US5612433A — Agent for water-repellent treatment of fibers

Claim 1

Independent Claim 153 words

An acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR7## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group, R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 30-80% by weight of the copolymer is formed from the organopolysiloxane compound and 20-70% by weight of the copolymer is formed from the radical polymerizable monomers, with the proviso that the radical polymerizable monomers do not include methacrylic acid.

Claim 2

Dependent Claim 153 words

An acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR7## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group, R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 30-80% by weight of the copolymer is formed from the organopolysiloxane compound and 20-70% by weight of the copolymer is formed from the radical polymerizable monomers, with the proviso that the radical polymerizable monomers do not include methacrylic acid.

Claim 3

Dependent Claim 24 words

A copolymer according to claim 1, wherein the radical polymerizable monomers comprise at least 50% by weight of acrylate, methacrylate or a mixture thereof.

Claim 4

Dependent Claim 35 words

A copolymer according to claim 2, wherein at least one acrylate or methacrylate is an alkyl acrylate or methacrylate, a hydroxyalkyl acrylate or methacrylate, a fluoroalkyl acrylate or methacrylate or an epoxy-containing acrylate or methacrylate.

Claim 5

Dependent Claim 26 words

A compolymer according to claim 1, wherein the graft copolymer has a weight average molecular weight ranging from 5,000 to 500,000, reduced to a polystyrene basis.

Claim 6

Dependent Claim 28 words

A water repellent composition for fibers, containing the acryl-silicone graft copolymer defined by claim 1 in an organic solvent in a concentration of 0.5 to 20% by weight.

Claim 7

Dependent Claim 30 words

A water repellent composition according to claim 5, wherein the solvent is at least one solvent chosen from the group consisting of aromatic hydrocarbons, ketones, esters, alcohols and aliphatic hydrocarbons.

Claim 8

Dependent Claim 27 words

A water-base water repellent composition for fibers, containing in water the acryl-silicone copolymer defined by claim 1 in a concentration ranging from 0.5 to 20% by weight.

Claim 9

Dependent Claim 51 words

An aerosol-form water repellent for fibers, comprising the acryl-silicone copolymer defined by claim 1 in a proportion ranging from 0.5 to 20% by weight, an organic solvent in a proportion ranging from 30 to 98.5% by weight and a jet gas in a proportion ranging from 1 to 50% by weight.

Claim 10

Dependent Claim 21 words

An aerosol-form water repellent according to claim 8, wherein the organic solvent contains at least 80% by weight of an alcohol.

Claim 11

Dependent Claim 18 words

An aerosol-form water repellent according to claim 9, wherein the alcohol is ethanol, isopropanol or a mixture thereof.

Claim 12

Dependent Claim 33 words

An aerosol-form water repellent according to claim 8, wherein the jet gas is at least one gas chosen from the group consisting of propane, butane, dimethyl ether, carbonic acid gas and nitrogen gas.

Claim 13

Dependent Claim 12 words

The copolymer of claim 4, wherein n is from 6 to 100.

Claim 14

Dependent Claim 23 words

The copolymer of claim 1, wherein the weight ratio of the organopolysiloxane compound to the radical polymerizable monomers is from 30:70 to 80:20.

Claim 15

Dependent Claim 39 words

The copolymer of claim 1, wherein the radical copolymerization reaction is conducted in the presence of a peroxide or azo compound radical polymerization initiator by a solution polymerization method, emulsion polymerization method, suspension polymerization method or bulk polymerization method.

Claim 16

Dependent Claim 22 words

The copolymer of claim 1, wherein the weight ratio of the organopolysiloxane compound to the radical polymerizable monomers is 50:50 to 80:20.

Claim 17

Dependent Claim 23 words

The copolymer of claim 1, wherein the copolymer has a weight average molecular weight of 10,000 to 100,000, reduced to a polystyrene basis.

Claim 18

Dependent Claim 160 words

A water repellent composition for fibers comprising an acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR8## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group, R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 30-80% of the copolymer is formed from the organopolysiloxane compound and 20 to 70% of the copolymer is formed from the radical polymerizable monomers, and wherein the composition is capable of providing a water repellent coating on a fiber.

Claim 19

Dependent Claim 160 words

A water repellent composition for fibers comprising an acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR8## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group, R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 30-80% of the copolymer is formed from the organopolysiloxane compound and 20 to 70% of the copolymer is formed from the radical polymerizable monomers, and wherein the composition is capable of providing a water repellent coating on a fiber.

Claim 20

Dependent Claim 140 words

An acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR9## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 50-80% by weight of the copolymer is formed from the organopolysiloxane compound and 20-50% by weight of the copolymer is formed from the radical polymerizable monomers.

Claim 21

Dependent Claim 140 words

An acryl-silicone copolymer prepared by the radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group of the formula ##STR9## wherein R 1 is a hydrogen atom or a methyl group, R 2 is a divalent hydrocarbon group containing 1 to 12 carbon atoms the carbon chain of which optionally contains oxygen atoms to provide ether groups, R 3 is a methyl group or a trimethyl siloxy group R 4 is a monovalent hydrocarbon group containing 1 to 4 carbon atoms, n is an integer of 3-200, and m is an integer of 1-3, with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member, wherein 50-80% by weight of the copolymer is formed from the organopolysiloxane compound and 20-50% by weight of the copolymer is formed from the radical polymerizable monomers.

Annuity Stage	Window Opens	Payment Deadline	Surcharge Period Until	Estimated Fee	Status
3.5 Years (Year 4)	2000-03-17	2000-09-16	2001-03-18	$2000.00	Window Closed / Lapsed
7.5 Years (Year 8)	2004-03-17	2004-09-16	2005-03-18	$3760.00	Window Closed / Lapsed
11.5 Years (Year 12)	2008-03-17	2008-09-16	2009-03-18	$7700.00	Window Closed / Lapsed

Agent for water-repellent treatment of fibers

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