C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
400/3029
C08L 67/06 (2006.01) C08F 287/00 (2006.01) C08F 299/04 (2006.01) C08K 5/14 (2006.01)
Patent
CA 1262785
Abstract of the Disclosure Disclosed herein is a low shrinkable unsatu- rated polyester resin composition consisting of (A) 20-70% by weight of an unsaturated polyester; (B) 28-60% by weight of a monomer polymerizable with the above unsaturated polyester; (C) 2-20% by weight of a block copolymer mixture defined in the following, and in which a mixture of the monomer (B) and the block copolymer mixture (C) is in a non-aqueous dispersion state; and a mixture of the above polyester (A), the monomer (B) and the block copolymer mixture (C) is in a non-aqueous dispersion state, said block copolymer mixture is a copolymer obtained by polymerizing either one of monomers defined below in (a) and (b) (hereinafter referred to as monomer (a) and monomer (b) respectively) or a mixture thereof by using as a polymerization initiator a polymeric peroxide represented by the general formula: (I) Image in which R1 represents a divalent branched hydrocarbon group having 10-30 carbons, and R2 and R3 represent a hydrogen atom, a hydroxyl group or an alkali metal; and the average polymerization degree n is 2-40, and it is used to obtain a polymer (a first polymerization reaction) having peroxy bonds in its molecule, and block-polymerizing this polymer with the monomer or a mixture of the monomers which has not been used in the first polymerization reaction. (a) A monomer or a monomer mixture consisting of 70-100% by weight of styrene monomer and 30-0% by weight of a monomer polymerizable therewith (b) A monomer or a mixture of monomers consisting of 70-100% by weight of a C1-4 alkyl ester of acrylic acid or methacrylic acid and 30-0% by weight of a monomer polymerizable therewith.
471038
Fukushi Kyosuke
Moriya Yasuo
Nakayama Masaharu
Suzuki Nobuyoshi
Nippon Oil & Fats Co. Ltd.
Ogilvy Renault Llp/s.e.n.c.r.l.,s.r.l.
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