Cutting the porous mass rod and the filter rod into a porous mass section and a filter rod section, respectively;
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least some porous mass sections and at least some filter sections;
Securing a desired abutting configuration with the wrapping paper to obtain a segmented filter rod length; and cutting the segmented filter rod length into segmented filter rods;
Including:
The forming, fixing and cutting steps are performed to produce a segmented filter rod at a speed of about 25 m / min or more.

In one embodiment of the invention, the method includes:
Providing a porous mass rod comprising a plurality of active particles and binder particles bonded at a plurality of contact points;
Providing a filter rod not having the same composition as the porous mass rod;
Cutting the porous mass rod and the filter rod into a porous mass section and a filter section, respectively:
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least some porous mass sections and at least some filter sections;
Fixing a desired abutting configuration with an adhesive so as to obtain a segmented filter rod length; and cutting the segmented filter rod length into segmented filter rods;
Including
The forming, fixing and cutting steps are performed to produce a segmented filter rod at a speed of about 25 m / min or more.

In one embodiment of the present invention, the segmented filter rod is manufactured by the following process.
Providing a plurality of porous mass sections comprising a plurality of active particles and binder particles combined at a plurality of contact points;
Providing a plurality of filter sections not having the same composition as the porous mass section;
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least one porous mass section and at least one filter section;
Fixing the desired abutment configuration with an adhesive so as to obtain a segmented filter rod length;
Cutting the length of the segmented filter rod into segmented filter rods; and cutting the segmented filter rod into segmented filters;
Including
Cutting the length of the formed, fixed and segmented filter rod is performed to produce a segmented filter rod at a speed of about 25 m / min or more.

The features and advantages of the present invention will be readily apparent to those of ordinary skill in the art by reference to the following description of the preferred embodiments.

The following drawings are included to illustrate certain aspects of the invention and should not be construed as exclusive embodiments. The subject matter disclosed herein is equivalent in numerous modifications, changes, combinations, forms and functions as will occur to those skilled in the art and will be apparent to those skilled in the art having the benefit of these disclosures. Can be modified.

FIG. 1 is a cross-sectional view of an embodiment of a tobacco including a filter section according to the present invention.

FIG. 2 is a cross-sectional view of another embodiment of a tobacco including a filter section according to the present invention.

FIG. 3 is a cross-sectional view of another embodiment of a tobacco including a filter section according to the present invention.

FIG. 4 is a cross-sectional view of a smoking device with a filter section according to the present invention.

FIG. 5 is a micrograph of a portion of an embodiment of the porous mass of the present invention.

FIG. 6 is a comparative document showing the results of an encapsulated pressure drop test of a carbon-on-toe filter having an average circumference of about 24.5 millimeters.

FIG. 7 shows the results of an encapsulated pressure drop test for a porous mass filter (including polyethylene and carbon) of the present invention having an average circumference of about 24.5 millimeters.

FIG. 8 is a comparative document showing the results of an encapsulated pressure drop test for a carbon-on-tow filter having an average circumference of about 16.9 millimeters.

FIG. 9 shows the results of an encapsulated pressure drop test for a porous mass filter (including polyethylene and carbon) of the present invention having an average circumference of about 16.9 millimeters.

FIG. 10 shows an illustration to explain the manufacturing process of a filter rod according to at least some embodiments of the present invention.

FIG. 11 is a photograph of a plurality of filter rods manufactured using at least one method of the present invention.

FIG. 12 is an illustration of at least some methods of the present invention for forming a filter according to at least some embodiments described herein.

Detailed Description of the Invention

This application relates to porous masses used in filters for smoking devices and related articles and methods.

The present invention, in some embodiments, provides a filter and a smoking device having a porous mass incorporated therein. As used herein, the term “porous mass” is bound by binder particles having active particles and thereby voids through which the smoke can travel and interact with the active particles. Refers to a mass comprising non-fibrous binder particles that form a closed structure. The porous mass described herein can advantageously reduce the concentration of at least some harmful components in a smoke stream, such as a smoke stream of tobacco.
Further, the porous mass described herein may be configured to allow use in standard tobacco production equipment, eg, a filter coupling device for producing segmented filter rods. . In some embodiments, the binding of active particles to binder particles can advantageously and significantly reduce particle contamination to other components of the filter.

The porous mass described herein further comprises a plurality of filter rod configurations and active particles to achieve a greater reduction in smoke flow components while maintaining the suction characteristics familiar to consumers. provide.

It should be noted that when the term “about” is used at the beginning of a list of numbers, “about” modifies each number in the list of numbers. It should be noted that for some numerical list ranges, some lower limits listed may be greater than some upper limits listed. One skilled in the art will recognize that the selected subset requires an upper limit selection that exceeds the selected lower limit.
I. Porous mass

In some embodiments, the porous mass described herein comprises active particles that are at least partially associated with binder particles. For example, as described in more detail in the Examples section below, FIG. 5 is a micrograph of an embodiment of a porous mass comprising active particles 50 (eg, activated carbon particles) and binder particles 52. is there. As shown, the binder particles and the active particles are joined at a plurality of contact points 54.
In some embodiments, the contact points 54 are randomly distributed throughout the porous mass and the binder particles may retain their original physical shape (or substantially retain their original shape). For example, a variation of 10% or less from the original shape (eg shape shrinkage)). While not wishing to be bound by theory, it is believed that the binder particles are not heated sufficiently to melt, but contact points form when heated to their softening temperature. Further, in some embodiments, the porous mass described herein maximizes the surface area of the active particles while minimizing the encapsulated pressure drop (described in more detail below). It is believed that it can be incorporated into a smoking device with minimal impact on the suction characteristics of the filter.

Active particles suitable for use with the porous masses described herein to improve smoke flow by removing and reducing components of the smoke flow and / or adding components to the smoke flow Any material that conforms to may be included.
It is optional to remove, reduce or add. As an example, the components listed in the following list can be selectively removed or reduced in tobacco smoke streams. This table is available from the US FDA as a draft initial list of harmful / potentially harmful ingredients in tobacco products, including tobacco smoke. Examples of smoke stream components that can be advantageously reduced or eliminated include, but are not limited to, in some embodiments:
Acetaldehyde, acetamide, acetone, acrolein, acrylamide, acrylonitrile, aflatoxin B-1, 4-aminobiphenyl, 1-aminonaphthalene, 2-aminonaphthalene, ammonia, ammonium salt, anabasine, anatabine, 0-anisidine, arsenic, A-α -C, benz [a] anthracene, benz [b] fluoroanthene (benz [b] fluoroanthene), benzo [j] is asanthrylene, benz [k] fluoroanthene, benzene, benzo ( b), furan, benzo [a] pyrene, benzo [c] phenanthrene, beryllium, 1,3-butadiene, butyraldehyde, cadmium, caffeic acid, carbon monoxide, catechol, chlorinated dioxin / furan, chromium, chrysene, cobalt , Coumarin, cresol, crotonaldehyde, cyclopenta [c, d] pyrene, Benzo (a, h) acridine, dibenz (a, j) acridine, dibenz [a, h] anthracene, dibenzo (c, g) carbazole, dibenzo [a, e] pyrene, dibenzo [a, h] pyrene, dibenzo [ a, i] pyrene, dibenzo [a, l] pyrene, 2,6-dimethylaniline, ethyl carbamate (urethane), ethylbenzene, ethylene oxide, eugenol, formaldehyde, furan, glu-P-1, glu-P-2, hydrazine , Hydrogen cyanide, hydroquinone, indeno [1,2,3-cd] pyrene, IQ, isoprene, lead, MeA-α-C, mercury, methyl ethyl ketone, 5-methylchrysene, 4- (methylnitrosamino) ) -1- (3-pyridyl) -1-butanone (NNK), 4- (methylnitrosamino) -1- (3-pyridyl) -1-butanol (NNAL), naphthalene, nickel, nicotinate, nitrate , Nitric oxide, nitric oxide, nitrite , Nitrobenzene, nitromethane, 2-nitropropane, N-nitrosoanabasine (NAB), N-nitrosodiethanolamine (NDELA), N-nitrosodiethylamine, N-nitrosodimethylamine (NDMA), N-nitrosoethyl Methylamine (N-nitrosoethylmethylamine), N-nitrosomorpholine (NMOR), N-nitrosonornicotine (NNN), N-nitrosopiperidine (NPIP), N-nitrosopyrrolidine (NPYR), N-nitrososarcosine (N-nitrososarcosine) (NSAR), phenol, PhlP, polonium-210 (radioisotope), propionaldehyde, propylene oxide, pyridine, quinoline, resorcinol, selenium, styrene, tar, 2-toluidine, toluene, Trp-P-1 , Trp-P-2, uranium 235 (radioisotope), uranium 238 (radioisotope), vinyl acetate, chloride Cycloalkenyl, and any combination thereof.

In some embodiments, active particles suitable for use with the porous mass described herein may include activated carbon particles, such as activated carbon (or activated charcoal or activated coal). Activated carbon, in some embodiments, has low activity (about 50% to about 75% carbon tetrachloride (CCL ₄ ) adsorption), high activity (about 75% to about 95% carbon tetrachloride (CCL) ₄ ) Adsorption), or a mixture thereof.
In some embodiments, the activated carbon particles may be nanoscale carbon particles, such as any number of wall carbon nanotubes, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes and fullerene aggregates, and several layers. Graphene containing graphene and graphene oxide can be used.

Further representative examples of active particles suitable for use with the porous mass described herein include, but are not limited to, the following. Ion exchange resin, desiccant, silicate, molecular sieve, silica gel, activated alumina, zeolite, ion exchange resin (eg, polymer having a main chain (eg, styrene-divinyl benzene (DVB) copolymer, acrylate) , Methacrylates, phenol formaldehyde condensates, and epichlorohydrin amine condensates) and multiple charged functional groups attached to the polymer backbone), perlite, sepiolite, fuller earth, magnesium silicate, metal oxides (eg, iron oxide and about Iron oxide nanoparticles such as 12nm Fe ₃ O ₄ ), nanoparticles (eg, metal nanoparticles such as gold and silver; metal oxide nanoparticles such as alumina; magnetic, paramagnetic and superparamagnetic such as gadolinium oxide) Oxidation of various crystal structures such as magnetic nanoparticles, hematite and magnetite , Gad - end full Len such as nanotubes and Gd @ C _60; core - shell and is such onion of gold and silver nanoshells (onionated) nanoparticles were Onion reduction (onionated) iron oxide, and the material Other nanoparticles or microparticles having any outer shell of and any combination thereof In some embodiments, any combination of the aforementioned active particles is preferred, including activated carbon particles.

As used herein, nanoparticles include nanorods, nanospheres, nanorises, nanowires, nanostars (such as nanotripods and nanotetrapods), hollow nanostructures, two or more It should be noted that it includes hybrid nanostructures in which the nanoparticles are connected together and non-nanoparticles with nanocoating or nanothick walls. In addition, it should be noted that nanoparticles include functionalized derivatives of nanoparticles, where functionalized nanoparticles are covalently and / or non-covalently functionalized nanoparticles, for example, π -Stacking, physisorption, ion association, van der Waals association, etc., but are not limited to these. Suitable functional groups include, but are not limited to, small portions including: Amines (primary, secondary, or tertiary), amides, carboxylic acids, aldehydes, ketones, ethers, esters, peroxides, silyls, organosilanes, hydrocarbons, aromatic hydrocarbons, and any combination thereof; Polymers; structures containing ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, chelating agents such as triglycollamic acid, and pyrrole rings and any combinations thereof. The functional group, in some embodiments, can facilitate removal of the smoke component and / or facilitate incorporation of the nanoparticles into the porous mass.

In some embodiments, the active particles are a combination of various active particles. In some embodiments, the porous mass may include a variety of active particles.

In some embodiments, the porous mass described herein may be effective in reducing or removing smoke flow components (eg, those described herein). In some embodiments, the porous mass described herein may be used to reduce the delivery of specific tobacco smoke components targeted by WHO to users of smoking devices. For example, a porous mass in which activated carbon is used as the active particle can be used to reduce the delivery of certain tobacco smoke components to a level below WHO recommendations. (See Table 13 below).

In some embodiments, the porous mass described herein comprising activated carbon, acetaldehyde in the smoke stream, from about 3.0% to about 6.5% per mm length of the porous mass;
Acrolein in the smoke stream from about 7.5% to about 12% per mm length of the porous mass;
About 5.5% to about 8.0% of benzene in the smoke stream per mm length of the porous mass;
About 9.0% to about 21.0% of benzo [a] pyrene in the smoke stream per mm length of the porous mass;
1,3-butadiene in the smoke stream from about 1.5% to about 3.5% per mm length of the porous mass;
About 9.0% to about 11% of formaldehyde in the smoke stream per mm length of the porous mass;
Can be reduced at a rate of.

In some embodiments, the porous mass described herein comprising an ion exchange resin can reduce the delivery of certain tobacco smoke components below the recommended level of WHO. In some embodiments, the porous mass described herein comprising an ion exchange resin comprises acetaldehyde in the smoke stream from about 5.0% to about 7.0% per mm length of the porous mass;
Acrolein in the smoke stream from about 4.0% to about 6.5% per mm length of the porous mass;
Formaldehyde in the smoke stream can be reduced at a rate of about 9.0% to about 11.0% per mm length of the porous mass.

In one embodiment, active particles suitable for use with the porous mass described herein are particles having at least one size of less than about 1 nanometer, such as graphene, up to about 5000 microns. , Having particles ranging up to at least one size. The active particles, in some embodiments, have a lower limit of about 0.1 nanometer, 0.5 nanometer, 1 nanometer, 10 nanometer, 100 nanometer, 500 nanometer, 1 micron, 5 micron, 10 micron, 50 micron. 100 microns, 150 microns, 200 microns, or 250 microns, the upper limit is about 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 May have a diameter of at least one size in the range of micron, 100 microns, 50 microns, 10 microns, or 500 nanometers, in which case the diameter of at least one size is from any lower limit to any upper limit Any subset in between may be included. In some embodiments, the active particles may be a mixture of various particle sizes.

Binder particles suitable for use with the porous mass described herein may be any suitable thermoplastic binder particles. In some embodiments, binder particles suitable for use with the porous mass described herein may be substantially less fluid at their melting temperature. This means that when heated to its melting temperature, the material exhibits little or no polymer flow. Materials satisfying these criteria include, but are not limited to: Examples include ultra high molecular weight polyethylene (UHMWPE), high molecular weight polyethylene (VHMWPE), high molecular weight polyethylene (HMWPE), and combinations thereof. In one embodiment, the binder particles have a melt flow index (MFI, ASTM D1238) of about 3.5 g / 10 min or less at 190 ° C. and 15 kg (or about 0-3.5 g / 10 min at 190 ° C. and 15 kg). have. In other embodiments, the binder particles have a melt flow index (MFI) of about 2.0 g / 10 min or less at 190 ° C. and 15 kg (or about 0-2.0 g / 10 min at 190 ° C. and 15 kg). Examples of low melt flow index binders can include, but are not limited to: UHMWPE with virtually no polymer flow, UHMWPE with an MFI of about 0-1.0 at 190 ° C and 15 kg, VHMWPE with an MFI of about 1.0-2.0 g / 10 min at 190 ° C and 15 kg, at 190 ° C and 15 kg HMWPE with an MFI of about 2.0-3.5 g / 10 min, and any combination thereof can be raised. In some embodiments, it may be preferable to use a mixture of binder particles having different molecular weights and / or different melt flow indexes.

In terms of molecular weight, UHMWPE includes a polyethylene composition having a weight average molecular weight of at least about 3 × 10 ⁶ grams / mole. In some embodiments, the molecular weight of UHMWPE is from a lower limit of about 3 × 10 ⁶ grams / mole or 6 × 10 ⁶ grams / mole to about 30 × 10 ⁶ grams / mole, 20 × 10 ⁶ grams / mole or 10 × It may range from an upper limit of 10 ⁶ grams / mole or 6 × 10 ⁶ grams / mole, and its molecular weight ranges from any lower limit to any upper limit, including any subset in between Also good. As for the molecular weight, VHMWPE includes polyethylene composition having a weight average molecular weight greater than about 3 x 10 ⁶ grams / mole and less than about 1 × 10 ⁶ g / mol. In some embodiments, the high molecular weight polyethylene composition has a molecular weight between about 2 × 10 ⁶ grams / mole and less than about 3 × 10 ⁶ grams / mole. With respect to molecular weight, HMWPE includes polyethylene compositions having a weight average molecular weight of at least about 3 × 10 ⁵ grams / mole to about 1 × 10 ⁶ grams / mole. As used herein, the molecular weight referred to herein is determined by the Margolies equation (“Margolies molecular weight”).

Examples of commercially available polyethylene products include, but are not limited to: GUR (R) UHMWPE products (available from Ticona Polymers LLC, such as GUR (R) 2000 series (eg 2105, 2212, 2122-5, 2126), GUR4000 (R) series (eg 4120, 4130, 4150, 4170, 4012, 4122-5, 4022-6, 4050-3 / 4150-3), GUR8000 (R) series (eg 8110, 8020), GURX (R) series (eg X143, X184, X168, X172, X192) In some embodiments, any combination of the aforementioned commercially available polyethylene products may be suitable.

In some embodiments, polyethylene suitable for use in combination with the binders described herein is about 5 deciliters per gram, for example, as described in US Patent Application Publication No. 2008/0090081. May have an intrinsic viscosity in the range of from about 30 deciliters per gram and a crystallinity of about 80% or more. All of which are incorporated herein by reference. In some embodiments, polyethylene suitable for use in combination with the binders described herein is as described in US Patent Application No. 61 / 330,535, filed May 3, 2010. May have a molecular weight ranging from about 300,000 grams / mole to about 2,000,000 grams / mole as determined by ASTM D-4020, with an average particle size (D ₅₀ ) of about 300 μm to about 1500 μm, and a bulk density May be from about 0.25 g / ml to about 0.5 g / ml.

Binder particles suitable for use with the porous mass described herein may be of any shape. Such shapes include spherical, hyperion-like, star-like, chrondular or interplanetary dust-like, granular, potato, popcorn, irregular, any hybrid thereof, and any combination thereof. However, it is not limited to these. In preferred embodiments, binder particles suitable for use in the present invention are non-fibrous. In some embodiments, the binder particles are in the form of powder, pellets, or microparticles. In some embodiments, the binder particles are a combination of various binder particles having different shapes.

In some embodiments, binder particles suitable for use with the porous mass described herein have a diameter with at least one dimension within the following range. The lower limit is about 0.1 nanometer, 0.5 nanometer, 1 nanometer, 10 nanometer, 100 nanometer, 500 nanometer, 1 micron, 5 micron, 10 micron, 50 micron, 100 micron, 150 micron, 200 micron, or The upper limit is about 5000 microns, 2000 microns, 1000 microns, 900 microns, 700 microns, 500 microns, 400 microns, 300 microns, 250 microns, 200 microns, 150 microns, 100 microns, 50 microns, 10 microns, The diameter of 500 nanometers and at least one size ranges from any lower limit to any upper limit and may encompass any subset in between. In some embodiments, the binder particles may be a mixture of multiple particle sizes.

In some embodiments, binder particles suitable for use with the porous mass described herein can have a bulk density in the range of about 0.10 grams / cm ³ to about 0.55 grams / cm ^3. . In other embodiments, the bulk density may range from about 0.17 grams / cm ³ to about 0.50 grams / cm ³ . In yet other embodiments, the bulk density may range from about 0.20 grams / cm ³ to about 0.47 grams / cm ³ .

In addition to the binder particles described above, in some embodiments, other conventional thermoplastic resins can be used as binder particles for use with the porous mass described herein. Such thermoplastic resins include, but are not limited to: Polyolefin, polyester, polyamide (or nylon), polyacrylic acid, polystyrene, polyvinyl, polytetrafluoroethylene (PTFE), polyetheretherketone (PEEK), any copolymer thereof, any derivative thereof, and them Any combination of can be raised.
Non-fiber plasticized cellulose derivatives may also be suitable for use as binder particles in the present invention. Examples of suitable polyolefins include, but are not limited to: Examples thereof include polyethylene, polypropylene, polybutylene, polymethylpentene, and the like, arbitrary copolymers thereof, arbitrary derivatives thereof, and arbitrary combinations thereof. Examples of suitable polyethylene further include, but are not limited to: Low density polyethylene, linear low density polyethylene, high density polyethylene, and the like, and any copolymer thereof, any derivative thereof, and any combination thereof may be mentioned. Examples of suitable polyesters include, but are not limited to: Examples thereof include polyethylene terephthalate, polybutylene terephthalate, polycyclohexylene dimethylene terephthalate, polytrimethylene terephthalate and the like, arbitrary copolymers thereof, arbitrary derivatives thereof, and arbitrary combinations thereof. Examples of suitable polyacrylic acids include, but are not limited to: These arbitrary copolymers, such as polymethylmethacrylate, these arbitrary derivatives, and these arbitrary combinations are mentioned. Examples of suitable polystyrene include, but are not limited to: Examples include polystyrene, acrylonitrile-butadiene-styrene, styrene-acrylonitrile, styrene-butadiene, styrene-maleic anhydride, and the like, arbitrary copolymers thereof, arbitrary derivatives thereof, and arbitrary combinations thereof. Examples of suitable polyvinyls include, but are not limited to: Examples thereof include ethylene vinyl acetate, ethylene vinyl alcohol, polyvinyl chloride and the like, arbitrary copolymers thereof, arbitrary derivatives thereof, and arbitrary combinations thereof. Examples of suitable cellulose derivatives include, but are not limited to: Examples thereof include cellulose acetate, cellulose acetate butyrate, plasticized cellulose, cellulose propionate, and ethyl cellulose, and any copolymers thereof, any derivatives thereof, and any combination thereof. In some embodiments, the binder particles may include any copolymer, any derivative, any combination of the exemplary binders described herein, and the like.

The active particles and binder particles may be included in the porous mass described herein in any weight ratio. In some embodiments, the weight ratio of active particles to binder particles is from a lower limit of about 1:99, 10:90, 25:75, 40:60, or 50:50 to an upper limit of about 90:10. , 75:25, 60:40, or 50:50, and the weight ratio can range from any of these lower limits to any upper limit, and between Any subset of may be included.

In some embodiments, the porous mass described herein can be characterized by properties such as void volume, encapsulated pressure drop, and any combination thereof.

In some embodiments, the porous mass described herein has a void volume of about 40%, 50%, or 60% of its lower limit to about 90%, 85%, 80%, or 75% of its upper limit. It may have a range value, and the void volume ranges from any lower limit to any upper limit described above, and may include any subset in between.

Without being bound to any particular theory, in order to determine the void volume, the results of the test are believed to indicate that the final density of the mixture was determined almost entirely by the active particles. Therefore, the space occupied by the binder particles was not considered in this calculation. Therefore, void volume is calculated in this context based on the remaining space after considering active particles.
To determine the void volume, first the upper and lower diameters based on the mesh size are averaged over the active particles, and then the volume (assuming a sphere based on the averaged diameter) is the density of the active material. Calculated using. The percent void volume is then calculated as follows:

Void volume (%) = 1-
[(Porous mass volume, cm ³ ) − (weight of active particles, g) / (density of active particles g / cm ³ )] * 100
(Porous lump volume, cm ³ )

As used herein, the term “encapsulated pressure drop” refers to the static pressure difference between the two ends of a sample, where the air flow through the sample is steady and the air flow The volumetric flow rate is 17.5 ml / sec at the outlet and the sample is completely encapsulated in the measuring device so that no air can pass through the package. The EPD shown here is measured under the recommended method No. 41 dated June 2007 by CORESTA ("Center for Scientific Research Cooperation on Tobacco"). In other embodiments, the porous mass of the present invention can have an EPD ranging from about 0.10 to about 10 mm water per mm length of the porous mass. In some embodiments, the porous mass of the present invention has an EPD of about 2 to about 7 mm water (or no greater than 7 mm water per 1 mm length of the porous mass) per 1 mm length of the porous mass. Can have.

In some embodiments, the porous mass described in the specification has a lower limit of water of about 0.10 mm, 0.5 mm, 1 mm, or 5 mm per mm length of the porous mass, and 1 of the porous mass. Can have an encapsulated pressure drop (EPD) of up to about 25 mm, 15 mm, 10 mm or 5 mm water per mm length, EPD ranges from any lower limit to any upper limit And any subset in between may be included.

In some embodiments, the porous mass of the present invention has an active particle loading of at least about 1 mg / mm, 2 mg / mm, 3 mg / mm, 4 mg / mm, 5 mg / mm, 6 mg / mm, 7 mg / mm, 8 mg / mm, 9 mg / mm, 10 mg / mm, 11 mg / mm, 12 mg / mm, 13 mg / mm, 14 mg / mm, 15 mg / mm, 16 mg / mm, 17 mg / mm, 18 mg / mm, 19 mg / mm, 20 mg / mm, 21 mg / mm, 22 mg / mm, 23 mg / mm, 24 mg / mm, or 25 mg / mm It may be combined with the EPD described below per 1 mm. EPD of water less than 20 mm per mm of porous mass, also less than 19 mm, less than 18 mm, less than 17 mm, less than 16 mm, less than 15 mm, less than 14 mm, less than 13 mm, less than 12 mm, less than 11 mm <10 mm, <9 mm, <8 mm, <7 mm, <6 mm, <5 mm, <4 mm, <3 mm, <2 mm, or <1 mm.

As a non-limiting example, in some embodiments, the porous mass can have an active particle loading of at least about 1 mg / mm and an EPD of about 20 mm of water per mm of the porous mass. In other embodiments, the porous mass can have an active particle loading of at least about 1 mg / mm and an EPD of less than about 20 mm of water per mm of the porous mass. In this case, the porous mass is not carbon. In other embodiments, the porous mass can have active particles comprising carbon with a load of at least 6 mg / mm combined with an EPD of less than about 10 mm of water per mm of the porous mass.

In some embodiments, the matrix material and / or porous mass can include active particles, binder particles, and additives.
In some embodiments, the matrix material or porous mass has an additive lower limit of about 0.001 wt%, 0.01 wt%, 0.05 wt%, 0.1 wt%, 1 wt% of the matrix material or porous mass. , 5 wt%, or 10 wt% up to about 25 wt%, 15 wt%, 10 wt%, 5 wt%, or 1 wt% of the upper limit matrix material or porous mass Good. The amount of additive ranges from any lower limit to any upper limit, and can include any subset in between. It should be noted that in the porous mass referred to herein, the length of each of the plurality of porous masses includes a porous mass and a porous mass slice (with or without packaging).

Suitable additives may include, but are not limited to: active compound,
Ionic resins, zeolites, nanoparticles, ceramic particles, glass beads, softeners, plasticizers, pigments, dyes, flavors, fragrances, controlled release vesicles, adhesives, tackifiers, surface modifiers, vitamins, Oxides, biocides, antifungal agents, antibacterial agents, antistatic agents, flame retardants, degradation agents, microcapsules, and any combination thereof.

Suitable active compounds may be, but are not limited to, the following compounds and / or molecules suitable for removing components from the smoke stream: malic acid, potassium carbonate, citric acid, tartaric acid, lactic acid, ascorbic acid, Polyethyleneimine, cyclodextrin, sodium hydroxide, sulfamic acid, sodium sulfamate, polyvinyl acetate, carboxylated acrylate, and any combination thereof. Note that active particles can be considered active compounds and vice versa. As a non-limiting example, fullerenes and some carbon nanotubes can be considered particles and molecules.

Suitable ionic resins include, but are not limited to:
A polymer having a styrene-divinylbenzene (DVB) copolymer backbone, an acrylate, a methacrylate, a phenol formaldehyde condensate, an epichlorohydrin amine condensate, etc., and any combination thereof; a plurality of charged functional groups attached to the polymer backbone; Any combination.

Zeolites may include crystalline aluminosilicates with pores, such as channels, or cavities of uniform molecular size dimensions. Zeolites may include natural and synthetic materials. Suitable zeolites include, but are not limited to:
Zeolite BETA (NA ₇ (Al ₇ Si ₅₇ O ₁₂₈ ) tetragonal), zeolite ZSM-5 (n <27 (Na _n (Al _n Si _96-n O ₁₉₂ ) 16H ₂ O), zeolite A, zeolite X, zeolite Y, zeolite KG, zeolite ZK-5, zeolite ZK-4, mesoporous silicate, SBA-15, MCM-41, MCM48 modified with 3-aminopropylsilyl group, aluminophosphate, mesoporous aluminosilicate, etc. Related porous materials (such as mixed oxide gels), or any combination thereof.

Suitable nanoparticles include, but are not limited to:
Nanoscale carbon particles such as carbon nanotubes of any number of walls, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes and fullerene aggregates, and graphenes containing few layers of graphene and graphene oxide; metal nanos such as gold and silver Particles; Metal oxide nanoparticles such as alumina, silica, titania; Superparamagnetic nanoparticles such as magnetic, paramagnetic, and gadolinium oxides; Hematite, magnetite, various crystals of iron oxide such as about 12 nm Fe ₃ O ₄ Structures, gado-nanotubes, and core-shells such as endofullerenes and gold and silver nanoshells such as Gd @ C ₆₀ , onionated nanoparticles, onionized iron oxide, and optional Any combination of other nanoparticles or microparticles with an outer shell of said material and those described above (including activated carbon) Align. Nanoparticles are nanorods, nanospheres, nanorises, nanowires, nanostars (like nanotripods and nanotetrapods), hollow nanostructures, two or more nanoparticles combined as one It should be noted that non-nanoparticles with hybrid nanostructures and nanocoating or nanothick walls may also be included. Nanoparticles are covalently and / or non-covalently functionalized nanoparticles include functionalized derivatives of nanoparticles, including, for example, π-stacking, physisorption, ionic association, van der Waals association, etc. However, it should be noted that the present invention is not limited to these. Suitable functional groups include, but are not limited to, small portions including:
Amines (primary, secondary, or tertiary), amides, carboxylic acids, aldehydes, ketones, ethers, esters, peroxides, silyls, organosilanes, hydrocarbons, aromatic hydrocarbons, and any combination thereof; Polymers; chelating agents such as ethylenediaminetetraacetic acid, diethylenetriaminepentaacetic acid, triglycolamic acid; and structures containing a pyrrole ring; and any combination thereof. The functional group can facilitate removal of the smoke component and / or facilitate incorporation of the nanoparticles into the porous mass.

Suitable ceramic particles include, but are not limited to, oxides (eg, silica, titania, alumina, beryllia, ceria, and zirconia), non-oxides (eg, carbides, borides, nitrides, and silicides), Including those composites, or any combination thereof. The ceramic particles may be crystalline, amorphous, or semi-crystalline.

Pigment as used herein refers to compounds and / or particles that impart color and are incorporated throughout the matrix material and / or its components.
Suitable pigments include, but are not limited to, titanium dioxide, silicon dioxide, tartrazine, E102, phthalocyanine blue, phthalocyanine green, quinacridone, perylene tetracarboxylic acid diimide, dioxazine, perinone disazo pigment, anthraquinone pigment, carbon black, titanium dioxide , Metal powder, iron oxide, ultramarine, or any combination thereof.

As used herein, a dye refers to a surface treatment compound and / or particle that imparts color. Suitable dyes include, but are not limited to, liquid and / or particulate CARTASOL® dyes (cationic dyes available from Clariant Services) (eg, CARTASOL® Brilliant Yellow K-6G solution, CARTASOL (R) Yellow K-4GL solution, CARTASOL (R) Yellow K-GL solution, CARTASOL (R) Orange K-3GL solution, CARTASOL (R) Scarlet K-2GL solution, CARTASOL (R) Red K-3BN solution, CARTASOL (R) Blue K-5R Liquid, CARTASOL (R) Blue K-RL Liquid, CARTASOL (R) Turquoise K-RL Liquid / Granule, CARTASOL (R) Brown K-BL Liquid), FASTUSOL (R) Dye (from BASF) Available auxiliary color groups) (eg yellow 3GL, Fastusol C blue 74L).

Suitable flavoring agents may be any flavoring suitable for use in smoking device filters, including those that impart a taste and / or flavor to the smoke stream. Without being limited thereto, suitable flavorings may include organic materials (or natural flavor particles), carriers for natural flavors, carriers for artificial flavors, and any combination thereof. Organic materials (or natural flavor particles) include tobacco, cloves (eg, powdered cloves and clove flowers), cocoa, and the like. Natural and artificial flavors include, but are not limited to, menthol, cloves, cherries, chocolate, cardamom, orange, mint, mango, vanilla, cinnamon, tobacco, and the like. Such flavorings can be provided by menthol, anethole (licorice), anisole, limonene (citrus), eugenol (clove), etc., and any combination thereof. In some embodiments, two or more flavorings can be used, including any combination of flavorings provided herein. These flavorings can be placed in the tobacco column or filter section. The amount included depends on the desired flavor in the smoke, taking into account all filter sections, the length of the smoking device, the type of smoking device, the diameter of the smoking device and other factors known to those skilled in the art. Depending on the level.

While not limited thereto, suitable aromas include the following.
Spices, spice extracts, herbal extracts, essential oils, scented salts, volatile organic compounds, volatile small molecules, methyl formate, methyl acetate, methyl butyrate, ethyl butyrate, ethyl butyrate, isoamyl acetate, pentyl butyrate, pentylpentanoic acid, Octyl acetate, myrcene, geraniol, nerol, citral, citronellal, citronellol, linalool, nerolidol, limonene, camphor, terpineol, alpha-ionone, thujone, benzaldehyde, eugenol, cinnamaldehyde, ethylmaltol, vanilla, anisole, annetole , Estragole, Timor, Furaneol, Methanol, Rosemary, Lavender, Citrus, Freesia, Apricot Flower, Green Plant, Peach, Jasmine, Rosewood, Pine Thyme, oak moss, musk, vetiver, myrrh, blackcurrant, bergamot, grapefruit, acacia, passiflora, sandalwood, mandarin, neroli, violet leaf, gardenia, red fruit, ylang ylang, acacia farnesiana, Mimosa, tonka beans, wood, ambergris, narcissus, hyacinth, narcissus flowers, blackcurrant bud, iris, raspberry, lily of the valley, cedarwood, neroli, bergamot, strawberry, carnation, oregano, honey, civet, heliotrope, caramel, coumarin , Patchouli, dewberry, heronial, hyacinth, cardamom, coriander, pimentberry, lovedanum, kathy, aldehyde, orchid, amber, benzoin, oris, chi Tuberose, palmarosa, cinnamon, nutmeg, moss, egonoki, pineapple, bergamot, digitalis, tulip, fuji, clematis, gum, resin, peach, plum, castrium, geranium, violet, jonquil, spicy carnation, galvanum, Hyacinth, petit gren, hyacinth, honeysuckle, pepper, raspberry, benzoin, mango, coconut, rose hesperides, castrium, cinnamon, mousse de nu, nectarine, mint, anise, cinnamon, oris, apricot, plumeria, marigold, rose oil, narcissus, true Balsam rose, frankincense, amber, orange blossom, bourbon vetiver, opopanax, white musk, papaya, Sugar confectionery, jackfruit, honeydew, lotus flower, muguet, mulberry, absinthe, ginger, juniper berry, spice bush, peony, violet, lemon, lime, hibiscus, white lamb, basil, lavender, aromatic ( balsamics), fo-ti-thien, beetle, karo karunde, white orchid, calla lily, white rose, rhubrum lily, manjugiku, ambergris, ivy, grass, para rubber tree, spearmint, clary sage, boxwood, Grapes, brimbelle, lotus, cyclamen, orchid, glycine, tiare flower, ginger lily, green hornbill, passion flower, blue rose, bay ram, cathye, african mandarin, anatolian rose, Auvergne daffodil, british broom, british broom Chocolate, Bulgarian Rose, Chinese Patchouli, Chinese Gardenia, Calabria Mandarin, Comoros Tuberose, Ceylon Cardamom, Caribbean Passion Fruit, Damascena Rose, Paraguargia Peach, White Madonna Lily, Egyptian Jasmine, Egyptian Marigold, Ethiopian Civet, Farnesian cassie, Florence Iris, French Jasmine, French John Kill, French Hyacinth, Guinea Orange, Guyana wacapua, Grasse Glen, Grasse Rose, Grasse Bellows, Haiti Vetiver, Hawaiian Pineapple, Israel Basil, Indian Sandalwood, Indian Ocean Vanilla, Italian Bergamot, Italian Iris, Jamaican Pepper, Mei Brazil Flowers, Sicilian lime, Reunion Island vetiver, Turkish rose, Thai benzoin, Tunisian orange flower, Yugoslavia oak moss, Virginia cedarwood, Achillea millefolium, West Indian rosewood and any combination thereof.

Suitable tackifiers include methylcellulose, ethylcellulose, hydroxyethylcellulose, carboxymethylcellulose, carboxyethylcellulose, water-soluble cellulose acetate, amides, diamines, polyesters, polycarbonates, silyl-modified polyamide compounds, polycarbamates, urethanes, natural resins , Shellac, acrylic acid polymer, 2-ethylhexyl acrylate, acrylic acid ester polymer, acrylic acid derivative polymer, acrylic acid homopolymer, anacrylic acid ester homopolymer, poly (methyl acrylate), poly (butyl acrylate), poly ( 2-ethylhexyl acrylate), acrylate copolymer, methacrylic acid derivative polymer, methacrylic acid homopolymer, Luric acid ester homopolymer, poly (methyl methacrylate), poly (butyl methacrylate), poly (2-ethylhexyl methacrylate), acrylamide-methyl-propane sulfonate polymer, acrylamide-methyl-propane sulfonic acid derivative polymer, acrylamide-methyl-propane sulfonate Copolymer, acrylic acid / acrylamide-methyl-propanesulfonic acid copolymer, benzylcoco di- (hydroxyethyl) quaternary amine, PT-amyl-phenol and formaldehyde condensate, dialkylaminoalkyl (meth) acrylate, acrylamide, N- (dialkylaminoalkyl) acrylamide, methacrylamide, hydroxyalkyl (meth) acrylate, methacrylic acid, acrylic acid, hydroxyethyl acrylate DOO, etc., any derivatives thereof, and can include any combination thereof, but is not limited thereto.

Suitable vitamins can include, but are not limited to, vitamin A, vitamin B1, vitamin B2, vitamin C, vitamin D, vitamin E, or any combination thereof.

Suitable antibacterial agents include antibacterial metal ions, chlorhexidine, chlorhexidine salts, triclosan, polymoxin, tetracycline, aminoglycosides (eg gentamicin), rifampicin, bacitracin, erythromycin, neomycin, chloramphenicol, miconazole, quinolone, Penicillin, nonoxynol 9, fusidic acid, cephalosporin, mupirocin, metronidazoreal cecropin (metronidazole secropin), protegrin, bacteriolcin, defensin, nitrofurazone, mafenide, acyclovir, vancmycin, clindamycin, Lincomycin, sulfonamide, norfloxacin, pefloxacin, nalidizic acid, oxalic acid, enoxacinic acid, sip Lofloxacin, polyhexamethylene biguanide (PHMB), PHMB derivatives (eg biodegradable biguanides such as polyethylene hexaniethylene biguanide (PEHMB)), chlorlorhexidine gluconic acid, chlorohexidine hydrochloride , Ethylenediaminetetraacetic acid (EDTA), EDTA derivatives (eg, disodium EDTA or tetrasodium EDTA), and the like, and any combination thereof, but are not limited thereto.

The antistatic agent can include any suitable anionic, cationic, amphoteric or nonionic antistatic agent. Anionic antistatic agents can usually include, but are not limited to, alkali metal sulfates, alkali phosphates, alcohol phosphate esters, ethoxylated alcohol phosphate esters, or any combination thereof. is not. Examples include, but are not limited to, alkali neutralized phosphate esters (eg, available from TRYFAC® 5559 or TRYFRAC® 5576, Henkel Corporation, Mouldin, SC). Is not to be done. Cationic ionic antistatic agents can include, but are not limited to, quaternary ammonium salts and imidazolines that usually have a positive charge. Examples of non-ionic materials include poly (oxyalkylene) derivatives, eg, ethoxylated fatty acids such as EMEREST® 2650 (ethoxylated fatty acids available from Henkel Corporation, Mordin, SC), TRYCOL ( Ethoxylated fatty alcohols such as R) 5964 (ethoxylated lauryl alcohol available from Henkel, Mordin, SC), and ethoxylated fatty amines such as TRYMEEN® 6606 (Henkel Corporation, Moldin, South Ethoxylated tallow amines available from Carolina), alkanolamides such as EMID® 6545 (olein diethanolamine available from Henkel Corporation, Mordin, SC) or any combination thereof. Anionic and cationic materials can be viewed as more effective antistatic agents.

As used herein, “microcapsule” refers to porous microparticles (spherical or otherwise) having outer surface pores and having a diameter of less than about 1 micron to about 1000 microns. In some embodiments, the microcapsules are described herein if these additives are sized appropriately to fit the contents of the microcapsules and can maintain the operability of the microcapsules. Can be included (alone or in combination). Microcapsules suitable for use in the present invention may be formed by any suitable technique thereof, which includes the United States entitled “Cellulose Ester Fine Particles and Process for Producing the Same”. Examples include, but are not limited to, those described in US Pat. No. 5,064,949 and those described in US Pat. No. 5,047,180 entitled “Method of Producing Cellulose Ester Fine Particles”. Both patents are incorporated herein by reference. Microcapsules suitable for use in the present invention may be formed of any suitable material, such as gelatin, cellulose, modified cellulose, methylcellulose, hydroxypropylmethylcellulose, chlorophyllin, polyvinyl alcohol, polyvinylpyrrolidone, etc., or It includes, but is not limited to, any combination thereof.

In some embodiments, the length of the porous mass described herein is from its lower limit of about 2 mm, 3 mm, 5 mm, 10 mm, 15 mm, 20 mm, 25 mm, or 30 mm, The upper limit ranges from about 150 mm, 100 mm, 50 mm, 25 mm, 15 mm, or 10 mm, and its length can be any range from any lower limit to any upper limit. , And any subset in between.

The porous mass has any physical shape, and in some embodiments, for example, spirals, triangles, disk shapes, squares, rectangles, cylinders, and hybrid shapes thereof. In some embodiments, the porous mass may be machined to reduce weight, among other things, and if desired, for example, by drilling a portion of the porous mass. In one embodiment, the porous mass may have a specific shape to fit within the tobacco holder or pipe to allow the consumer to pass smoke through the filter. When describing the shape of the porous mass of this specification, the shape may be referred to by the diameter or outer circumference of the cross section of the cylinder (the outer circumference is the circumference of a circle). However, unless stated otherwise, the term “circumference” generally refers to the perimeter of a cross section of any shape, including circular and polygonal cross sections.

The outer perimeter of the porous mass described in this specification is the lower limit of about 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, 10 mm, 11 mm, 12 mm, 13 mm, 14 mm, 15 mm, 16 mm, 17 mm, 18 mm, 19 mm, 20 mm, 21 mm, 22 mm, 23 mm, 24 mm, 25 mm, or 26 mm to the upper limit of about 60 mm, 50 mm, 40 mm, 30 mm, 20 mm, 29 mm, 28 mm, 27 mm, 26 mm, 25 mm, 24 mm, 23 mm, 22 mm, 21 mm, 20 mm, 19 mm, 18 mm, 17 mm, or up to 16 mm The perimeter can be any range from any lower limit to any upper limit, and can encompass any subset in between.

In some embodiments, the porous mass may have at least one paper around it. Unless stated otherwise, the embodiments described herein relating to porous masses relate to packaged porous masses. Examples of paper that are arranged with respect to the porous mass described herein include, but are not limited to, paper (eg wood based paper, flax-containing paper, flax paper, cotton paper, other natural or Paper made from synthetic fibers, functional paper, special marking god, color paper), plastic (eg, fluorinated polymer such as polytetrafluoroethylene, silicone), film, coated paper, coated plastic, coating film, etc. , And any combination thereof. In some embodiments, the paper may be highly porous, corrugated, and / or have a high surface strength. In some embodiments, the paper may be substantially non-porous, for example, less than about 10 CORESTA units.

The porous mass described herein includes any method, system, and apparatus filed on October 14, 2011, including but not limited to co-pending application PCT / US11 / 56388. It can be manufactured using suitable methods and apparatus and / or systems. This application is incorporated herein by reference. For example, the porous mass can be produced using mold cavities by a continuous, batch, or hybrid process.
II. Articles containing porous mass

The porous mass described below includes use in combination with a filter for smoking devices and can be used as a filter or filter segment. As used herein, the term “smoking device” refers to an article capable of maintaining a smokable substance and a filter in fluid communication with the smoke generated product when the user inhales the smoking device during operation through the filter ( For example, it is possible to reach a human). Without being limited thereto, the term “smoking device” includes:
Cigarettes, cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking devices, self-wrapped cigarettes, self-rolled cigars, and any hybrids thereof can be raised.

In some embodiments, the smoking device can include a housing that can maintain a smokable material in fluid communication with the filter.
Non-limiting examples of suitable housings include: Cigarettes, cigarette holders, cigars, cigar holders, pipes, water pipes, hookahs, electronic smoking equipment, cigarettes that you wrap yourself, cigars that you wrap yourself, paper, etc., and any hybrids thereof, and any combinations thereof Can be mentioned.

Referring to the non-limiting example shown in FIG. 1, the smoking device 10 includes a smokable material shown as a filter 14 and a tobacco column 12. The filter 14 can include at least two sections, a first section 16 and a second section 18. For example, the first section 16 can include conventional filter material (described in more detail herein) and the second section 18 includes a porous mass (discussed in more detail herein).

Referring to the non-limiting example shown in FIG. 2, the smoking device 20 has a smokable material shown as a filter 22 and a tobacco column 12. Filter 22 shows a multi-segmented portion with three sections, sometimes called a dual offset filter. The filter in turn includes a filter section 24, a porous mass 26 and a sefiltration 24. In some embodiments, the filter section 24 may have any of the filter section materials described herein and / or their attributes.

Referring to the non-limiting example shown in FIG. 3, the smoking device 30 has a smokable material shown as a filter 32 and a tobacco column 12. Filter 32 is multi-segmented into sections 34, 36, 37, 38, and section 34 is a mouth and smoking device 30. In some embodiments, to provide a normal mouth feel to the user, section 34 can include conventional filter material, and sections 36, 37, 38 are independently described herein. Filter material and / or attributes, so that at least one of the sections 36, 37, 38 is a porous mass as described herein.

Referring to the non-limiting example shown in FIG. 4, the smoking device shown as pipe 40 includes a combustion bowl 42, a mouthpiece 44, and a channel 46 that interconnects the combustion bowl 42 and mouthpiece 44. Channel 46 includes a cavity 47 adapted to receive a filter 48. In some embodiments, the filter 48 may be a porous mass or a multi-segmented filter, for example as shown in the filter 14 of FIG. 1, the filter 22 of FIG. 2, or the filter 32 of FIG. Good. The size of the filter 48 may vary depending on the dimensions of the cavity 47. In some embodiments, the filter 48 may be removable, replaceable, disposable, recyclable, and / or degradable.

In some embodiments, a filter comprising a porous mass described herein may have any number of sections, e.g., 2, 3, 4, 5, 6, or more sections. Often, the sections are arranged in any suitable configuration and independently have the materials and attributes described herein.

Suitable materials for use in filters and / or filter sections that are not porous masses may include, but are not limited to: Cellulose acetate, cellulose ester, polypropylene, polyethylene, polyolefin tow, polypropylene tow, polyethylene terephthalate, polybutylene terephthalate, random orientation acetate, paper, corrugated paper, concentric filter (eg fiber tow peripheral filter and web material core), carbon -On-toe (sometimes called "Dalmatian filter"), silica, magnesium silicate, zeolite (eg, BETA, SBA-15, MCM-41, and MCM-48 modified with 3-aminopropylsilyl groups), Molecular sieve, salt, catalyst, sodium chloride, nylon, flavor, tobacco, capsule, cellulose, cellulose derivative, cellulose ester microsphere, catalytic converter, iodine pentoxide, coarse powder, carbon particles, carbon fiber, fiber , Glass beads, nanoparticles, void chamber (e.g., formed by rigid elements, such as paper or plastic), a baffle gap chamber, and any combination thereof. In addition, filters and / or filter sections that are not porous masses may include the additives described herein.

In some embodiments, a filter comprising a porous mass described herein can include a cavity between two filter sections. For example, between two porous mass sections, between two non-porous mass sections, or between a porous mass section and another section. The cavities may be filled with active particles and / or additives described herein, such as granular carbon, flavoring agents, and the like. The cavities may include capsules that themselves include, for example, polymer capsules containing active particles and / or additives as described herein. In some embodiments, the cavity may include tobacco as an additional flavor. If the cavity is insufficiently filled with the selected material, in some embodiments, this creates an interaction between the mainstream smoke component and the material in the cavity and other filter sections. It should be noted that it will not.

In some embodiments, a filter containing a porous mass described herein can be characterized by EPD. In some embodiments, a filter comprising a porous mass described herein can have the following EPD measured in the amount of water per mm of porous mass length:
Water of about 20 mm or less, water of about 19 mm or less, water of about 18 mm or less, water of about 17 mm or less, water of about 16 mm or less, water of about 15 mm or less, water of about 14 mm or less, water of about 13 mm or less, about 12 mm The following water, about 20 mm or less, about 11 mm or less, about 10 mm or less, about 9 mm or less, about 8 mm or less, about 7 mm or less, about 6 mm or less, about 5 mm or less Water, about 4 mm or less, about 3 mm or less, about 2 mm or less, and about 1 mm or less.

In some embodiments, the filter is substantially degraded over time (eg, about 2) in the presence of a catalyst that may be present naturally or in some embodiments in the filter section itself. 5 years from the year).

As shown in FIGS. 1-3, in some embodiments, the filter section with the porous mass and at least one other filter section are coaxial, juxtaposed, abutting, and equivalent cross-sectional area ( Or a cross-sectional area that may be substantially equivalent). However, it will be appreciated that the porous mass and conventional material need not be joined in such a manner, and other possible configurations may exist. Furthermore, porous mass is very often assumed to be used in a combined or multi-segmented filter configuration, for example as shown in FIGS. 1-3, but in some embodiments, FIG. As described above in connection with, the filter may consist essentially of the porous mass of the present invention.

As described above, the filter comprising the porous mass described herein can be utilized in combination with a smoking device. In some embodiments, the filter may abut a smokable material of a smoking device such as, for example, a tobacco or cigar. In some embodiments, the filter can be in fluid communication, for example, a hookah, pipe, cigar holder, tobacco holder, or tobacco having a cavity disposed between the filter and smokable material, or a cigar. It does not have to be in contact with the smokable substance as in FIG.

In some embodiments, the smokable material may be in the form of a tobacco column. As used herein, the term “tobacco column” refers to tobacco blends and other ingredients and flavors that can be combined, if necessary, to produce tobacco-based smokable articles such as tobacco or cigars. Point to. In some embodiments, the tobacco column may comprise a component selected from the group consisting of: That is, tobacco, sugar (eg, sucrose, brown sugar, invert sugar, or high fructose corn syrup), propylene glycol, glycerol, cocoa, cocoa products, carob, carob extract, and any combination thereof. Further, in some embodiments, the tobacco column may further comprise flavors, menthol, licorice extract, diammonium phosphate, ammonium hydroxide, and any combination thereof.
Examples of preferred types of tobacco that can be used in tobacco columns include, but are not limited to, bright leaf tobacco, burley tobacco, oriental tobacco (also referred to as Turkish tobacco), cavendish It may include tobacco, corojo tobacco, criollo tobacco, Perique tobacco, shade tobacco, white burley tobacco, and combinations thereof. Tobacco can be grown in the United States or on land with jurisdiction outside the United States.
III. Method of forming filters and smoking devices

In some embodiments, the filter sections can be combined or joined to form a filter or filter rod. As used herein, the term “filter rod” refers to a filter of a length that is suitable for cutting into two or more filters. By way of non-limiting illustration, in some embodiments, a filter rod comprising a porous mass as described herein has a length in the range of about 80 mm to about 150 mm, and a smoking device tip. In a tipping operation (adding a tobacco column to the filter), it can be cut into a filter having a length between about 5 and about 35 mm.

The tipping operation can include combining or joining a filter or filter rod described herein with a tobacco column. During the tipping operation, the filter rod comprising the porous mass described herein can be first cut into a filter or cut into a filter during the tipping process in some embodiments. Further, in some embodiments, the tipping method may further include combining or joining additional sections including paper and / or charcoal to a filter, filter rod, or tobacco column.

In the manufacture of filters, filter rods, and / or smoking devices, some embodiments involve packaging paper in such various components to maintain the components in the desired configuration and / or contact. Can be included. For example, manufacturing a filter and / or filter rod can include wrapping paper in a series of abutting filter sections. In some embodiments, the wrapping porous mass is placed with additional wrapping around the porous mass to maintain contact between the porous mass and the other sections of the filter. May be. Paper suitable for the manufacture of filters, filter rods, and / or smoking devices may include any of the papers described herein related to packaging a porous mass. In some embodiments, the paper may include additives, glues, and / or printing agents.

In the manufacture of filters, filter rods, and / or smoking devices, some embodiments can include adhering adjacent components thereof (eg, adjacent filter sections, tobacco columns, etc., or any of them) A porous mass to the combination of). Preferred adhesives can include those that do not impart a flavor or aroma under environmental and / or combustion conditions. In some embodiments, wrapping paper and adhesive can be utilized in the manufacture of filters, filter rods, and / or smoking devices.

Some embodiments of the present invention provide a porous mass rod comprising a plurality of active particles and binder particles bonded at a plurality of contact points; a filter that does not have the same composition as the porous mass rod Providing a rod;
Cutting the porous mass rod and the filter rod into a porous mass section and a filter section, respectively; forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least some porous mass sections And include at least some filter sections;
Fixing the desired abutment configuration with wrapping paper and / or adhesive to obtain a certain segmented filter rod length; cutting the segmented filter rod length into segmented filter rods And the method is performed to produce a segmented filter rod at a speed of about 600 m / min or less. Some embodiments can further include forming a smoking device having at least a portion of a segmented filter rod.

As used herein, the term “abutting configuration” means that two filter sections (etc.) are axially aligned such that one end of the first section touches one end of the second section. Refers to the configuration. One skilled in the art will appreciate that this abutting configuration is continuous (finite but very long) by multiple sections or by short sections with at least 2 to multiple sections.

In the methods of some embodiments described herein, the term “segmented” is used to modify and clarify various articles and includes articles (eg, filters and It should be noted that the various embodiments described herein with respect to (filter rod) should be considered to be included.

Some embodiments of the present invention provide a plurality of porous mass sections comprising a plurality of active particles and binder particles bonded at a plurality of contact points;
Providing a plurality of filter sections not having the same composition as the porous mass section;
Forming a desired abutting configuration comprising a plurality of sections including at least one of the porous mass sections and at least one of the filter sections, the plurality of sections being at least one porous mass section and at least one filter section including;
Securing a desired abutting configuration using wrapping paper and / or adhesive to produce a segmented filter or segmented filter rod length,
The method is performed to produce a segmented filter or segmented filter rod at a speed of about 600 m / min or less. Some embodiments can further include forming a smoking device with at least a portion of a segmented filter or segmented filter rod.

In some embodiments, the aforementioned method of the present invention may be adapted to provide more than two filter sections. For example, the desired configuration of the length of the filter rod can be a first porous mass section, a first filter section, and a second filter section configured in series, the first porous mass section, the first Second filter section, first first filter section, second second filter section, second porous mass section, third second filter section, second first filter section, and fourth second filter It can be a serial configuration of sections.
Such a configuration can be at least one embodiment useful for manufacturing a filter with three sections, as shown in FIG. 12, in which the length of the filter rod is one filter rod. Cut and then cut twice more to produce a filter section with three sections.

In some embodiments, the capsule can be included to be nested between two abutting sections. As used herein, the term “nested” or “neting” refers to the inside of the article being manufactured and not directly exposed to the outside. Thus, nesting between two abutting sections allows adjacent sections to contact, ie abut. In some embodiments, the capsule may be in some part.

In some embodiments, the filters described herein may be manufactured using known instrumentation equipment. For example, it can be produced by automated equipment when it is faster than about 25 m / min, and by manual equipment when it is slower.
While the production rate may be limited only by the capabilities of the instrument, in some embodiments, the filter sections described herein may be combined to form a filter rod at a rate in the following range: The lower limit is about 25 m / min or less, 50 m / min or less, or 100 m / min or less, and the upper limit is about 600 m / min or less, 300 m / min or less, 250 m / min or less.

In some embodiments, the porous mass utilized in the production of the filters and / or filter rods described herein is packaged with paper. In some embodiments, the paper can reduce damage and particle generation due to mechanical manipulation of the porous mass. Paper suitable for use to protect the porous mass during operation includes, but is not limited to, wood-based paper, paper with flax, flax paper, cotton paper, functionalized It may include paper (eg, one that has been functionalized to reduce tar and / or carbon monoxide), special marking paper, colored paper, and any combination thereof. In some embodiments, the paper may have a high porosity, corrugation, and / or high surface strength. In some embodiments, the paper may be substantially less non-porous, for example, less than about 10 coresta units.

In some embodiments, filters and / or filter rods comprising the porous mass described herein may be conveyed directly to a production line and combined with a tobacco column to form a smoking device. The
An example of such a method includes a process of manufacturing a smoking device, which includes the following:
Providing a filter rod with at least one filter section comprising a porous mass as described herein comprising active particles and binder particles; providing a tobacco column; each filter section comprising active particles and Cut the filter rod through the center of the rod and transverse to its longitudinal axis to form at least two smoking device filters with at least one filter section containing a porous material containing binder particles And joining at least one filter to the tobacco column along the longitudinal axis of the filter and the longitudinal axis of the tobacco column so as to form at least one smoking device.

In other embodiments, the device filter and / or filter rod containing the porous mass can be placed in a container suitable for storage until further use. Suitable storage containers include, but are not limited to, those commonly used in the field of smoking device filters, including wooden box, box, drum, bag, carton, and the like.

In some embodiments, a filter and / or smoking device comprising a porous mass described herein can be incorporated into a filter and / or pack of smoking devices. The pack may be a hinge lid pack, a slide and shell pack, a hard cup pack, a soft cup pack, or any other suitable pack container. In some embodiments, the pack may have an outer wrap, for example as a polypropylene wrap, and may be a tear-off tab if desired. In some embodiments, the filter and / or smoking device may be sealed as a bundle inside the pack. The bundle can include, for example, 20 or more filters and / or smoking devices. However, in some embodiments, the bundle can include a single filter and / or smoking device, for example, for individual sale or for flavor preservation.

In some embodiments, the pack carton comprises at least one filter and / or smoking device pack comprising a porous mass as described herein. In some embodiments, the carton (eg, container) has a physically corresponding configuration that can contain the weight of the pack tobacco. This can be accomplished by using thick card stock or by using a stronger adhesive to bond the carton elements to form the carton.

Since the consumer is expected to aspirate a smoking device comprising a porous mass as described herein, the present invention also provides a method of aspirating a smoking device as described herein. For example, in one embodiment, the present invention provides a method of inhaling a smoking device, the method heating or igniting the smoking device to form smoke, wherein the smoking device is described herein. Comprising at least one filter comprising a porous mass; the method comprises aspirating smoke through a smoking device; and the filter is contained in the smoke as compared to a filter not comprising a porous mass. Characterized in that the presence of at least one component is reduced.

In some embodiments, the filters and / or filter rods are porous masses (including the desired shape, length, circumference, voids, encapsulated pressure drop as described herein, and combinations thereof) Or consisting essentially of a porous mass, wherein the porous mass comprises active particles, binder particles, and, optionally, a composition, size as described herein. , And / or a combination of active particles, binder particles and additives in shape and / or concentration. In some embodiments, the filter and / or filter rod according to any of the previous embodiments may further comprise a desired number and composition of additional filter segments (including additional porous masses), and It may include any desired shape, length, circumference, encapsulated pressure drop, and combinations thereof. In some embodiments, the filter and / or filter rod of any of the previous embodiments can comprise a porous mass having active particles and binder particles, the filter comprising at least one of Having any combination:
(A) The active particle comprises an element selected from the following group:
Nanoscale carbon particles, carbon nanotubes with at least one wall, carbon nanohorns, bamboo-like carbon nanostructures, fullerenes, fullerene aggregates, graphene, graphene in several layers, graphene oxide, iron oxide nanoparticles, nanoparticles, Metal nanoparticles, gold nanoparticles, silver nanoparticles, metal oxide nanoparticles, alumina nanoparticles, magnetic nanoparticles, paramagnetic nanoparticles, superparamagnetic nanoparticles, gadolinium oxide nanoparticles, hematite nanoparticles, magnetite nanoparticles, Gado-nanotube, endofullerene, Gd @ C60, core-shell nanoparticles, onionated nanoparticles, nanoshells, onionated iron oxide nanoparticles and their Any combination;
(B) a porous mass having a void volume in the range of about 40% to about 90%;
(C) an active particle comprising carbon, and a porous mass having a carbon loading of at least about 6 mg / mm and an EPD of less than about 20 mm of water per mm of porous mass;
(D) A porous mass having an active particle loading of at least about 1 mg / mm and an EPD of less than about 20 mm of water per mm of porous mass.

In some embodiments, a filter and / or filter rod as described in any of the previous embodiments is included in and / or used in forming a smoking device as described herein. And may be used in any configuration and in any manner described herein.

In order to facilitate understanding of the invention, the following are preferred or representative examples and embodiments. The following examples should not be construed as limiting or defining the scope of the invention.
Example

In the following example, the effectiveness of a porous mass is shown for removing certain components of tobacco smoke. The porous mass was made in a ratio of 25% by weight of Ticona, LLC GUR2105, and 75% by weight of PICA RC259 (95% activated carbon) from PICA USA, Columbus, Ohio. The porous mass has a% void volume of 72% and an encapsulated pressure drop (EPD) of 2.2 mm water for 1 mm length of the porous mass. The porous mass has an outer circumference of about 24.5 millimeters. PICA RC259 carbon had an average particle size of 569 microns (μ). The porous mass was made by mixing resin (GUR2105) and carbon (PICA RC259) and filling the heated mixture (free sintering) into the mold without applying pressure. The mold was then heated to 200 ° C. for 40 minutes. Thereafter, the porous mass was removed from the mold and cooled. A defined length section of the porous mass was combined with a sufficient amount of cellulose acetate tow to obtain a filter with a total encapsulated pressure drop with a total of 70 mm of water. All smoke assays were performed according to tobacco industry standards. All cigarettes follow the strict Canadian protocol (ie T-115, “Determining Tar, Nicotine and Carbon Monoxide in Mainstream Cigarette Smoke”, Health Canada, 1999), and Cerulean 450 smoking machines Use was smoked.

In the following example, the effectiveness of a porous mass to remove certain components of tobacco smoke is shown. The porous mass was made from 30% by weight GUR X192 from Ticona, Dallas, Texas and 70% by weight PICA30x70 (60% activated carbon) from PICA USA, Columbus, Ohio. The porous mass has a 75%% void volume and an encapsulated pressure drop (EPD) with 3.3 mm of water per mm length of the porous mass. The porous mass has an outer circumference of about 24.5 millimeters. PICA 30x70 carbon had an average particle size of 405 microns (μ). The porous mass was made by mixing resin (GUR X192) and carbon (PICA 30x70) and filling the heated mixture (free sintering) into the mold without applying pressure. The mold was then heated to 220 ° C. for 60 minutes. The porous mass was then removed from the mold and cooled. The defined length section porous mass was combined with a sufficient amount of cellulose acetate tow to obtain a filter with an encapsulated pressure drop with a total of 70 mm of water.
All smoke assays were performed according to tobacco industry standards. All cigarettes follow the strict Canadian protocol (ie T-115, “Determining Tar, Nicotine and Carbon Monoxide in Mainstream Cigarette Smoke”, Health Canada, 1999) and use Cerulean 450 smoking machine And then smoked.

The following example demonstrates the effectiveness of a porous ion exchange resin mass to remove certain components of tobacco smoke. The porous mass was made from Ticona LLC 20% GUR2105 and 80% AMBERLITE IRA96RF (Rohm & Haas Philadelphia, PA). The 10 mm section of the porous mass was combined with a sufficient amount of cellulose acetate tow (12 mm) to obtain a filter with an encapsulated pressure drop of 70 mm total water.
All smoke assays were performed according to tobacco industry standards. All cigarettes follow the strict Canadian protocol (ie T-115, “Determining Tar, Nicotine and Carbon Monoxide in Mainstream Cigarette Smoke”, Health Canada, 1999), and Cerulean 450 smoking machines Use was smoked.

The following example demonstrates the effectiveness of a porous dry mass to remove water from tobacco smoke. The porous mass is 20% GUR2105 from Ticona LLC, Dallas, Texas.
80% by weight desiccant (calcium sulfate, DRIERITE; made from WA Hammond DRIERITEco. Ltd., Zenia, Ohio. 10 mm long porous mass The sections were combined with a sufficient amount of cellulose acetate tow (15 mm) to obtain a filter with a total pressure drop of 70 mm total water All smoke assays were performed according to tobacco industry standards. Follow the strict Canadian protocol (ie T-115, “Determining Tar, Nicotine and Carbon Monoxide in Mainstream Cigarette Smoke”, Health Canada, 1999), and using the Cerulean 450 smoking machine Smoking.

In the following example, a carbon-on-tow filter element is compared to the porous mass of the present invention. This comparison compares those with the same total carbon load.
In other words, the amount of carbon in each element is the same. The element length was allowed to change to obtain an equal amount of carbon. Reported changes in smoke components are made relative to conventional cellulose acetate filters (% change is relative to conventional cellulose acetate filters). All filter tips consisted of carbon elements and cellulose acetate tow. All filter tips were tipped with a long enough cellulose acetate filter tow to obtain a target 70 mm water filter pressure drop. The total filter length was 20 mm (carbon element and tow element). The carbon was 30x70, 60% active PICA carbon. All tobacco was smoked according to Canada's strict protocol (ie, T-115, “Determination of Tar, Nicotine and Carbon Monoxide in Mainstream Tobacco Smoke”, Health Canada, 1999).

In the following example, a porous mass made of highly active carbon (95% carbon tetrachloride absorption) is compared with a porous mass made of lower activated carbon (60% carbon tetrachloride absorption). The
The combined filter is made using a 10 mm porous mass section plus sufficient length of cellulose acetate to achieve a target, total 69-70 mm water encapsulated pressure drop did. These filters are attached to a commercial tobacco column and using a Cerulean SM450 smoking machine, a strict Canadian protocol (T-115, "Determination of tar, nicotine and carbon monoxide in mainstream tobacco smoke", Smoked according to Health Canada (1999). High activated carbon was PICA RC259, particle size 20 × 50, 95% active (carbon tetrachloride adsorption). The low activated carbon was PICA PCA, particle size 30x70, 60% activity (carbon tetrachloride adsorption). The carbon loading of each porous mass element was 18.2 mg / mm for low activated carbon and 16.7 mg / mm for high activated carbon. Data are reported in comparison with conventional cellulose acetate filters.

In the following example, the effect of particle size on encapsulated pressure drop (EPD) is shown. Porous lumps with carbon of various particle sizes can be obtained by adding a mixture of carbon and resin (2105 GUR) to the mold and heating the mixture at 200 ° C. for 40 minutes (free sintering) to obtain a rod (length = 39 mm and outer circumference = 24.5 mm). Thereafter, the porous mass was removed from the mold and allowed to cool to room temperature. EPD was determined for 10 porous masses and averaged.

１．Counts, ME他のデータに基づいた情報（2004）、「主流の煙の毒物の収量と世界市場のタバコのブランドのサンプルからの関係の予測」（Mainstream smoke toxicant yields and predicting relationships from a worldwide market sample of cigarette brands）：ISO喫煙条件、規制毒性及び薬理学、39：111-134、およびCounts, ME他（2005）、「煙の組成及び3つの機械-喫煙条件により喫煙された国際的商業タバコの関係の予測」（Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions）、規制毒性及び薬理学（Regulatory Toxicology and Pharmacology）、41：185から227。
２．上記表１−３から得られた％の削減。
In the following example, the porous mass specified in Tables 1-3 is used, and the filter made with the porous mass produces tobacco that meets World Health Organization (WHO) standards for cigarettes. To prove that it can be used. The WHO standards are:
WHO Technical Report Series 951, “Scientific Basis for Tobacco Product Regulation”, World Health Organization (2008), Table 3.10, page 112.
The results reported below show that the porous mass can be used to reduce the listed ingredients from tobacco smoke to levels lower than recommended by the WHO.

1. Information based on Counts, ME et al. (2004), "Mainstream smoke toxicant yields and predicting relationships from a worldwide market sample" of cigarette brands): ISO smoking conditions, regulatory toxicology and pharmacology, 39: 111-134, and Counts, ME et al. (2005), “Smoke composition and three mechanical-smoking conditions of international commercial tobacco Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions, Regulatory Toxicology and Pharmacology, 41: 185-227.
2. % Reduction obtained from Table 1-3 above.

１．Counts, ME他のデータに基づいた情報（2004）、「主流の煙の毒物の収量と世界市場のタバコのブランドのサンプルからの関係の予測」（Mainstream smoke toxicant yields and predicting relationships from a worldwide market sample of cigarette brands）：ISO喫煙条件、規制毒性及び薬理学、39：111-134、およびCounts, ME他（2005）、「煙の組成及び3つの機械-喫煙条件により喫煙された国際的商業タバコの関係の予測」（Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions）、規制毒性及び薬理学（Regulatory Toxicology and Pharmacology）、41：185から227。
２．上記表１−３から得られた％の削減。
In the following examples, as shown in Table 4, porous masses in which ion exchange resins are used as active particles are filters made from such porous masses, which are standards for tobacco from the World Health Organization (WHO). It can be used to show that it can be used to produce tobacco that meets the requirements. World Health Organization (WHO) standards for tobacco can be found in WHO Technical Report Series 951, Scientific Basis for Tobacco Product Regulations, World Health Organization (2008), Table 3.10, page 11. The results reported below show that the porous mass can be used to reduce certain components of tobacco smoke to a level lower than recommended by WHO.

1. Information based on Counts, ME et al. (2004), "Mainstream smoke toxicant yields and predicting relationships from a worldwide market sample" of cigarette brands): ISO smoking conditions, regulatory toxicology and pharmacology, 39: 111-134, and Counts, ME et al. (2005), “Smoke composition and three mechanical-smoking conditions of international commercial tobacco Smoke composition and predicting relationships for international commercial cigarettes smoked with three machine-smoking conditions, Regulatory Toxicology and Pharmacology, 41: 185-227.
2. % Reduction obtained from Table 1-3 above.

In the next example, the encapsulated pressure drop was measured on the filter. The porous mass was formed in a tumble jar by mixing the binder particles (ultra high molecular weight polyethylene) and active particles (carbon) in the desired weight ratio until well mixed.
The mold consists of a stainless steel tube having a length of 120 mm, an inner diameter of 7.747 millimeters, and an outer periphery of 24.34 millimeters.
The perimeter of each mold was lined with a standard, non-porous filter plug wrap. An instrument was fitted to the bottom to close the bottom of the mold, and then the mixture was placed in a paper-lined mold to reach the top of the mold. The mold was solidified (bounded) 10 times with a rubber stopper, and then finished again to reach the top of the paper in the mold and bounced 3 times. The top of the mold is then sealed, placed in an oven, and heated to a temperature of 220 ° C. for 25-45 minutes without application of pressure, based on mold design, binder particle molecular weight, and heat transfer. The encapsulated pressure drop was measured in mm of water. These components of the mixture and the test results are shown in Tables 15-20 below. The polyethylene binder particles used were from Ticona Polymers LLC, a division of Celanese, Dallas, Texas, under the following trade names:
Molecular weights are shown in parentheses: GUR (R) 2126 (about 4x10 ⁶ grams / mole), GUR (R) 4050-3 (about 8-9 x10 ⁶ grams / mole), GUR (R) 2105 (about 0.47 x 10) ⁶ g / mol), GUR (R) X192 (about 0.60X10 ⁶ g / mol), GUR (R) 4012 (about 1.5 × 10 ⁶ g / mol), and GUR (R) 4022-6 (about 4x10 ⁶ g / Mole)

The data shown in FIGS. 6-9 was obtained from additional EPD testing of the porous mass described herein based on carbon loading and comparative samples. The porous mass is in particular an ultra-high molecular weight polyethylenetan selected from the binder particles GUR (R) 2105, GUR (R) X192, GUR (R) 4012 and GUR (R) 8020 and active particles (carbon) Was mixed at the desired weight ratio until well mixed with a tumbler. The mold is formed of a stainless steel tube having a length of about 120 millimeters, an inner diameter of about 7.747 millimeters, and an outer periphery of about 24.5 millimeters (theoretical) or about 17.4 (theoretical).
The perimeter of each mold was lined with a standard, non-porous filter plug wrap. An instrument was fitted to the bottom to close the bottom of the mold, and then the mixture was placed in a paper-lined mold to reach the top of the mold. The mold was solidified (bounded) 10 times with a rubber stopper, and then finished again to reach the top of the paper in the mold and bounced 3 times. The top of the mold is then sealed, placed in an oven, and heated to a temperature of 220 ° C. for 25-45 minutes without application of pressure, based on mold design, binder particle molecular weight, and heat transfer. The filter is then cut to 100 millimeters. The perimeter of the filter being tested has been reported. These were substantially circular shapes. The encapsulated pressure drop was measured in mm of water according to the CORESTA procedure.

FIG. 6 is a comparative document showing the results of an encapsulated pressure drop test of a carbon-on-toe filter having an average circumference of about 24.5 millimeters.

FIG. 7 shows the results of an encapsulated pressure drop test of a porous mass filter of the present invention (including polyethylene and carbon) having an average circumference of about 24.5 millimeters.

FIG. 8 is a comparative document showing the results of an encapsulation pressure drop test for a carbon-on-toe filter having an average circumference of about 16.9 millimeters.

FIG. 9 shows the results of an encapsulated pressure drop test of a porous mass filter of the present invention (including polyethylene and carbon) having an average circumference of about 16.9 millimeters.

In the following example, the porous mass segment is combined with a cellulose acetate filter segment to produce a segmented filter rod, which is then used to produce a segmented filter, optionally Tobacco was produced with a segmented filter. The dimensions of the porous mass rod and cellulose acetate filter rod used in this example were about 23.75 millimeters (+ −0.15 millimeters) perimeter and about 120 mm long. Referring to FIG. 10, this example shows a schematic diagram of the process of manufacturing a segmented filter, but the cellulose acetate filter rods 1010, 1012 are cut into 8 sections (about 15 mm each) to obtain the cellulose acetate segment 1014. And to obtain a porous mass segment 1016, the porous mass rod 1012 was cut into 10 segments (about 12 mm each). Segments 1014, 1016 were then packaged with paper glued in the same line so that the ends were aligned alternately and brought into close contact to produce a segmented filter length 1018. The segmented filter length 1018 was then cut approximately in the middle of every fourth cellulose acetate segment 1014 to produce a segmented filter 1020 with portions of the cellulose acetate segment 1014 disposed at each end. Those skilled in the art having the benefit of this disclosure will appreciate that other sizes and configurations of the cellulose acetate segment and the porous mass segment may be used to obtain the length of the segmented filter, and these can then be It can be appreciated that cutting at a point can provide the desired segmented filter rod, eg, segmented filter rod 1020.

In this example, the segmented filter rod 1020 described above and shown in FIG. 11 is used to ensure the weight and mechanical strength of the porous mass.
Manufactured using SOLARIS (R) equipment (filter binding equipment from the International Tobacco Machine group) with slight modifications. Bonding speeds of up to 400 meters / minute were achieved. It was observed that the segment cutting, paper wrapping, and bonding steps proceeded without problems. Furthermore, the amount of dust produced by mechanical manipulation of the porous mass is typically observed to be less than that produced by a Dalmatian filter rod used in place of the porous mass filter rod in a binding device. It was done. In addition, visual inspection of the manufactured segmented filter rods showed that cellulose acetate segments were minimally contaminated by dust generated from mechanical manipulation of the porous mass, even if they were contaminated. Met.

Thus, the present invention can achieve the objectives and benefits described herein as well as its inherent benefits. The present invention may be implemented in different but equivalent ways, as will be apparent to those skilled in the art having the benefit of the teachings herein, and thus the specific embodiments disclosed above are merely Shown as exemplary. Furthermore, the invention is not intended to be limited to the details of construction or design shown herein other than as described in the claims below. Accordingly, the specific exemplary embodiments disclosed above may be altered, combined, or modified, and all such variations are within the scope of the invention and the intended spirit of the invention. Obviously, it is within range. The invention appropriately disclosed in this specification by way of example is suitably carried out even in the absence of any element not disclosed herein and / or any element disclosed herein. Would be able to. Although compositions and methods are described in terms of “comprising,” “containing,” or “including”, the compositions and methods are described in terms of various components and steps. Sometimes “consists essentially of” or “consists of”. All numerical values and ranges disclosed above may differ to some extent by their values or ranges. Whenever a numerical range with a lower limit and an upper limit is disclosed, it is understood that any number and range within that range is specifically disclosed. In particular, the range of all values disclosed herein ("about a to about b" or "approximately a to b", similarly or "approximately ab") It should be understood that all values and ranges that fall within the broader range of the range. Unless explicitly and clearly defined by the patentee, the terms in the claims have their ordinary and ordinary meanings. Further, the indefinite article “a” or “an” as used in the claims is defined herein to mean one or more elements that it introduces. Definitions consistent with this specification, if there is a discrepancy in word or term usage between this specification and one or more patents or other documents that may be incorporated herein by reference Should be adopted.

Claims (3)

A method,
Providing a packaged porous mass rod comprising a plurality of active particles and binder particles bonded at a plurality of sintered contact points , wherein the porous mass rod is a mechanical member of the porous mass. Packaged with paper, plastic, or film or any combination thereof to reduce operational damage and particle generation ;
Providing a filter rod not having the same composition as the porous mass rod;
Cutting the porous mass rod and the filter rod into a porous mass section and a filter rod section, respectively;
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least some porous mass sections and at least some filter sections;
Fixing the desired abutment configuration with wrapping paper to obtain a segmented filter rod length; and cutting the segmented filter rod length into segmented filter rods. ,
Including:
The method wherein the forming, fixing and cutting steps are performed to produce a segmented filter rod at a speed of about 25 m / min or more. A method,
Providing a packaged porous mass rod comprising a plurality of active particles and binder particles bonded at a plurality of sintered contact points , wherein the porous mass rod is a mechanical member of the porous mass. Packaged with paper, plastic, or film or any combination thereof to reduce operational damage and particle generation ;
Providing a filter rod not having the same composition as the porous mass rod;
Cutting the porous mass rod and the filter rod into a porous mass section and a filter section, respectively;
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least some porous mass sections and at least some filter sections;
Securing the desired abutting configuration with an adhesive so as to obtain a segmented filter rod length; and cutting the segmented filter rod length into segmented filter rods. ,
Including
The method wherein the forming, fixing and cutting steps are performed to produce a segmented filter rod at a speed of about 25 m / min or more. A method of manufacturing a segmented filter rod, comprising:
Providing a plurality of packaged porous mass sections comprising a plurality of active particles and binder particles bonded at a plurality of sintered contact points, wherein the porous mass rod is a mechanical device of the porous mass; Packaged with paper, plastic, or film or any combination thereof to reduce mechanical damage and particle generation;
Providing a plurality of filter sections not having the same composition as the porous mass section;
Forming a desired abutting configuration comprising a plurality of sections, the plurality of sections comprising at least one porous mass section and at least one filter section;
Fixing the desired abutment configuration with an adhesive so as to obtain a segmented filter rod length;
Cutting the length of the segmented filter rod into segmented filter rods; and cutting the segmented filter rod into segmented filters;
Including
The segmented filter wherein the forming, securing and cutting the length of the segmented filter rod is performed to produce a segmented filter rod at a speed of about 25 m / min or more. A method of manufacturing a rod.

Images