Agent for water-repellent treatment of fibers
AssigneesShin-Etsu Chemical Co., Ltd., Konishi Co., Ltd.
InventorsIchiro Ono, Kenichi Isobe, Hironori Tsukada, Kenji Ueji, Masakazu Komemushi
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Abstract
Disclosed is a water repellent for fibers, comprising an acryl-silicone graft copolymer which is prepared by a radical copolymerization reaction of an organopolysiloxane compound containing one radical polymerizable group with radical polymerizable monomers including an acrylate, a methacrylate or a mixture thereof as a main member.
Claims18
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.sup.1 is a hydrogen atom or a methyl group, R.sup.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.sup.3 is a methyl group or a trimethyl siloxy group, R.sup.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.
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.sup.1 is a hydrogen atom or a methyl group, R.sup.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.sup.3 is a methyl group or a trimethyl siloxy group, R.sup.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.
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.sup.1 is a hydrogen atom or a methyl group, R.sup.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.sup.3 is a methyl group or a trimethyl siloxy group R.sup.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.
Dependencies are inferred from the claim text.