JPH0445485B2 - - Google Patents

Description

[Detailed description of the invention]

The present invention relates to a new nail polish composition and means for its application. More particularly, the present invention provides a nail polish formulation having a low viscosity, i.e., a viscosity of less than about 200 cps, and a relatively high pigment concentration and dispensing the nail polish composition with a pen having a substantially non-bristle brush tip. It is directed to a coating means. BACKGROUND OF THE INVENTION Conventionally known nail polish formulations have been used with pen-like applicators of the type disclosed in US Pat. No. 3,592,202. The pen consists of two bristle brush tips, one at each end, and two reservoirs, one containing nail polish and the other containing nail polish remover. The nail polish or remover is delivered to the bristle tip of the pen by compressing a reservoir containing the liquid formulation. This technique of delivering nail polish or remover to the brush makes the brush suitable for all practical purposes in that it does not require any special formulation to properly deliver nail polish or remover to the bristle brush tips. The technique is similar to dipping into a reservoir of nail polish or remover. Moreover, the prior art relies on the use of conventional nail polishes whose viscosity is sufficiently high to enable them to be retained on the brush of the applicator. In contrast to the prior art, which applies such nail polish to the surface of the nail, the present invention provides a substantially It utilizes a non-bristle nib. When the tip of this nib is pressed, nail polish is released from the reservoir and saturates the nib over its entire length.
Allows for a controlled flow of nail polish to be delivered to the tip end upon contact with the nail surface. Conventional nail polish formulations are unsuitable for use in the applicator means of the present invention primarily due to their high viscosity, generally greater than about 300 cps. The term viscosity as used in the present invention refers to Newtonian viscosity, which is different from thixotropic viscosity. Reducing the viscosity of conventional nail polish by diluting it with a suitable thinner results in a composition that flows easily into the non-bristle nib of the applicator means of the present invention;
Such compositions become essentially useless as nail polishes because the pigment and/or other nail polish solids content is reduced to the point that satisfactory coverage of the nail surface cannot be obtained. . The main objectives of the present invention are therefore twofold: the first objective is to provide a new method for applying nail polish to the nail surface, namely via a substantially non-bristle tip attached to a pen. The second object is to have a non-bristle nib of the applicator having a full length and a very low viscosity such that it can easily flow onto the nail surface, but sufficiently long to give satisfactory nail coverage properties. It is an object of the present invention to provide a new commercially acceptable nail polish composition having a high pigment or solids content. These and other objects will become readily apparent from the detailed description of the invention that follows. DETAILED DESCRIPTION OF THE INVENTION The nail polish compositions of the present invention are generally prepared by mixing a suitable pigment paste or slurry with the final lacquer formulation. Although these new formulations can be prepared without pigments, these compositions generally contain at least one pigment component. Pigment pastes or slurries are prepared by grinding a suitable pigment or combination of pigments in a millbase. Although the present invention falls within the technical scope as described above, it is specifically limited to the following preferred embodiments. That is, the present invention provides homopolymers and copolymers of () nitrocellulose, cellulose propionate, cellulose acetate butyrate, ethyl cellulose, sucrose acetate isobutyrate, polyvinyl acetate, polyvinyl alcohol, thermoplastic acrylic esters, alkyl acrylates and methacrylates. , 2 to 40% by weight of a main film-forming agent selected from urethane polymers, nylons, polyesters and alkyds, and () at least one conventional pigmentary material and a water-inert protection compatible with the main film-forming agent. a colloid and an essentially non-flammable, non-explosive mill base comprising an essentially non-flammable, low-volatility plasticizer that is compatible with the colloid and the main film-forming agent. 24% by weight, the composition comprising:
The present invention provides a low viscosity nail polish composition having a viscosity of 10 to 25 cps and containing 3.10 to 12.36% by weight of a pigment material. Suitable pigments used in millbase include:
Mention may be made of all the known ones commonly used in the cosmetics industry, which are therefore non-toxic, non-sensitizing, non-staining, virtually insoluble in solvents, essentially free from leaching tendencies and lacquer-free. It should be compatible with the solvent used in the formulation and moderately stable to light. The average particle size of the pigment selected should be very small, ie, in the range of about 0.1 microns to about 2.0 microns to ensure satisfactory dispersion properties. As a practical matter, pigments used in nail polish must meet appropriate national regulatory laws, such as in the United States, pigments or colorants must be cleared by the Food and Drug Administration (FDA). The most widely used pigments include: D&C Red6, D&C Red30, and D&C Red30.
D&C Red36, D&C Red9), D&C Red7,
D & C Let's 21 (D & C
Red21), D&C Red34 (D&
C Red34), FD&C Yellow5, FD&C Yellow6, ferric ferrocyanide, and iron oxide for cosmetics. In addition to the foregoing, titanium dioxide primarily provides opacity and is often used as a pigment in combination with other pigments to provide a light finish pigment shade. The pigments are milled individually or in combination to provide the desired pigment shade. The amount of pigment used in preparing the paste or slurry is approximately
It ranges from 20.0% to about 80.0%. however,
As will be appreciated by those skilled in the art, the amount of pigment contained in the millbase will vary depending on the characteristics of the pigment used, such as density and oil absorption, as well as the viscosity of the combined millbase and pigment and the requirements of the processing equipment. According to the invention, the pigment (or pigments) selected for use is milled in a millbase formulation to give a paste composition, which can be incorporated directly into the lacquer composition. finished, final coating composition (e.g. nail polish)
give. The essential components of the millbase in which the pigment is ground include (1) a water-insoluble protective colloid that is capable of preventing agglomeration of the pigment particles and is compatible with the film-forming agent present in the lacquer composition; (2) Includes a plasticizer that has low volatility and is compatible with both the facial colloid in the millbase as well as the film forming agent used in the final coating composition. Preferred millbases include compositions that are essentially non-flammable and non-explosive and, when combined with pigments and plasticizers, have a suitable consistency to enable milling in high shear equipment. It is something to give. The resulting pigment paste composition, ie, the finely divided pigment in combination with the millbase component, should be easily dispersible in the lacquer composition without substantially increasing the viscosity of the final coated product. The protective colloid used in the millbase should be sufficiently soluble in the plasticizer used therein, such that the protective colloid material completely covers the dispersed individual pigment particles in at least a monolayer. The amount should be adequate to provide enough material to Generally, the molecular weight of the colloid should be sufficient to provide adequate colloidal action to prevent the facial particles from agglomerating. Additionally, the colloid selected should be compatible with the cellulose nitrate or other desired film forming agent present in the lacquer composition. The above description was the main criterion for selecting a suitable protective colloid, but it should also be soluble in the solvent system used in the final product and not significantly increase the viscosity of the final product, i.e. - It is also important not to increase the flow to the extent that it obstructs the flow through the bristle nib. Other considerations in selecting a suitable protective colloid include its stability in the final formulation, its suitability for its intended use, i.e. its non-toxicity to the surfaces to which the final coating composition is applied, e.g. nail surfaces. and the effect on the properties of the final coating composition, such as the gloss, adhesion, resistance to environmental conditions, processing depth, flexibility and hardness of the membrane coating. Representative compound groups of suitable suitable protective colloids include saccharide-based polymers, acrylic polymers, polyesters, alkyd resins, polyamides, cellulose polymers, sulfonated naphthalenes, vinyl polymers, formaldehyde condensates, polyurethanes, substituted pyrrolidone polymers and polypropylene. Examples include oxides. Preferred protective colloids for use in the mill base of the present invention include toluenesulfonamide formaldehyde condensates (e.g. Monsanto's Santorite M.H.
SANTOLITEM HP], methylbutyl methacrylate copolymer [Rohm &Haas' Acryloid B-
66″ (Acryloid B-66″)], sucrose benzoate, ethyl cellulose, dimer acid-based polyamide resin [Hankel Versamide 940
(Versamide 940)] and esterified perintaerythritol polymer [Hercules' Harcoflex 900 (Herco-
Flex900)]. Generally, the amount of protective colloid utilized in the millbase is that amount necessary to prevent agglomeration of the pigment particles. Protective colloid is approximately 2.0% to 25.0% by weight
It has been found that satisfactory results are achieved when present in amounts in the range of % by weight. The selection of plasticizer components used in the mill base of the present invention should be based on the following general standards. its low volatility, its ability to sufficiently solubilize the selected protective colloids, its compatibility with the selected film formers and other ingredients in the final product formulation, and the viscosity of the final product. the ability to not significantly increase
These include the ability to impart color fastness and stability. Within these general parameters, one skilled in the art will readily be able to recognize suitable plasticizers from the following group of compounds. Namely, abietic acid derivatives, acetic acid derivatives, adipic acid derivatives, azelaic acid derivatives, benzoic acid derivatives, polyphenyl derivatives, citric acid derivatives, epoxy derivatives, proprietary drug esters, ether derivatives, formal derivatives, glutaric acid derivatives, glycerol derivatives, glycols. derivatives, linear dibasic acid derivatives, petroleum derivatives, isobutyric acid derivatives, isophthalic acid derivatives, lauric acid derivatives, mellitic acid derivatives, myristic acid derivatives, nitrile derivatives, oleic acid derivatives, palmitic acid derivatives, paraffin derivatives, pelargonic acid derivatives, Pentaerythritol derivatives, phosphoric acid derivatives, phthalic acid derivatives, polyesters, ricinoleic acid derivatives, sebacic acid derivatives, stearic acid derivatives, styrene derivatives, sucrose derivatives, sulfonic acid derivatives, terephthalic acid derivatives, tartaric acid derivatives, carbonic acid derivatives, aconitic acid derivatives , maleic acid derivatives, fumaric acid derivatives,
These include caprylic acid derivatives, butyric acid derivatives, and camphor and castor oil. Preferred plasticizers include N-ethyltoluenesulfonamide [Santeisizer R
(Santicizer8)], butyl benzyl phthalate (Santicizer S160), alkyl sulfonic acid esters of phenols such as "Mesamoll" (Mobay Chemical Co.) and tricresyl phosph. Examples include et. The amount of plasticizer used in the mill base should be sufficient to solubilize the protective colloid, but it is generally found that amounts of about 75% to about 95% by weight are effective. did. Surfactants can optionally be included in the millbase to aid in dispersing the facial weight. The amount of surfactant, if present, will vary depending on the particular type of surfactant used and the properties desired, but the amount of surfactant may range from about 0.1% to about 5.0%.
is within the range of Any surfactant that is compatible with the ingredients in the final composition can be used, such as Nalco 2395 or Troykyd Solvent Anterator.
Anticrater) 366 was found to give satisfactory results. The combined pigment and suitable millbase composition are processed (milled) under high shear conditions.
can provide a pigment paste composition in which the pigment has an average particle size of about 0.1 microns to about 2.0 microns. Preferred pigment compositions suitably have a pasty consistency that can be mixed directly with the lacquer formulation. However, as a practical matter, the pigment paste is generally first combined with a suitable lacquer thinner and then the remaining ingredients are added. The following specific examples illustrate specific millbases made in accordance with the present invention and methods that have been found useful in preparing pigment compositions. Example 1 A 200 pound batch of millbase was prepared according to the following method. 159 pounds (approx. 72
Kg, 79.5% by weight) of plasticizer [Santeisizer 8
(Santicizer8)] i.e., N-ethyltoluenesulfonamide was weighed on a Toledo floor balance,
Pour into a steam-warmed kettle equipped with a ``Lightnin'' variable speed propeller mixer. The plasticizer was heated to a temperature of 190°C (approximately 88°C) while stirring. 41 pounds (approximately 18.6 Kg, 20.5% by weight) of a protective colloid (Santolite MHP), or toluenesulfonamide formaldehyde condensate, from Toledo.
It was weighed on a floor scale and broken into pieces approximately 1 inch (approximately 2.5 cm) in diameter or less. The mixer speed was then increased to a point just before splashing, the protective colloid was gradually added to the plasticizer, and the temperature was maintained at 170° C. until all the protective colloid was dissolved. Then cool the mixture to 120°~140〓
The temperature was maintained between (49° and 60°C). Example 2 50 lbs. (approximately 23 lbs.) of each of the following millbase formulations:
The method of Example 1 was repeated in the preparation of batches of Kg). Ingredients (A) Santicizer 160 95.0% by weight Acryloid B66 (Rohm & Haas) 5.0% by weight (B) Santicizer 8
97.0% by weight Versamide 940 3.0% by weight [Henkel Chemicals
Chemicals）〕 (C) Santicizer8
85.0% by weight Sucrose benzoate 15.0% by weight [Velsicol Prod.] (D) Tricresyl phosphate 96.0% by weight [Monsanto] Ethyl cellulose 4.0% by weight [Hercules Chemicals] (E) Tricresyl phosphate Cresyl phosphate 93.0% by weight [Monsanto] Herco Flex 900 Polyester
7.0% by weight (Herco Flex900Polyester) [Hercules Chem
Chem.)] (F) "Mesamoll" 80.0% by weight [Mobay Chemical Co.] Santolite MHP 20.0% by weight Pigment paste compositions of Examples 4 to 13 The following general method was used in the preparation of Example 3 A quantity of the mill base prepared according to Example 1 is placed in a chain paste mixer and the temperature of the mill base is maintained at 120°-140° (approximately 49°-60° C.). Once the desired pigment shade is determined, the appropriate amounts of individual pigments or pigment mixtures are weighed and incorporated into the millbase by hand stirring to prevent excessive dusting. Place the chain containing pigment and millbase under a mixer and mix until a well-dispersed slurry is obtained, completely free of lumps and dry pigment. The mill processing equipment, namely the Buehler SDX-600 three-roll mill with standardized roller speeds,
Roll approximately 72〓 (22.2℃) to approximately 124〓 (approximately 51.2℃)
Preheat the roll to a temperature in the range of about 15
~18.5 bar (approx. 220 lbs. approx. 27 lbs.) (approx. 100
-123Kg) and prepare for operation by setting the knife oil pressure to 7 bar (about 103 pounds) (about 47Kg). The slurry in the chain is then transferred to a mill and the slurry is milled by passing the material through the mill a sufficient number of times at the specified parameters necessary to obtain a paste of the desired average pigment particle size, i.e. from about 0.1 to about 2.0 microns. Process. Slurry material that does not pass through the mill rolls, i.e., “hang
-back)'' material is moistened with an additional amount of slurry sufficient for it to pass through the rolls. The milled pigment paste is then poured into a clean dye cane.
Transfer to a paste mixer and mix until homogeneous. Example 4 According to the method of Example 3, using the following materials, 2300
A batch of pigment paste compositions of g was prepared: Mill Base (Example 1) 62.5% by weight D&C RED #7 Calcium Lake 37.5% by weight Buehler SDX 600 Mil -600mill) three rolls for 99〓
(approximately 37°C) and then cooled rolls 1 and 3 to 97° (approximately 36°C). Roll oil pressure was set at 18.5 bar (272 lb) (approx. 123 Kg). Knife oil pressure is 7 bar (103 lbs) (approximately 47
Kg). The pigment slurry was passed through the mill three times under the above conditions and the resulting pigment paste composition was milled using a Precision grinding gauge (NIP) having a range of 0-12-1/2 microns.・I.R.I. (NI)
The particles had an average particle size ranging from about 0.1 to about 2.0 microns, as measured by PIRI) 625-1/2 Mu. Example 5 According to the method of Example 3, 2300
A batch of pigment paste compositions of g was prepared: Millbase (Example 1) 70.0% by weight D&C Red #7Rosinated Ca.Lake 30.0% by weight D&C Red #7Rosinated Ca.Lake -600 mill (Buehler SDX-600 mill) three rolls 106〓
(41°C) and then cooled rolls 1 and 3 to 97° (approximately 36°C). roll hydraulics
It was set at 18.5 bar (272 pounds) (approximately 123Kg).
Knife oil pressure was set at 7 bar (103 lb) (approximately 47 Kg). The pigment slurry was heated under the above conditions for 3
When passed through a double mill, the resulting pigment paste composition had an average particle size ranging from about 0.1 to about 2.0 microns as measured by the grind gauge used in Example 4. Example 6 2300 g using the following materials according to the method of Example 3
Batches of pigment paste compositions were prepared: Milbase (Example 1) 70.0% by weight D&C Yellow #5 Zirconium Lake 30.0% by weight Buehler SDX-600 Mil -600mill) three rolls for 99〓
(approximately 37° C.) and then cooled rolls 1 and 3 to 90° (approximately 32° C.). Roll oil pressure was set at 16.5 bar (243 lb) (approximately 110 Kg). Knife oil pressure to 7 bar (103 lbs) (approximately 47
Kg). The pigment slurry was passed through the mill three times under the conditions described above and the resulting pigment paste composition had an average particle size ranging from about 0.1 to about 2.0 microns as measured by the grind gauge used in Example 4. Was. Example 7 According to the method of Example 3, 2300
Batch of pigment paste composition of g was prepared: Millbase (Example 1) 48.520% by weight Ferric ferrocyanide for cosmetic grade 2.00% by weight D&C Red #6 Ba. Lake 1.729% by weight D&C TiO ₂ 44.969% by weight Iron oxide M for cosmetic grade 3.216% by weight D&C Yellow #5 Zirconium Lake
1.366wt% Beuler SDX-600 mil three rolls 127
Rolls 1 and 3 were preheated to 118°C (approximately 53°C) and then cooled to 118°C (47.4°C). Roll oil pressure was set at 18.5 bar (272 lb) (approx. 123 Kg). Knife oil pressure to 7 bar (103 lbs) (approx.
47Kg). The pigment slurry was passed through the mill three times under the conditions described above, and the resulting pigment paste composition had an average diameter ranging from about 0.1 to about 2.0 microns as measured by the grind gauge used in Example 4. was. Example 8 According to the method of Example 3, 1000
Batch of pigment paste composition of g was prepared: Mill Base (Example 2A) 62.5% by weight D&C Red #7 Calcium Lake 37.5% by weight Three rolls of Büller SDX-600 Mill were prepared by 99%
(approximately 37°C) and then cooled rolls 1 and 3 to 97° (approximately 36°C). Roll oil pressure was set at 18.5 bar (272 lb) (approx. 123 Kg). Knife oil pressure to 7 bar (103 lbs) (approximately 47
Kg). The pigment slurry was passed through the mill three times under the conditions described above and the resulting pigment paste composition had an average particle size ranging from about 0.1 to about 2.0 microns as measured by the grind gauge used in Example 4. Was. Example 9 According to the method of Example 3, 1000
Batch of pigment paste composition of g was prepared: Millbase (Example 2D) 70.0% by weight D&C Yellow #5 Zirconium Lake
30.0% by weight 99〓 Three rolls of Büller SDX-600 mil
(approximately 37° C.) and then cooled rolls 1 and 3 to 90° (approximately 32° C.). Roll oil pressure was set at 16.5 bar (243 lb) (approximately 110 Kg). Knife oil pressure to 7 bar (103 lbs) (approximately 47
Kg). The pigment slurry was passed through the mill three times under the conditions described above and the resulting pigment paste composition had an average particle size ranging from about 0.1 to about 2.0 microns as measured by the grind gauge used in Example 4. was. Example 10 According to the method of Example 3, 2300
Batch of pigment (shade) paste composition of g was prepared. Mill base (Example 1) 55.0% by weight D&C Red #6Ba. Rake 45.0% by weight Three rolls of Büller SDX-600 mil 106
Rolls 1 and 3 were preheated to 97° (about 36°C). roll hydraulics
It was set at 18.5 bar (272 pounds) (approximately 123Kg).
Knife oil pressure was set at 7 bar (103 lb) (approximately 47 Kg). The pigment slurry was passed through the mill three times under the conditions described above, and the resulting pigment paste composition had a roughness of approximately
It had an average particle size ranging from 0.1 to about 2.0 microns. Example 11 According to the method of Example 3, 2300
A batch of pigment (shade) paste composition of 1.5 g was prepared: Mill Base (Example 1) 70.0% by weight D&C Yellow #6 Al Lake 30.0% by weight Three rolls of Büller SDX-600 Mil 99㎓
(approximately 37°C) and then cooled rolls 1 and 3 to 90° (approximately 32°C). roll oil pressure 15
I set it to a crowbar (220 pounds) (approximately 100Kg). Knife oil pressure was set at 7 bar (103 lb) (approximately 47 Kg). The pigment slurry was passed through the mill three times under the conditions described above, and the resulting pigment paste composition had a roughness of approximately
It had an average particle size ranging from 0.1 to about 2.0 microns. Example 12 According to the method of Example 3, 2300
Batch of pigment (shade) paste compositions of 100 g were prepared: Milbase (Example 1) 69.879% by weight D&C TiO ₂ 1.408% by weight D&C Red #34 Calcium Lake 26.924% by weight Ferric ferrocyanide for cosmetics 1.789% by weight Beuler SDX −600mil three rolls for 99〓
(approximately 37℃) and rolls 1 and 3 at 90℃.
〓 (approximately 32°C). Roll oil pressure was set at 16.5 bar (243 lb) (approximately 75 Kg). Knife oil pressure was set at 7 bar (103 lb) (approximately 47 Kg). The pigment slurry was passed through the mill three times under the conditions described above, and the resulting pigment paste composition, as measured by the grind gauge used in Example 4, ranged from about 0.1 to about
It had an average particle size in the range of 2.0 microns. As is clear from the foregoing description, this pigment composition is an intermediate product that is ultimately to be incorporated into a lacquer formulation for nail polish compositions. The foregoing disclosures and examples are all directed to use as grinding media for a variety of preferred mill-based pigment materials, pigment paste compositions that can be incorporated directly into the lacquer formulations of the present invention. These pigment materials can also be milled in a nitrocellulose-containing millbase to form pigment chips according to conventional "chipping" techniques. However, when nitrocellulose pigment chips are used in accordance with the present invention, it is important that the viscosity of the final nail polish composition containing the nitrocellulose prepared pigment component should be less than 200 cps. This is, for example, around 100cps
Nitrocellulose 70% This can be accomplished by using IPA lubricating grade nitrocellulose in the mill base to form the pigment chips. Normal nail polish compositions generally range from about 90 to
It is understood that nitrocellulose having a rating of 100 cps or higher is used, i.e. 1/4 second nitrocellulose. It should also be understood that nail polish pigment chip formulations may be prepared using grades of nitrocellulose with a viscosity of less than 90 cps, such as 18-25 cps. Using this grade of nitrocellulose allows greater pigment loading than can be achieved using 90-100 cps grades of nitrocellulose. Of course, if nitrocellulose chips of the above type are utilized, the colored chips can be dissolved in a suitable solvent and then mixed with a suitable lacquer formulation in a pigment dispersion to give the final nail polish composition. Alternatively, it is necessary to form a slurry (shade paste). The lacquer formulation into which the pigment paste or slurry of the present invention is mixed includes a suitable film-forming agent and various optional ingredients, such as one or more modified resins, thinners, solvents, diluents, surfactants, flocculants, or suspending agents. It includes. A preferred film forming agent is cellulose nitrate at 18-25 cps.
However, it should be understood that any nitrocellulose polymer may be utilized so long as the viscosity of the final nail polish composition is less than or equal to 200 cps. Other suitable film-forming agents include cellulose propionate, cellulose acetate butyrate, ethylcellulose, sucrose acetate isobutyrate, vinyl polymers such as polyvinyl acetate and polyvinyl alcohol, acrylic resins such as acrylic polymers (thermoplastic acrylic esters, alkyl acrylates and homopolymers and copolymers of methacrylate),
Examples include urethane polymers, nylons, polyesters and alkyds. Those skilled in the art will appreciate that various other ingredients present in either the lacquer formulation or the final composition, such as protective colloids present in the millbase, also act as film formers. A certain amount of this component is carried into the final nail polish as part of the pigment paste. It has been found that the amount of nitrocellulose film forming agent present in the lacquer formulation typically ranges from about 2.0% to about 20.0%. The amount of preferred nitrocellulose film forming agent, ie, film forming agent having 18-25 cps, typically ranges from about 3.0% to 15.5%, with a preferred range of about 5.0% to about 10.0% by weight. If a film forming agent other than nitrocellulose is used, the amount present in the nail polish composition will be approximately
It ranges from 2.0% to about 40.0%. Of course, in selecting a suitable film-forming agent, there is a trade-off between the need to make up the solids content of the composition by the film-forming agent and the need to ensure that the viscosity of the final composition does not exceed about 200 cps. Those skilled in the art will appreciate that it is necessary to strike a balance. The optional modified resin(s) present in the lacquer formulation must be compatible with the desired film forming agent. The primary role of the modified resin is to impart one or more of the following properties to the final composition: improved gloss, improved depth of gloss, improved adhesion, improved film hardness, reduced film shrinkage, improved water resistance and increased solids content. Suitable modified resins include toluenesulfonamide-formaldehyde condensate [Santorite MHP
(Santolite MHP) and/or Santolite
MS-80 (Santolite MS-80)], sucrose benzoate, sucrose acetate isobutyrate, its copolymer mixture, alkyd, polyvinyl acetate, polyester, acrylic resin, formaldehyde condensate, nylon, rosin resin,
Examples include acetate and cyclohexanone. The preferred resin mixture is Santorite MHP
and Santorite MS-80 (80.0% solution) or both and Cellover CV
-160 (80.0% solution in butyl acetate), comprising sucrose benzoate/sucrose acetate isobutyrate copolymer. The amount of total modified resin or mixtures thereof present in the Lutker formulation is 0.0% based on 100% solids.
% to about 50.0%, and the preferred range is about 4.0% to
It is approximately 13.0%. In preferred Lutzker formulations, Santorite MHP is about 0.2% to about 8.0%;
Santorite MS80 is in amounts ranging from about 2.4% to about 5.6% and Cerovar CV160 (80%) is about 1.6%
Present in amounts ranging from ~3.2% (all numbers are
(based on 100% solids). Other optional ingredients present in lacquer formulations include those known and commonly used in such formulations. For specific examples of such ingredients, see plasticizers, such as the review of plasticizers above;
Solvents; Dispersants, e.g. bentone clay; Enhancing compounds, e.g. malic acid, which enhance the properties of the dispersant; Diluents; Natural and/or synthetic pearlescent agents, e.g. guanine; Metal powders and UV stabilizers, e.g. Cyasorb 5411 Examples include. It has been found that it is possible to utilize grades of nitrocellulose up to and including 1/2 second when pearlescent agents are included in the final nail lacquer formulation. Examples of metal powders that can be used include, for example, cosmetic grade aluminum foil or bronze powder. The amount of the metal powder that may be present in the final nail polish composition typically ranges from about 1.0% by weight to about
It is 17.0% by weight. However, the actual amount used will depend on the desired cosmetic effect. However, it will be appreciated that the use of particular ingredients in any particular lacquer formulation will necessarily be based on the particular properties and viscosities desired to be obtained in the final product. Surfactants and flocculants can also be utilized by incorporating them as either part of the lacquer formulation or the final nail polish composition. Surfactants are optional ingredients that have been found to provide a leveling effect and improved wear and flow properties to nail polishes when applied to the nail surface. Suitable surfactants include anionic, cationic, nonionic or amphoteric surfactants that are otherwise compatible with the nail polish ingredients. However, it should be understood that when bentone is used as a suspending agent, anionic surfactants cannot be used since bentone contains a cationic component. Examples of suitable anionic surfactants are well known to those skilled in the art and include compounds within the following classes: Namely, saponification products of fats, sulfated fatty amides, sulfated fatty alcohols, phosphoric acid esters of resin alcohols, aminocarboxylated acids, sulfated rosins, and sulfated nonionic surfactants are included. Specific examples of cationic surfactants include aliphatic amines with fatty chains and quaternary ammonium salts. Specific examples of nonionic surfactants include compounds within the following classifications. Namely, polyoxyethylene alkylphenols, polyoxyethylene alcohols, polyoxyethylene esters of fatty acids, polyoxyethylene alkylamines, polyoxyethylene alkylimides, polyol surfactants, polyalkylene oxide block copolymers, propoxylated surfactants and foams. Examples include hydrogenated alkyl esters. In addition to the above additives, polymeric dispersants may also be included to help homogenize the nail polish, to serve as a pigment dispersant, or to help transform pigment agglomerates into soft precipitates. I can do it. Such dispersants include silicone polymers and eupolymers, polyamides, polyacrylamides and polycarboxylic acids, among others. The amount of surfactant or dispersion component present is 0.0% to approx.
The range is 10.0%. Preferred formulations of the invention, for example, incorporate at least one surfactant or dispersant compound into the formulation in an amount ranging from about 0.01% to about 1.0% by weight. Preferred surfactants include ethoxylated castor oil, such as Nalco 2395 by Nalco Chemicals.
2395”), fluorinated alkyl esters such as 3M’s”Fluorad F.C. 430 (“3M’s”Fluorad
FC430) and Troy Chemical's "Troikid Anticrater 366"
“Troykyd Anticrater 366”). As mentioned above, suspending agents such as bentone are utilized to aid in suspending the pigment. In the absence of such suspending agents, pigments tend to precipitate as dense hard masses. In accordance with the present invention, bentones should not be present in their traditional amounts, ie from about 0.75% to about 1.2%, but rather in significantly lower proportions when used, e.g. It turned out that it should be present at 25%. A preferred Bentone suspension agent is Bentone 27, which can be prepared for lacquer formulations by placing it in a Cowles dissolver with a thinner (75.0%) coated chain dican. Activate this mixer and use Benton 27 chips (25.5
% bentone, 18.0% camphor and 57.0% dry cellulose nitrate). These materials are mixed under high shear conditions until the camphor and cellulose nitrate are dissolved and the bentone is dispersed. A further optional component that can be used in accordance with the present invention is a flocculant. It has been found that when present in the final nail polish formulation, it promotes soft precipitation of pigment. Flocculants are completely absent from conventional nail polish formulations since the ingredients remain in suspension in commercial grade nail polish formulations and therefore the use of a suspending agent such as bentone is generally desirable. It would seem to those skilled in the art that these are mutually exclusive. Some of the preferred flocculants suitable for use include Nuosperse 700 and Polyphos 42-
6 (Lipophos42-6) and the like. Also,
Certain amines or quaternized ammonium compounds such as N,N-bis(2-hydroxyethyl)
It has been found that alkylamines and soybean dimethyl, ethylammonium etho-sulfate, and the like can each be used. If present, the amount of flocculant utilized in the nail polish ranges from 0.0% to about 10.0%, preferably from about 0.1% to about 5.0%, depending on the nature of the flocculant used. The final nail polish is prepared by mixing a suitable pigment paste or slurry with the desired lacquer ingredients.
It has a viscosity below 200cps and a pigment concentration of 0.6% to approx.
Prepared by providing nail polish that is 12.0%. For the preparation of a particular nail polish, those skilled in the art will appreciate that the amounts of ingredients utilized will vary depending on the particular ingredients chosen. For example, darker pigments generally require the use of lower concentrations than lighter pigments to obtain satisfactory coating properties. Notwithstanding this caveat, the following are specific examples of nail polish formulations of the present invention prepared according to conventional nail polish formulation techniques and methods. still,
Examples F, G, H, I, J, O, P and S in Table 1 are reference examples. However, in their preparation, the first manufacturing step is preferably to mix the pigment (shade) paste ingredients with a suitable thinner and any solid resin used, followed by mixing the remaining lacquer ingredients. I proceeded while keeping in mind that it had become clear that

【table】

【table】

[Table] The specific components used in Table 1 are further identified as follows: (1) Santorite MHP - Monsanto's toluenesulfonamide formaldehyde condensate (1) Santorite MS-80 - Monsanto's toluenesulfonamide formaldehyde Condensate 80
% solution (% in formulations are based on 80% solution). (2) Cellovar CV-160 - Cellofilm 80% solution of sucrose benzoate/sucrose acetate-isobutyrate copolymer (% in formulation is based on 80% solution). (3) Troikide 366 - Troi chemical surfactant. (4) Nalco 2395 - Troi Chemical's ethoxylated castor oil. (5) Ceed Paste - Pale Lilac of Example 7 (6) Milbase - Example 1. (7) Pigment base - Example 10. (8) Pigment base - Example 11. (9) Nuo Spark 700 - Nuodex Corporation (10) Lipophos 42-6 - Lipo Chemical Co., Ltd.
Chemical Co.) (11) Bentone 27 Paste - Bentone Chips 25
%, thinner 75%. Table 2 shows nail polish formulations containing primary film forming agents other than nitrocellulose within the scope of the present invention.
Shown below.

【table】

[Table] More detailed identification data (manufacturers, etc.) for the various specific ingredients used in the above formulation are shown below. (1) Eastman Kodak (2) Monsanto's 80% solution of toluenesulfonamide formaldehyde condensate (3) Pale Lilac of Example 7 (4) Rohm &Herds' Acryloid B-
67 (Acryloid B-67) (5) Eastman Kodak (6) Goodyear (7) Monsanto (8) Cellofilm SAIB 80% solution The viscosity of the nail polish formulations disclosed in Tables 1 and 2 is 200 cps not exceed. This viscosity parameter is determined by the Burckfield viscometer model LVT.
Newtonian viscosity measured at 25°C. 100cps
The viscosities of nail polish formulations with viscosities below were determined using spindle No. 1 rotating at 60 rpm. Spindle No. 2 rotating at 60 rpm was used to measure the viscosity of nail polish formulations having a viscosity of 100 cps to 200 cps. Viscosity measurements were taken after vigorous stirring of the nail polish composition to eliminate any thixotropic viscosity. More specifically, formulations A-F, J, K and M-R
All had viscosities less than about 20 cps. Formulation L had a viscosity of approximately 25 cps. Formulations G, H and I
had a viscosity of about 100 cps and Formulation S had a viscosity of about 200 cps. The upper limit of viscosity for the nail polish compositions of the present invention is about 200 cps, but in preferred compositions the viscosity should not exceed about 75 cps;
It has been found that a range of about 10 ps to about 25 cps is preferred. The results of the viscosity of the above-mentioned formulations A to S are summarized in the table below. Example Viscosity (cps) Example Viscosity (cps) 20 20 B 20 L 25 C 20 M 20 D 20 N 20 E 20 O 20 F 20 P 20 G 100 Q 20 H 100 R 20 I 100 S 200 J 20

【table】

TABLE The examples disclosed in Table 3 are directed to novel nail polish formulations containing cosmetic grade metal exfoliated powders such as aluminum powders. The viscosities of each of Formulations A-C were all found to be less than about 40 cps. The novel low viscosity nail polish composition of the present invention is formulated for use with a pen-like dispensing means for applying nail polish to the nail. Referring to FIGS. 1 and 2, which show exploded views of the dispensing means and internal valve means, respectively, the device has a closed end 13 and an external thread 1.
9; a cylindrical sleeve or tube member having an open end 15 formed with a projecting cylindrical tip 17; adapted to fit snugly within the open end of the sleeve 11; a substantially cylindrical case; 23, a substantially cylindrical spring valve assembly 21 consisting of a spring-biased pin 25 and a top hat 27; the interior thereof being formed with internal threads designed to mate with the external threads 19 of the sleeve 11; a substantially cylindrical nib holder 29 further comprising a reservoir portion and a cylindrical washer 31 made of porous material; a shaped tip portion 3 made of substantially fibrous material;
a substantially cylindrical solid nib member 3 having 5;
3; and a pen nib 33 and a pen nib holder 29
It comprises a substantially cylindrical cap 37 adapted to cover both. The novel nail polish of the present invention is contained within sleeve 10 along with one or more mixing balls (not shown). Valve assembly 21 prevents nail polish from leaking. The nail polish is transported to the nib 33 by the tip 35 of the nib 33.
This is done by pressing it against a hard surface and making an indentation. That is, this causes the distal end of the nib 33 to engage the spring-biased pin 2 of the valve assembly 21.
5 to move it, thereby discharging a quantity of nail polish contained in the main body portion of the sleeve 11 of the device into the reservoir portion of the nib holder. In this manner, the nail polish contacts the porous washer in the nib holder and the distal end of the nib and flows to the nib tip.

[Brief explanation of the drawing]

FIG. 1 is an exploded view of the components of the nail polish applicator. FIG. 2 is an exploded view of the valve means used in the applicator.

Claims (1)

[Claims] 1 () Nitrocellulose, cellulose propionate, cellulose acetate butyrate,
Ethyl cellulose, sucrose acetate isobutyrate, polyvinyl acetate, polyvinyl alcohol, thermoplastic acrylic ester,
2 to 40% by weight of a main film forming agent selected from homopolymers and copolymers of alkyl acrylates and methacrylates, urethane polymers, nylons, polyesters and alkyds;
and () at least one conventional pigment material, a water-inert protective colloid that is compatible with the main film-forming agent, and an essentially non-flammable, low-volatility plasticizer that is compatible with the main film-forming agent. an essentially non-flammable, non-explosive mill base comprising 3 to 24% by weight of a shade paste comprising: an essentially non-flammable, non-explosive mill base;
A low viscosity nail polish composition, characterized in that it has a viscosity of 10 to 25 cps and contains 3.10 to 12.36% by weight of pigmented material. 2. Claim 1, wherein the primary film-forming agent is a grade of nitrocellulose having a viscosity of less than 90 cps.
The nail polish composition described in Section 1. 3. Claim 1, wherein the primary film-forming agent is a grade of nitrocellulose having a viscosity of less than 25 cps.
The nail polish composition according to item 1 or 2. 4. A protective colloid in which the milbase is selected from saccharide-based polymers, acrylic polymers, polyesters, alkyd resins, polyamides, cellulose polymers, sulfonated naphthalenes, vinyl polymers, formaldehyde condensates, polyurethanes, substituted pyrrolidone polymers, and polypropylene oxides by weight of 2 to 25 % of the nail polish composition of claim 1. 5. A claim in which the milbase comprises 2 to 25% by weight of a protective colloid selected from toluenesulfonamide formaldehyde condensate, methyl-butyl methacrylate copolymer, sucrose benzoate, ethyl cellulose, esterified pentaerythritol polymer and timer acid-based polyamide resin. The nail polish composition according to item 1. 6 75-98% by weight of a plasticizer whose mill base is selected from N-ethyltoluenesulfonamide, butylbenzyl phthalate, alkylsulfonic acid ester of phenol and tricresyl phosphate
A nail polish composition according to claim 1, comprising: 7. Nail polish composition according to claim 1, wherein the shade paste comprises 20-80% by weight of pigment material and 20-80% by weight of millbase. 8. The nail polish composition according to claim 1, wherein the shade paste comprises nitrocellulose pigment chips. 9 The grade of nitrocellulose is less than 80 cps,
A nail polish composition according to claim 8. 10 Toluene sulfonamide formaldehyde condensate, sucrose benzoate, sucrose acetate isobutyrate, copolymer mixture thereof,
It further comprises 4 to 13% by weight of a modified resin selected from alkyds, polyvinyl acetates, polyesters, acrylics, formaldehyde condensates, nylons, rosin resins, acetates and cyclohexanone. A nail polish composition according to any one of claims 1 to 9. 11. The nail polish composition according to any one of claims 1 to 10, further comprising a surfactant selected from anionic, cationic, nonionic and amphoteric surfactants. 12 further comprising 0.1 to 5% by weight of a flocculant,
A nail polish composition according to any one of claims 1 to 11. 13. The nail polish composition according to any one of claims 1 to 12, further comprising montmorillonite clay as a dispersant. 14. Nail polish composition according to any one of claims 1 to 13, further comprising 1 to 7% by weight of at least one cosmetic grade exfoliated metal powder.