JP4509540B2 - Manufacturing method of abrasive and coating liquid for abrasive - Google Patents

Description

  The present invention relates to an abrasive containing high-strength fibers and abrasive grains.

Conventionally, as an abrasive material, for example, an abrasive cloth paper in which abrasive grains are bonded and fixed on the surface of a substrate such as cloth paper, or an abrasive nonwoven cloth in which a fiber product is solidified with an adhesive mixed with abrasive grains is known. . However, in recent years, there has been a demand for polishing materials having a complex surface, such as precision materials, which have moderate elasticity and durability, as well as excellent cut resistance and abrasion resistance, as the surface treatment of base materials becomes more sophisticated. It has been. These conventional materials are unable to adequately meet such requirements. For example, conventional abrasive cloths and abrasive nonwovens have problems with durability and cannot sufficiently withstand long-term use. In addition, brush materials and the like are required to be improved in polishing performance because they are too soft. Various studies have already been made to solve such problems. For example, an aramid polishing material (Patent Document 1) and the like can be mentioned. However, this abrasive material is not always satisfactory because the adhesion between the fiber product and the abrasive grains is not good, and the abrasive grains may be peeled off due to moisture adhering to the fiber product or the mechanical strength may be reduced. There wasn't.
JP-A-5-239443

An object of the present invention is to provide a method for producing an abrasive having excellent cut resistance, abrasion resistance, and adhesion between a fiber material and abrasive grains, and a coating liquid for the abrasive .

As a result of intensive studies to achieve the above object, the present inventors have succeeded in creating an abrasive containing high-strength fibers, a siloxane polymer, and abrasive grains. Further, the abrasive is highly elastic and durable. The above-mentioned traditional problems at once, knowing that it is excellent in cutting resistance and abrasion resistance, and excellent adhesion between high-strength fibers and abrasive grains. It has been found that this can be solved and that the abrasive is useful as various industrial products described below. The present inventors have further studied and have also found that the abrasive can be produced industrially advantageously.
After obtaining such various findings, the present inventors have further studied and completed the present invention.

That is, the present invention
(1) In the following formula (1), which is a crosslinked product obtained by condensation polymerization of any one or a mixture of two or more of the crosslinkable siloxane compounds represented by the following formulas (2) to (6) A method for producing an abrasive comprising high-strength fibers containing a siloxane polymer and abrasive grains, wherein the high-strength fibers are treated with a coating liquid containing a crosslinkable siloxane compound and abrasive grains, or abrasive The high-strength fibers carrying the grains are treated with a coating liquid containing a crosslinkable siloxane compound, or the abrasive grains are carried on the high-strength fibers treated with a coating liquid containing a crosslinkable siloxane compound. The present invention relates to a method for manufacturing an abrasive.
In formula (1), n represents an integer of 2 to 5000. R ^1, R ^2, R ³ and R ⁴ each represent the same or different hydrogen or an alkyl group having a carbon number of 1 to 4, also, R ² and R ⁴ may be the same for each repeat unit different It may be.
In formula (2), n represents an integer of 2 to 10. R ^1, R ^2, R ³ and R ⁴ are the same or different hydrogen or carbon atoms represents 1-4 alkyl group and, R ² and R ⁴ are independently identical or different for each repeating unit May be.
In formula (3), j and k represent the same or different integers of 2 to 10, respectively. R ⁵ , R ⁶ and R ⁷ each represent the same or different hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁵ , R ⁶ and R ⁷ for each repeating unit. May be the same or different. W represents the same or different monovalent group selected from the group consisting of an alkyl, aryl or silicon compound, which may be substituted.
In the formula (4), R ⁸ represents hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁸ may be the same or different for each group. A represents a monovalent group selected from the group consisting of an alkyl group, an alkoxy group, an alkylene group, an aralkylene group, an arylene group, a polyether, a polyolefin, a polyester, and a polydiene, which may be substituted.
In the formula (5), R ⁹ , R ¹⁰ and R ¹¹ each represent the same or different hydrogen, or an alkyl group or alkenyl group having 1 to 10 carbon atoms. R ¹² may contain an epoxy group or a glycidyl group, an alkyl group or 1 to 10 carbon atoms represents a phenyl group.
In the formula, R ⁹ and R ¹¹ are as defined above. R ¹² and R ¹³ may contain an epoxy group or a glycidyl group, an alkyl group, an alkenyl group or a phenyl group having 1 to 10 carbon atoms.
The present invention also provides:
(2) Coating liquid adjustment process in which the treatment of high-strength fibers with a coating liquid containing a crosslinkable siloxane compound and abrasive grains adjusts the coating liquid containing the crosslinkable siloxane compound and abrasive grains, and the adjusted coating liquid Impregnation step of impregnating high-strength fibers in the coating layer, and heating / drying step of supporting the crosslinked body of the crosslinkable siloxane compound and abrasive grains on the high-strength fibers by heating and drying the impregnated coating liquid (1 ) Manufacturing method of the abrasive described in the above,
About.
(3) Adjustment of a coating process containing a crosslinkable siloxane compound on a high-strength fiber carrying abrasive grains to adjust the carrying process of carrying abrasive grains on a high-strength fiber and a coating liquid containing a crosslinkable siloxane compound A cross-linking siloxane compound by heating and drying a coating liquid adhering to the high-strength fiber together with the abrasive grains, and an impregnation step of impregnating the high-strength fiber carrying the abrasive grains with the coating liquid containing the cross-linking siloxane compound A method for producing an abrasive according to (1), comprising a heating / drying step of supporting the crosslinked body and abrasive grains of high strength fiber on
(4) The coating of the abrasive grains on the high-strength fiber treated with the coating liquid containing the crosslinkable siloxane compound is highly effective in the coating liquid adjustment process for adjusting the coating liquid containing the crosslinkable siloxane compound and the adjusted coating liquid. Impregnation and addition process of impregnating strength fibers and adding abrasive grains;
The polishing according to (1), comprising a heating / drying step of supporting the crosslinked body of the crosslinkable siloxane compound and the abrasive grains on the high-strength fibers by heating / drying the coating liquid adhered to the high-strength fibers together with the abrasive grains. Manufacturing method of materials,
About.

The present invention also provides:
(5) viewed contains a cross-linking siloxane compound and abrasive grains, the crosslinkable siloxane compound, any one or a mixture of two or more crosslinkable siloxane compound represented by the following formula (2) to (6) A coating liquid for abrasives , characterized in that
In formula (2), n represents an integer of 2 to 10. R ^1, R ^2, R ³ and R ⁴ are the same or different hydrogen or carbon atoms represents 1-4 alkyl group and, R ² and R ⁴ are independently identical or different for each repeating unit May be.
In formula (3), j and k represent the same or different integers of 2 to 10, respectively. R ⁵ , R ⁶ and R ⁷ each represent the same or different hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁵ , R ⁶ and R ⁷ for each repeating unit. May be the same or different. W represents the same or different monovalent group selected from the group consisting of an alkyl, aryl or silicon compound, which may be substituted.
In the formula (4), R ⁸ represents hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁸ may be the same or different for each group . A represents a monovalent group selected from the group consisting of an alkyl group, an alkoxy group, an alkylene group, an aralkylene group, an arylene group, a polyether, a polyolefin, a polyester, and a polydiene, which may be substituted.
In the formula (5), R ⁹ , R ¹⁰ and R ¹¹ each represent the same or different hydrogen, or an alkyl group or alkenyl group having 1 to 10 carbon atoms. R ¹² represents an alkyl group having 1 to 10 carbon atoms or a phenyl group, which may contain an epoxy group or a glycidyl group.
In the formula, R ⁹ and R ¹¹ are as defined above. R ¹² and R ¹³ represent an alkyl group, an alkenyl group or a phenyl group having 1 to 10 carbon atoms, which may contain an epoxy group or a glycidyl group.
(6) The coating liquid for abrasives according to (5), further comprising an organic compound containing a metal that serves as a curing catalyst,
About.

  According to the present invention, it is possible to provide an abrasive having excellent cut resistance, abrasion resistance, and adhesion between high-strength fibers and abrasive grains.

  The present invention is an abrasive containing high-strength fibers, a siloxane polymer, and abrasive grains. The abrasive may have any form and shape, and examples thereof include cloth-like materials such as woven fabrics, knitted fabrics, and nonwoven fabrics, rod-like materials, and granular materials. In the present invention, the abrasive is preferably a structure composed of high-strength fibers carrying abrasive grains via a siloxane polymer.

  The high-strength fiber used in the present invention is not particularly limited, and the strength is preferably about 7 cN / dTex or more, more preferably in the range of about 13 cN / dTex to 45 cN / dTex, and about 17 cN / dTex. Most preferably, it is in the range of ˜40 cN / dTex. Such strength can be determined by measuring according to JIS L 1013: 1999 Chemical Fiber Filament Yarn Test Method 8.5.1.

  Examples of the high-strength fibers used in the present invention include wholly aromatic polyamide fibers, aromatic polyester fibers, and heterocyclic aromatic fibers. Mixed fibers or composite fibers obtained by combining these fibers can also be used.

The wholly aromatic polyamide fiber is a fiber having at least one divalent aromatic group which may be generally substituted, and may be any fiber as long as it has at least one amide bond. The well-known thing called a polyamide fiber may be sufficient. For example, an aramid fiber, a polyamideimide fiber (for example, available from Rhône-Poulenc Co., Ltd. under the trade name Kelmer) or a polyimide fiber can be used. In the above, the divalent aromatic group which may be substituted means a divalent aromatic group which may have one or more substituents which are the same or different, and as such a “substituent”, , For example, a halogen atom (eg fluorine, chlorine, bromine or iodine), nitro group, cyano group, hydroxy group, thiol group, sulfo group, sulfino group, mercapto group, phosphono group, eg linear or branched alkyl A group (for example, methyl group, ethyl group, isopropyl group, n-propyl group, n-butyl group, isobutyl group, second butyl group, third butyl group, pentyl group, hexyl group, heptyl group, octyl group, nonyl group, Decyl, undecyl, dodecyl, tridecyl, tetradecyl, pentadecyl, hexadecyl, heptadecyl, octadecyl, nonadecyl, or amine Syl group, etc.), hydroxyalkyl groups (for example, hydroglymethyl group, hydroxyethyl group, 1-hydroxyisopropyl group, 1-hydroxy-n-propyl group, 2-hydroxy-n-butyl group or 1-hydroxy-isobutyl group), Halogenoalkyl groups (eg chloromethyl, dichloromethyl, trichloromethyl, fluoromethyl, difluoromethyl, trifluoromethyl, 2-bromoethyl, 2,2,2-trifluoroethyl, pentafluoroethyl, 3,3,3-trifluoro Propyl, 4,4,4-trifluorobutyl, 5,5,5-trifluoropentyl or 6,6,6-trifluorohexyl), cycloalkyl group (eg cyclopropyl, cyclobutyl, cyclopentyl, cyclohexyl or cycloheptyl) Etc.), Arkeni A group (for example, vinyl, crotyl, 2-pentenyl or 3-hexenyl), a cycloalkenyl group (for example, 2-cyclopentenyl, 2-cyclohexenyl, 2-cyclopentenylmethyl, 2-cyclohexenylmethyl, etc.), an alkynyl group (for example, Ethynyl, 1-propynyl, 2-propynyl, 1-butynyl, 2-pentynyl or 3-hexynyl), oxo group, thioxo group, amidino group, imino group, alkylenedioxy group (for example, methylenedioxy or ethylenedioxy) ), Hydrocarbon groups such as monocyclic or condensed cyclic hydrocarbon groups such as phenyl and biphenyl, bridged cyclic hydrocarbon groups such as 1-adamantyl group and 2-norbornanyl, alkoxy groups (for example, methoxy, ethoxy, Propoxy, isopropoxy, butoxy, isobutoxy, sec-butoxy, tert-butoxy, pentyloxy, neopentyloxy, hexyloxy, etc.), alkylthio groups (eg, methylthio, ethylthio, propylthio, isopropylthio, butylthio, isobutylthio, pentylthio, hexylthio, etc.), carboxyl groups, alkanoyl groups ( For example, formyl; acetyl, propionyl, butyryl, isobutyryl, etc.), alkanoyloxy group (eg, formyloxy; alkyl-carbonyloxy group, such as acetyloxy, propionyloxy, butyryloxy, isobutyryloxy, etc.), alkoxycarbonyl group (eg, methoxycarbonyl) Ethoxycarbonyl, propoxycarbonyl or butoxycarbonyl, etc.), aralkyloxycarbonyl groups (eg benzyloxycarboxy) Thiocarbamoyl group, alkylsulfinyl group (eg methylsulfinyl or ethylsulfinyl etc.), alkylsulfonyl group (eg methylsulfonyl, ethylsulfonyl or butylsulfonyl etc.), sulfamoyl group, mono-alkylsulfamoyl group (eg methyl Sulfamoyl or ethylsulfamoyl), di-alkylsulfamoyl groups (eg dimethylsulfamoyl or diethylsulfamoyl), arylsulfamoyl groups (eg phenylsulfamoyl or naphthylsulfamoyl) An aryl group (eg, phenyl or naphthyl), an aryloxy group (eg, phenyloxy or naphthyloxy), an arylthio group (eg, phenylthio or naphthylthio), an arylsulfinyl group (eg, Phenylsulfinyl or naphthylsulfinyl etc.), arylsulfonyl group (eg phenylsulfonyl or naphthylsulfonyl etc.), arylcarbonyl group (eg benzoyl or naphthoyl etc.), arylcarbonyloxy group (eg benzoyloxy or naphthoyloxy etc.), halogenated An optionally substituted alkylcarbonylamino group (for example, acetylamino or trifluoroacetylamino), an optionally substituted carbamoyl group (for example, -CONR ³ R ⁴ (wherein R ³ and R ⁴ are each A hydrogen atom, a hydrocarbon group which may have a substituent or a heterocyclic group which may have a substituent, or R ³ and R ⁴ may form a ring together with an adjacent nitrogen atom; Good. )), An amino group which may have a substituent (for example, amino, alkylamino, tetrahydropyrrole, piperazine, piperidine, morpholine, thiomorpholine, pyrrole or imidazole), and a substituent. An ureido group (for example, a group represented by the formula —NHCONR ³ R ⁴ (wherein R ³ and R ⁴ are as defined above) and the like), an optionally substituted carboxamide group (For example, a group represented by the formula —NR ³ COR ⁴ (wherein R ³ and R ⁴ are as defined above), a sulfonamide group (for example, a formula —NR ³ SO ₂ R ⁴ (wherein R ³ and R ⁴ are as defined above), a hydroxyl group or a mercapto group which may have a substituent, and a substituent. Good heterocycle (For example, as an atom (ring atom) constituting a ring system, an aromatic heterocyclic group (for example, pyridyl) containing at least one hetero atom selected from oxygen atom, sulfur atom, nitrogen atom and the like in addition to carbon atom) , Furyl, thiazolyl, etc.), or saturated or unsaturated aliphatic heterocyclic group, etc.), or substituents obtained by substituting these substituents as long as they are chemically acceptable. Examples of the “divalent aromatic group” include p-phenylene group, m-phenylene group, naphthylene group, biphenylene group and the like.

In the present invention, the wholly aromatic polyamide fiber is preferably an aramid fiber. The aramid fiber may be a para-aramid fiber or a meta-aramid fiber. The para-aramid fiber used in the present invention may be any fully aromatic polyamide fiber as long as it is a p-phenylene group in which the divalent aromatic group which may be substituted is substituted, for example. It may be a known one called a para-aramid fiber. The above-mentioned p-phenylene group which may be substituted means a p-phenylene group which may have one or more substituents which are the same or different, and the “substituent” has the same meaning as described above. is there. Further, as the para-aramid fibers, such as [available under the trade name "Kevlar ^{TM (KEVLAR TM)"} DuPont Co., from Du Pont-Toray Co., Ltd.] polyparaphenylene terephthalamide fiber that is commercially available or para Teijin shares under the trade name of a copolymer or co polyparaphenylene-3,4'-diphenylene terephthalamide fibers with phenylene terephthalamide and 3,4'-diphenyl-terephthalamide [ "Technora ^TM (TECHNORA ^TM)" Available from the company] or the like. The meta-aramid fiber used in the present invention may be any fully aromatic polyamide fiber as long as the above-described benzene ring bond in the molecular chain is a bond at the meta position. Further, it may be a known one called a meta-aramid fiber. As the meta-aramid fiber, for example, poly-m-phenylene isophthalamide fibers commercially available [- under the trade name "Bruno Mex ^{TM (NOMEX TM)"} available from DuPont Corporation, or available from Teijin Ltd. it is possible to use a trade name "Conex ^TM" (CONEX ^TM) and the like. In the present invention, the aramid fiber described above may be produced and used by a known method or a method analogous thereto.

The fully aromatic polyester fiber may be any fiber as long as it is a fiber having at least one divalent aromatic group which may be generally substituted and having at least one ester bond. There is no particular limitation. The above “optionally substituted divalent aromatic group” has the same meaning as described above. The wholly aromatic polyester fiber may be a known fiber called a wholly aromatic polyester fiber, for example, a self-condensation polymer of parahydroxybenzoic acid, a polyester composed of terephthalic acid and hydroquinone, or parahydroxy It may be a polyester fiber composed of benzoic acid and 6-hydroxy-2-naphthoic acid. In the present invention, such a wholly aromatic polyester fiber can be produced and used by a known method or a method analogous thereto. In the present invention, as the wholly aromatic polyester fiber, for example, a commercial product such as “Vectran ^™ ” available from Kuraray Co., Ltd. can be used.

The heterocyclic aromatic fiber may be any fiber as long as it has at least one divalent aromatic heterocyclic group which may be usually substituted, and is not particularly limited in the present invention. In the above, “optionally substituted divalent aromatic heterocyclic group” means a divalent aromatic heterocyclic group which may have one or more substituents which are the same or different, and The “substituent” is as defined above. The “divalent aromatic heterocyclic group” includes, for example, the same or different heteroatom 1 selected from an oxygen atom, a sulfur atom, a nitrogen atom, a fluorine atom, etc. as an atom (ring atom) constituting the ring system. Or an aromatic heterocyclic group having at least one of four kinds. Examples of the aromatic heterocycle in the divalent aromatic heterocyclic group include aromatic monocyclic heterocycles (for example, furan, thiophene, pyrroline, oxazoline, isoxazoline, thiazoline, isothiazoline, imidazoline, pyrazoline, 1,2,3 -Oxadiazoline, 1,2,4-oxadiazoline, 1,3,4-oxadiazoline, flazanin, 1,2,3-thiadiazoline, 1,2,4-thiadiazoline, 1,3,4-thiadiazoline 1,2,3-triazoline, 1,2,4-triazoline, tetrazoline, pyridine, pyridazine, pyrimidine, pyrazine or triazine, etc.) or an aromatic condensed heterocyclic ring (for example, benzofuran, isobenzofuran, benzo [b] thiophene, Indoline, isoindoline, 1H-indazoline, benzindazoline, Zooxazoline, 1,2-benzisoxazoline, benzothiazoline, benzopyrazine, 1,2-benzisothiazoline, 1H-benzotriazoline, quinoline, isoquinoline, cinnoline, quinazoline, quinoxaline, phthalazine, naphthyridine, purine, buteridine, carbazoline, α-carboline, β-carboline, γ-carboline, acridine, phenoxazine, phenothiazine, phenazine, phenoxatin, thianthrene, phenathrene, phenathroline, indolizine, pyrrolo [1,2-b] pyridazine, pyrazolo [1,5-a ] Pyridine, imidazo [1,2-a] pyridine, imidazo [1,5-a] pyridine, imidazo [1,2-b] pyridazine, imidazo [1,2-a] pyrimidine, 1,2,4-triazolo [4,3- ] Pyridine, 1,2,4-triazolo [4,3-b] pyridazine and the like) and the like. Further, it may be a known one called a heterocyclic aromatic fiber, such as polyparaphenylene benzobisthiazole fiber, polyparaphenylene benzobisoxazole fiber (hereinafter also referred to as PBO fiber) or polybenzimidazole fiber. It's okay. The said heterocyclic aromatic fiber can be manufactured by a well-known method or a method according to it. In the present invention, as the heterocyclic aromatic fiber, for example, a commercially available PBO fiber [available from Toyobo Co., Ltd. under the trade name “Zylon ^™ ”] can be used.

  The high-strength fiber is appropriately selected according to the use of the final product, required performance, fiber manufacturing cost, product processing cost, and the like. This form is also not particularly limited, and may be a short fiber or a long fiber. In the present invention, a mixed fiber obtained by combining the high-strength fibers can be used. In the present invention, an aramid fiber made of a para-based homopolymer known by the trade name of the above KEVLAR (registered trademark of DuPont Co., Ltd.) or Twaron (registered trademark of Teijin Twaron Co., Ltd.) is used. It is preferable to use an amide (hereinafter also referred to as PPTA) as the high-strength fiber.

In the present invention, particularly when an aramid fiber such as PPTA is used as the high-strength fiber, a para-aramid fiber having a moisture content of 15% by mass or more and having no history of drying to a moisture content of 15% by mass or less. Is preferably used. The para-aramid fiber such as PPTA fiber used in the present invention preferably has a moisture content of about 15 to 100% by mass, more preferably about 20 to 60% by mass, and about 25 to 50% by mass. % Is most preferred. The moisture content can be easily calculated from the following equation according to JIS L 1013 Chemical Fiber Filament Yarn Test Method 8.1.1 Moisture Content.
[Equation 1]
Moisture content (mass%) = (WW ′) × 100 / W ′ (Formula 1)
(In the formula, W represents the mass at the time of sampling, and W ′ represents the mass at the time of absolute drying of the sample.)

The para-aramid fiber such as PPTA used in the present invention also has a crystal size (110 direction) of usually about 30 to 55 mm, preferably about 30 to 47 mm, more preferably about 30 to 42 mm, and most preferably about 30. ~ 40cm. The crystal size is determined by a known wide angle X-ray diffraction (diffractometer) method. Specifically, for example, the crystal size is measured using the following apparatus according to the wide-angle X-ray diffraction (diffractometer) method.
X-ray diffractometer Rigaku Denki Co., Ltd. 4036A2 type, X-ray source CuK α ray (using Ni filter), output 35 kV, 15 mA
Goniometer Rigaku Denki Co., Ltd. slit 2mmφ-1 ° -1 °, detector scintillation counter,
Count recording device RAD-C type, manufactured by Rigaku Corporation

The PPTA fiber is made into filament yarn by dissolving PPTA in concentrated sulfuric acid, extruding the viscous solution from a spinneret, and spinning in water through a small space, and then adding 10% by weight sodium hydroxide aqueous solution. After being smoothed and washed with water, it is obtained by drying and heat treatment at a temperature of about 120 to 500 ° C., if desired. The PPAT fiber before drying / heat treatment has a moisture content of about 15 to 200% by mass and a crystal size (110 direction) of less than about 55%, and after drying / heat treatment with a hot roller or the like, the moisture content is about 10% by mass or less, The crystal size (110 direction) is usually about 55 mm or more.
Therefore, in the present invention, PPTA fibers having a moisture content of about 15 to 100% by mass and a fiber crystal size (110 direction) of about 30 to 55 mm are manufactured by appropriately changing heat treatment conditions such as a hot roller. It is preferable to use such fibers. In order to obtain such a moisture content, it is preferable to dry the spun PPTA fiber at about 100 to 150 ° C. for about 5 to 20 seconds.

For such fibers, more specifically, for example, PPTA obtained by a usual method is dissolved in 99.9% by mass of concentrated sulfuric acid to form a spinning dope having a polymer concentration of 19.0% by mass and a temperature of 80 ° C. , Extruded from a base having a pore number of 1000 with a pore diameter of 0.06 mm, passed through an air gap of about 6 mm from the base to the surface of the water, led to water at about 4 ° C. and solidified, led to a Nelson roller, about 500 m / Advance at a rate of minutes, neutralize with about 10% by weight sodium hydroxide aqueous solution, wash with water, and then slightly dry with a hot roller with a surface treatment temperature of about 110 ° C. and wind up on a water-resistant bobbin, A PPTA fiber yarn having a moisture content of about 46% by mass and a moisture content fineness of about 64 tex (absolutely dry converted 44 tex, absolute dry converted single yarn fineness of 0.167 tex) consisting of 263 filaments is obtained. The crystal size (110 direction) of the fibers is about 36 Å.
PPTA fibers having the above moisture content and / or crystal size are available from Toray DuPont Co., Ltd. [Kevlar Development Department (TEL; 03-3245), 1-5-6 Nihonbashi Honmachi, Chuo-ku, Tokyo (10th Central Building). -5082, FAX; 03-3242-3183)].

The siloxane polymer in the present invention is not particularly limited as long as it is a polymer having at least one siloxane bond, such as molecular weight, degree of polymerization, linear or branched form. Examples thereof include chemical cross-linked products obtained by condensation polymerization of cross-linkable siloxane compounds and the like. The crosslinkable siloxane compound, Ri compound der having one of at least a siloxane bond, wherein
(In the formula, n represents an integer of 2 to 10. R ¹ , R ² , R ³ and R ⁴ each represent the same or different hydrogen or an alkyl group having 1 to 4 carbon atoms, and each repeating unit. R ² and R ⁴ may be the same or different.)
A compound represented by the formula
(Wherein j and k each represent the same or different integer of 2 to 10. R ⁵ , R ⁶ and R ⁷ may be the same or different hydrogen, an optionally substituted alkyl group or a substituted one, respectively. Represents a good aryl group, and for each repeating unit, R ⁵ , R ⁶ and R ⁷ may be the same or different, and W consists of an optionally substituted alkyl, aryl or silicon compound. Represents the same or different monovalent group selected from the group)
A compound represented by the formula
(In the formula, R ⁸ represents hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁸ may be the same or different for each group. And represents a monovalent group selected from the group consisting of an alkyl group, an alkoxy group, an alkylene group, an aralkylene group, an arylene group, a polyether, a polyolefin, a polyester, and a polydiene, which may be substituted.
A compound represented by the formula:
(Wherein R ⁹ , R ¹⁰ and R ¹¹ represent the same or different hydrogen, or an alkyl or alkenyl group having 1 to 10 carbon atoms. R ¹² may contain an epoxy group or a glycidyl group. alkyl group or 1 to 10 carbon atoms represents a phenyl group.)
A compound represented by the formula
(Wherein R ⁹ and R ¹¹ are as defined above. R ¹² and R ¹³ may contain an epoxy group or a glycidyl group, an alkyl group having 1 to 10 carbon atoms , an alkenyl group, or Represents a phenyl group.)
Or a mixture thereof.

More specifically, for example, methyltrimethoxysilane (available from Shin-Etsu Chemical Co., Ltd. or Tama Chemical Industry Co., Ltd.), ethyltrimethoxysilane, propyltrimethoxysilane, butyltrimethoxysilane, decyltrimethoxysilane (Shin-Etsu Chemical Co., Ltd.) Co., Ltd.), methyltriethoxysilane (available from Shin-Etsu Chemical Co., Ltd. or Tama Chemical Co., Ltd.), ethyltriethoxysilane, propyltriethoxysilane, butyltriethoxysilane, methyltripropoxysilane or ethyltri propoxy condensate of such silane (can be prepared by a known method such as hydrolysis and condensation of the silane compound), (available from Shin-Etsu chemical Co., Ltd.) full E sulfonyl trimethoxysilane, .gamma. (methacryloxypropyl) trimethoxy Silane .gamma.-glycidoxypropyltrimethoxysilane, aminopropyltrimethoxysilane, beta-(3,4-epoxycyclohexyl) ethyltrimethoxysilane, full E sulfonyl triethoxysilane (available from Shin-Etsu Chemical Co., Ltd.), .gamma. ( (Methacryloxypropyl) triethoxysilane, γ-glycidoxypropyltriethoxysilane, aminopropyltriethoxysilane, vinyltris (β-methoxyethoxy) silane, or their condensates (hydrolysis and condensation of these silane compounds, etc.) Dimethyldimethoxysilane (available from Shin-Etsu Chemical Co., Ltd. or Tama Chemical Industry Co., Ltd.), dimethyldiethoxysilane (available from Shin-Etsu Chemical Co., Ltd. or Tama Chemical Industry Co., Ltd.), diethylmethoxysilane Jie Rudiethoxysilane, diphenyldimethoxysilane (available from Shin-Etsu Chemical Co., Ltd.), diphenyldiethoxysilane (available from Shin-Etsu Chemical Co., Ltd.), methylvinyldimethoxysilane, methylvinyldiethoxysilane or their condensates (these The silane compound can be produced by a known method such as hydrolysis / condensation), or a mixture thereof. Many of the above-mentioned crosslinkable siloxane compounds are widely known to those skilled in the art, and can be produced using a known production method. In this invention, it is preferable that the said crosslinkable siloxane compound is molecular weight about an oligomer, and it is more preferable that it is a number average molecular weight (Mn) of about 200-10000. In the present invention, it is preferable to use a plurality of types of the above siloxane compounds.

The abrasive used in the present invention may be any particle as long as it can be used as an abrasive. Examples of such abrasive materials include diamond (available from Asahi Diamond Industrial Co., Ltd. under the trade name of diamond powder), corundum, emery, garnet, buarstone, chart, quartz, sandstone, chalcedony, spinel Natural abrasives such as slag, quarzite, silicon, dolomite, tripoly, feldspar, pumice, pumice powder or talc, boron carbide, cubic boron nitride, fused alumina, ceramic aluminum oxide, heat treated aluminum oxide, Artificial abrasives such as alumina zirconia, glass, silicon carbide, iron oxide, tantalum carbide, cerium oxide, tin oxide, titanium carbide, synthetic diamond, manganese dioxide, zircon oxide or silicon nitride, or a mixture thereof can be used. Since many of the above-mentioned abrasive grains are widely distributed, commercially available ones may be used as appropriate. For example, Cubitron ^TM available from Minnesota Mining and Manifac Acting Co., Ltd. can be used. The form of the abrasive grains is not particularly limited, but is preferably spherical or substantially spherical. In the present invention, the grain size of the abrasive grains is preferably in the range of about 1 to 10,000 μm, more preferably in the range of about 1 to 1000 μm, and in the range of about 3 to 100 μm. Is most preferred.

  The method for producing the abrasive may be any method as long as the high-strength fibers, the siloxane polymer, and the abrasive grains can be firmly combined. For example, a method of treating high strength fibers with a coating liquid containing a crosslinkable siloxane compound and abrasive grains, a method of treating high strength fibers carrying abrasive grains with a coating liquid containing a crosslinkable siloxane compound, or crosslinking And a method of supporting abrasive grains on high-strength fibers treated with a coating solution containing a functional siloxane compound. Examples of the processing means include impregnation or coating. Hereinafter, each of the above-described methods will be described more specifically.

  The method for treating high-strength fibers with a coating liquid containing the crosslinkable siloxane compound and abrasive grains is not particularly limited. For example, a coating liquid for preparing a coating liquid containing the crosslinkable siloxane compound and abrasive grains. An adjustment step, an impregnation step of impregnating the adjusted coating liquid with high-strength fibers, and then heating and drying the impregnated coating liquid to support the cross-linked siloxane compound and abrasive grains on the high-strength fibers. Examples include a manufacturing method including a heating / drying step. Hereinafter, each of the above steps will be described more specifically.

  The coating liquid adjusting step may use any means as long as the liquid containing the crosslinkable siloxane compound and the abrasive grains can be adjusted. The liquid containing the crosslinkable siloxane compound and the abrasive grains is not particularly limited, and may be a viscous body such as a sol. For example, a liquid in which the crosslinkable siloxane compound is dissolved in a solvent, which is a mixed liquid containing the abrasive grains, or a dispersion liquid in which the compound is dispersed in a dispersion liquid, and the mixed dispersion containing the abrasive grains Liquid and the like. The solvent may be any solvent as long as it can dissolve the crosslinkable siloxane compound. Examples include alkanes, ketones, arenes, chlorinated hydrocarbons, lower alcohols, or mixtures thereof. The means is not particularly limited, and examples thereof include known means such as mixing. In the present invention, if desired, after the crosslinkable siloxane compound is dissolved in the solvent, the crosslinkable siloxane compound is hydrolyzed using water such as pure water, ion-exchanged water or tap water, and then cured. It is preferable to add a catalyst and perform heating and stirring. The curing catalyst is not particularly limited and includes, for example, an acid catalyst or a metal-containing organic compound, and more specifically, for example, an acid catalyst such as hydrochloric acid, benzenesulfonic acid, oxalic acid, nitric acid or formic acid, tetra Examples thereof include propoxy titanate, tetrabutoxy titanate, tetrapropoxy zirconate, tetrabutoxy zirconate, tripropoxy aluminate, aluminum acetylacetonate, metal alcoholate such as dibutyltin diacetate or dibutyltin dilaurate, or a mixture thereof.

  Any means may be used for the impregnation step as long as the high-strength fibers can be impregnated in the coating liquid prepared in the coating liquid adjustment step. Such means is not particularly limited and may be a known means. For example, immersion (for example, dip dyeing method, etc.), spraying, application (for example, textile printing method, etc.), coating, etc. are mentioned. More specifically, for example, as shown in FIG. 1, means for immersing the high-strength fiber 1 in the coating liquid 2 using rollers 3a, 3b, 3c and 3d, and the flow bar meter roll for coating the high-strength fiber with the coating liquid. , Means for applying with a brush, roll coater, die coater or flow coater, etc., or means for spraying the coating liquid onto the high-strength fibers according to the electrospray method (spray method described in US Pat. No. 4,748,043) Etc. In this step, the coating liquid may be diluted with an anhydride (for example, isopropyl alcohol or tetramethoxysilane). The dilution is preferably used when means such as dipping or spraying are used. Usually, when the crosslinkable siloxane compound is combined with a catalyst in the presence of moisture and applied to the high-strength fiber, the reaction occurs very quickly. Therefore, if desired, for example, by adding a low molecular weight alcohol such as methanol or ethanol, trimethyl orthoformate or dimethoxymethane, water can be removed and the above reaction can be suppressed.

  For the heating / drying step, any means may be used as long as the crosslinkable siloxane compound can be cured. Examples of such means include known means such as heating or drying. More specifically, for example, a method of condensing and curing the crosslinkable siloxane compound by using a known means such as a heater or a dryer for the high-strength fiber impregnated with the crosslinkable siloxane compound in the impregnation step. Can be mentioned. In the present invention, the heat treatment temperature is preferably in the range of about 50 ° C to 200 ° C, more preferably in the range of about 50 ° C to 150 ° C, and in the range of about 60 ° C to 110 ° C. Most preferably. In the present invention, the heat treatment time is preferably in the range of about 0 to 100 hours, more preferably in the range of about 0 to 10 hours, and in the range of about 0 to 1 hour. Most preferably. Further, when the heater 4 is used as shown in FIG. 2, the impregnation step and this step can be performed continuously.

  The method for treating the high-strength fibers carrying the abrasive grains with the coating liquid containing the crosslinkable siloxane compound is not particularly limited. For example, the carrying step of carrying the abrasive grains on the high-strength fibers and the crosslinking Adjustment step for adjusting the coating liquid containing the functional siloxane compound, then the impregnation step for impregnating the high-strength fiber carrying the abrasive grains with the coating liquid containing the crosslinkable siloxane compound, and the coating adhered to the high-strength fibers together with the abrasive grains Examples thereof include a method including a heating / drying step of supporting a crosslinked body of the crosslinkable siloxane compound and abrasive grains on a high-strength fiber by heating and drying the liquid. Hereinafter, each of the above steps will be described more specifically.

Any means may be used for the supporting step as long as the abrasive grains can be supported on the high-strength fibers. Examples of such means include a method of adhering the abrasive grains to the high-strength fibers through a binder, and more specifically, for example, a known means (for example, dipping, coating or coating) the binder on the high-strength fibers. And a means for spraying the abrasive grains on the high-strength fibers to which the binder is attached. The binder is not particularly limited and may be a known one. For example, metallic or glassy inorganic binder, phenol resin, aminoplast resin, urethane resin, epoxy resin, ethylenically unsaturated resin, acrylate isocyanate resin, urea-formaldehyde resin, isocyanate Examples thereof include organic binders such as resins, acrylate urethane resins, acrylate epoxy resins, bismaleimide resins, fluorene-modified epoxy resins, polyvinyl alcohol resins or silicone-modified epoxy resins known as elastic adhesives, or mixtures thereof. Moreover, you may use Sumilite resin ^TM etc. which can be obtained from Sumitomo Bakelite Co., Ltd. in Shinagawa-ku, Tokyo as the said binder.

  Any means may be used for the adjustment step as long as the liquid containing the crosslinkable siloxane compound can be adjusted. The liquid containing the crosslinkable siloxane compound is not particularly limited, and may be a viscous material such as a sol. For example, a dispersion liquid in which the above compound is dispersed in a liquid or dispersion liquid in which the crosslinkable siloxane compound is dissolved in a solvent may be mentioned. As the solvent, the same solvents as those described above can be used. The above means may also be similar to the above means.

  For the impregnation step, any means may be used as long as the high-strength fiber carrying the abrasive grains described above can be impregnated in the coating liquid adjusted in the adjustment step. Such means may be the same means as described above. The heating / drying step can be performed in the same manner as described above.

  The method for supporting the abrasive grains on the high-strength fiber treated with the coating liquid containing the crosslinkable siloxane compound is not particularly limited. For example, a coating liquid adjusting step for adjusting the coating liquid containing the crosslinkable siloxane compound, After that, the prepared coating liquid is impregnated with high-strength fibers, and an impregnation / addition process is performed in which abrasive grains are added. Then, the coating liquid adhered to the high-strength fibers together with the abrasive grains is heated and dried to crosslink the above crosslinkable siloxane compound. Examples thereof include a production method including a heating / drying process in which a body and abrasive grains are supported on high-strength fibers. Hereinafter, each of the above steps will be described more specifically.

The adjustment process is adjusted in the same manner as described above except that the abrasive grains are not included. For the impregnation / addition step, any means may be used as long as the coating liquid adjusted in the adjustment step is impregnated with the high-strength fiber and abrasive grains can be added. Examples of such means include known means such as spraying or planting. More specifically, for example, a means of impregnating the coating liquid prepared in the adjustment step with the high-strength fibers and then spraying the abrasive grains onto the coating liquid impregnated with the high-strength fibers can be mentioned. Further, immediately after spinning of the high-strength fiber, the high-strength fiber can be impregnated with the coating liquid. The heating / drying step is performed in the same manner as described above.
In the present invention, when the abrasive produced by the above production method is obtained in a fibrous form, the fibrous abrasive may be processed into a fiber product as described below, for example, according to means known per se.

  In the present invention, the abrasive material of the present invention may be produced by subjecting a fiber product containing the above-mentioned high-strength fiber as the high-strength fiber used in the above-described production method to each step described above. The fiber product may be any product as long as the product includes the high-strength fiber. The form of the fiber product is not particularly limited. For example, the fiber is obtained from the above-described high-strength fiber, and is subjected to primary processing such as a yarn in which the fibers are aligned or twisted, a string such as a braid, cotton, a fabric And non-woven fabric such as felt or paper, or rope or cord. Furthermore, even the secondary processed product obtained by processing with these primary processed products alone or a combination thereof, or a combination including other materials such as other resins and metals can be cited as the fiber product.

  The fiber product can be easily made from high-strength fibers using known means. The means for producing such a textile product is not particularly limited, and may be a known means. Hereinafter, the preferable illustration of the preparation method in case the said fiber product is a braid, a textile fabric, a knitted fabric, or a nonwoven fabric is shown below.

When the textile product is a braid, a desired braid is produced by using a known braiding machine (string making machine) as a raw material by a braiding method such as round punching, square punching, or flat punching. be able to. More specifically, for example, a braid is obtained by preparing four filaments and arranging the right and left yarns alternately in the middle. The number of filaments used for the string is not limited to 4, and a desired number such as 8, 12, or 16 may be used.
When the textile product is a woven fabric, for example, using a known loom (jet loom or sulzer loom), a desired woven fabric such as plain weave, twill weave, satin weaving or oblique weaving is manufactured and subjected to the above steps. Thus, the abrasive of the present invention can be produced.

When the textile product is a knitted fabric, a desired knitted fabric such as a flat knitting, a flat knitting or a rubber knitting can be produced using a known knitting machine (such as a warp knitting machine or a flat knitting machine).
When the fiber product is a non-woven fabric, for example, using a known non-woven fabric machine, a desired non-woven fabric is made to have high strength by a dry method such as a wet method, a tow opening method, a spun bond method, a melt blow method, or a flash spinning method. The abrasive of the present invention can be produced by manufacturing from a fiber and subjecting it to each of the above steps. For example, when the wet method is used, the wet non-woven fabric can be produced by cutting the fibrous high-strength fiber short, making paper with a paper machine, and drying.

  In the present invention, the fiber product can be used as the high-strength fiber, and the abrasive of the present invention can be produced in the same manner as the above-described abrasive production method. For example, a means for immersing the high-strength fiber 1 in the coating liquid 2 using the rollers 3a, 3b, 3c and 3d as shown in FIG. 1 is described in more detail as the rollers 3a, 3b, 3c and 3d is used to immerse the fiber product 5 in the coating liquid 2. The impregnation step as shown in FIG. 2 and the heating / drying step may be combined to form a continuous step as shown in FIG.

  Moreover, in this invention, you may use the composite material containing the said high strength fiber as a high strength fiber used with the said manufacturing method. Such a composite material in the present invention may be any composite material as long as it comprises the high-strength fiber or the fiber product, and is not particularly limited in the present invention. The composite material includes those in which the resin-coated high-strength fiber or the fiber product includes further components. The shape of the composite material is not particularly limited and may take any form. It may be flat or bent. Examples of the bent shape include a U shape, an L shape, a U shape, a spiral shape, or a polygon such as a triangle, a quadrangle, a pentagon, or a hexagon. However, it is not restricted to these, It is possible to use what was bent in various shapes as desired by using a well-known means (for example, cutting etc.). The above-mentioned “further constituent element” may be anything, and may be a low molecule or a polymer. As further constituents, for example, resins, metals, solvents, dispersion media, inorganic or organic fillers, antioxidants, heat stabilizers, UV absorbers, lubricants, waxes, colorants, crystallization accelerators or mixtures thereof, etc. Is mentioned.

  The resin is not particularly limited in the present invention. For example, phenol resin, epoxy resin, polyester resin, polyamide resin, polyimide resin, polyamide amino resin, PES (polyether sulfone) resin, PEEK (polyether ether ketone) ) Resin, or thermosetting resin such as CP resin (for example, crosslinked polyesteramide or crosslinked polyaminoamide), polyethylene terephthalate (PET) resin, polybutylene terephthalate (PBT) resin, polytrimethylene terephthalate (PTT) resin, polyethylene naphthalate Polyester resins such as phthalate (PEN) resin and liquid crystal polyester resin, polyolefin resins such as polyethylene (PE) resin, polypropylene (PP) resin and polybutylene resin, styrenic resin, poly Ximethylene (POM) resin, polyamide (PA) resin, polycarbonate (PC) resin, polymethylene methacrylate (PMMA) resin, polyvinyl chloride (PVC) resin, polyphenylene sulfide (PPS) resin, polyphenylene ether (PPE) resin, polyimide ( PI) resin, polyamideimide (PAI) resin, polyetherimide (PEI) resin, polysulfone (PSU) resin, polyethersulfone resin, polyketone (PK) resin, polyetherketone (PEK) resin, polyetheretherketone (PEEK) ) Resin, polyarylate (PAR) resin, polyether nitrile (PEN) resin, phenol (novolac type, etc.) resin, phenoxy resin, fluororesin, polystyrene, polyolefin, polyurethane, poly Thermoplastic elastomers such as steal, polyamide, polybutadiene, polyisoprene, or fluorine, or thermoplastic resins such as copolymers or modified products thereof, copolymer resins or modified resins, or these resins Or / and resin etc. which blended 2 or more types of elastomers are mentioned.

  Examples of the metals include zinc, cadmium, mercury, aluminum, germanium, gallium, indium, thallium, tin, lead, antimony, bismuth, lithium, sodium, potassium, rubidium, cesium, beryllium, magnesium, calcium, strontium, barium, scandium. Yttrium, lanthanum, titanium, zirconium, hafnium, vanadium, niobium, tantalum, chromium, molybdenum, tungsten, manganese, technetium, rhenium, iron, ruthenium, osmium, cobalt, rhodium, iridium, nickel, palladium, platinum, copper, silver , One metal selected from gold, silicon and cerium, or an alloy thereof.

  The composite material can be produced, for example, by treating the high-strength fiber or / and the fiber product with the resin or the metal. In order to treat the high-strength fiber or / and the fiber product with the resin or the metal, for example, when the resin is used, the other resin may be melted by heat, formic acid, cresol, cresol substitute, if desired. Or, it is dissolved in an organic solvent such as hexafluoroisopropanol or an inorganic medium such as concentrated sulfuric acid or concentrated hydrochloric acid, and the resin-coated high-strength fiber or fiber product is usually impregnated with the other resin, and then impregnated. The cured resin may be cured. As a method for impregnation and curing, for example, a known method such as a hand lay-up method, a preformed matched die molding method, a cold press method, a resin injection method, an SMC method, a BMC method, or a pultrusion method can be used.

  The manufactured or processed abrasive is excellent in cut resistance, abrasion resistance, and adhesiveness between high-strength fibers and abrasive grains, and has various uses, and can be employed in any industry. Examples of such applications include stone polishing applications, civil engineering and building material polishing applications, metal polishing applications, plastic polishing applications, precision processing applications, edge polishing applications or medical applications (including dental applications).

  EXAMPLES Hereinafter, although this invention is demonstrated more concretely using an Example, this invention is not limited to these Examples.

Example 1
Both warp and weft yarns are 20th-ply polyparaphenylene terephthalamide fibers (Kevlar (registered trademark) manufactured by Toray DuPont Co., Ltd.), with a weaving density of warp 58 x weft 47 / 吋, and a weave of 230 g / m ³ 50 g of phenol resin (Sumitite Resin ^TM manufactured by Sumitomo Bakelite Co., Ltd.) is applied to the fabric, and 100 g of abrasive grains (Minnesota Mining and Maniyu Actuating Co., Ltd. Cubitron ^TM ) are sprayed on the surface to carry the abrasive grains. A finished woven fabric was produced.

(Example 2)
200 g of methoxysilane oligomer (polymerization degree 3 to 4 mer) and 50 g of polydimethyldimethoxysilane were added to 735 g of isopropyl alcohol and stirred, and then 15 g of titanium tetrabutoxide was added and stirred sufficiently to prepare a coating solution. The woven fabric carrying the abrasive grains in Example 1 is immersed in this silane-based coating solution, squeezed with a mangle at a pressure of ² kg / cm ² and then air-dried, and further 200 ° C. using a dryer manufactured by Tabai Co., Ltd. After being heat-treated for 2 minutes, an abrasive according to the present invention was obtained. At this time, the adhesion rate of the siloxane polymer was 8.7% by mass.

(test)
The abrasive prepared in Example 2 was cut into a strip shape having a length of 180 mm, a width of 20 mm, and a thickness of 1.1 to 1.3 mm so that the fiber axis direction was the longitudinal direction, and this was used as a tensile test piece. The flexural modulus was determined using an Instron universal testing machine under conditions of a displacement speed of 1.00 mm / min, a span distance of 80 mm, and room temperature. Moreover, the textile fabric which was not processed with the coating liquid produced in Example 1 as a comparative example was measured like the above. The measurement results are shown in Table 1.

  According to the present invention, it is possible to provide an abrasive having excellent cut resistance, abrasion resistance, and adhesion between high-strength fibers and abrasive grains.

It is a schematic diagram which shows one of the specific examples of the immersion means preferably used in the impregnation process of this invention. The aspect of the continuous process of the preferable impregnation process and heating process in this invention is represented. It is a schematic diagram which shows the specific example of the immersion means preferably used in the impregnation process of this invention in the case of using textile products, such as a textile fabric which consists of high strength fibers as a high strength fiber. (a) is a top view, (b) is a side view. The aspect of the continuous process of the preferable impregnation process and heating process in this invention in the case of using textile products, such as a textile fabric, which consists of a high-strength fiber as a high-strength fiber is represented. (a) is a top view, (b) is a side view.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 High strength fiber 2 Coating liquid 3 (3a, 3b, 3c, 3d) Roller 4 Heater 5 Textile product

Claims (6)

Siloxane represented by the following formula (1), which is a crosslinked product obtained by condensation polymerization of any one or a mixture of two or more of the crosslinkable siloxane compounds represented by the following formulas (2) to (6) A method for producing an abrasive comprising a high-strength fiber containing a polymer and abrasive grains,
The high-strength fiber is treated with a coating liquid containing the cross-linkable siloxane compound and the abrasive grains, or the high-strength fiber carrying the abrasive grains is treated with a coating liquid containing the cross-linkable siloxane compound. Or the abrasive is supported on the high-strength fibers treated with the coating liquid containing the crosslinkable siloxane compound.
In formula (1), n represents an integer of 2 to 5000. R ^1, R ^2, R ³ and R ⁴ each represent the same or different hydrogen or an alkyl group having a carbon number of 1 to 4, also, R ² and R ⁴ may be the same for each repeat unit different It may be.
In formula (2), n represents an integer of 2 to 10. R ^1, R ^2, R ³ and R ⁴ are the same or different hydrogen or carbon atoms represents 1-4 alkyl group and, R ² and R ⁴ are independently identical or different for each repeating unit May be.
In formula (3), j and k represent the same or different integers of 2 to 10, respectively. R ⁵ , R ⁶ and R ⁷ each represent the same or different hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁵ , R ⁶ and R ⁷ for each repeating unit. May be the same or different. W represents the same or different monovalent group selected from the group consisting of an alkyl, aryl or silicon compound, which may be substituted.
In the formula (4), R ⁸ represents hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁸ may be the same or different for each group. A represents a monovalent group selected from the group consisting of an alkyl group, an alkoxy group, an alkylene group, an aralkylene group, an arylene group, a polyether, a polyolefin, a polyester, and a polydiene, which may be substituted.
In the formula (5), R ⁹ , R ¹⁰ and R ¹¹ each represent the same or different hydrogen, or an alkyl group or alkenyl group having 1 to 10 carbon atoms. R ¹² may contain an epoxy group or a glycidyl group, an alkyl group or 1 to 10 carbon atoms represents a phenyl group.
In the formula, R ⁹ and R ¹¹ are as defined above. R ¹² and R ¹³ may contain an epoxy group or a glycidyl group, an alkyl group, an alkenyl group or a phenyl group having 1 to 10 carbon atoms. The treatment of the high-strength fiber with a coating liquid containing the crosslinkable siloxane compound and abrasive grains,
A coating liquid adjusting step for adjusting a coating liquid containing the crosslinkable siloxane compound and abrasive grains;
An impregnation step of impregnating the adjusted coating liquid with the high-strength fibers;
The manufacturing method of the abrasive | polishing material of Claim 1 including the heating and drying process of making the said high intensity | strength fiber carry | support the crosslinked body of the said crosslinkable siloxane compound and the said abrasive grain by heating and drying the said impregnated coating liquid. Method. The treatment with the coating liquid containing the crosslinkable siloxane compound of the high-strength fibers carrying the abrasive grains,
A supporting step of supporting the abrasive grains on the high-strength fibers;
An adjustment step of adjusting the coating liquid containing the crosslinkable siloxane compound;
An impregnation step of impregnating the high-strength fiber carrying the abrasive grains with a coating liquid containing the crosslinkable siloxane compound;
A heating / drying step of supporting the crosslinked body of the crosslinkable siloxane compound and the abrasive grains on the high-strength fibers by heating and drying the coating liquid adhered to the high-strength fibers together with the abrasive grains. A method for producing an abrasive according to 1. Supporting the abrasive grains on the high-strength fibers treated with the coating liquid containing the crosslinkable siloxane compound,
A coating liquid adjusting step of adjusting the coating liquid containing the crosslinkable siloxane compound;
Impregnation / addition step of impregnating the adjusted coating liquid with the high-strength fiber and adding the abrasive grains;
A heating / drying step of supporting the crosslinked body of the crosslinkable siloxane compound and the abrasive grains on the high-strength fibers by heating / drying the coating liquid adhered to the high-strength fibers together with the abrasive grains. Item 2. A method for producing an abrasive according to Item 1. Look containing a cross-linking siloxane compound and abrasive grains, wherein the crosslinkable siloxane compounds are any one or a mixture of two or more crosslinkable siloxane compound represented by the following formula (2) to (6) A coating liquid for abrasives characterized by the above.
In formula (2), n represents an integer of 2 to 10. R ^1, R ^2, R ³ and R ⁴ are the same or different hydrogen or carbon atoms represents 1-4 alkyl group and, R ² and R ⁴ are independently identical or different for each repeating unit May be.
In formula (3), j and k represent the same or different integers of 2 to 10, respectively. R ⁵ , R ⁶ and R ⁷ each represent the same or different hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁵ , R ⁶ and R ⁷ for each repeating unit. May be the same or different. W represents the same or different monovalent group selected from the group consisting of an alkyl, aryl or silicon compound, which may be substituted.
In the formula (4), R ⁸ represents hydrogen, an optionally substituted alkyl group or an optionally substituted aryl group, and R ⁸ may be the same or different for each group . A represents a monovalent group selected from the group consisting of an alkyl group, an alkoxy group, an alkylene group, an aralkylene group, an arylene group, a polyether, a polyolefin, a polyester, and a polydiene, which may be substituted.
In the formula (5), R ⁹ , R ¹⁰ and R ¹¹ each represent the same or different hydrogen, or an alkyl group or alkenyl group having 1 to 10 carbon atoms. R ¹² represents an alkyl group having 1 to 10 carbon atoms or a phenyl group, which may contain an epoxy group or a glycidyl group.
In the formula, R ⁹ and R ¹¹ are as defined above. R ¹² and R ¹³ represent an alkyl group, an alkenyl group or a phenyl group having 1 to 10 carbon atoms, which may contain an epoxy group or a glycidyl group. 6. The abrasive coating liquid according to claim 5, further comprising an organic compound containing a metal that serves as a curing catalyst.