C - Chemistry – Metallurgy – 08 – L
Patent
C - Chemistry, Metallurgy
08
L
C08L 83/10 (2006.01) C08L 51/04 (2006.01) C08L 51/08 (2006.01) C08L 77/00 (2006.01)
Patent
CA 2047526
ABSTRACT OF THE DISCLOSURE A thermoplastic resin composition comprising a blend obtained by blending the following components (A), (B) and (C): (A) 10 to 90 parts by weight of a polyamide, (B) 90 to 10 parts by weight of a compound rubber graft copolymer obtained by graft-polymerizing 5 to 13 parts by weight of at least one vinyl monomer (B-2) select- ed from the group consisting of vinyl cyanide monomers, aromatic vinyl monomers and (meth)acrylate monomers onto 87 to 95 parts by weight of a compound rubber (B-1), the total amount of (B-1) and (B-2) being 100 wt.% based on the compound rubber graft copolymer, the compound rubber (B-1) consisting of 10 to 90 wt.% of a polyorganosiloxane rubber component (b-1) and 90 to 10 wt.% of a polyalkyl (meth)acrylate rubber component (b-2), the total amount of (b-1) and (b-2) being 100 wt.% based on the compound rubber (B-1), and the compound rubber (B-1) having such a structure that the both rubber components are not separable from each other, and (C) 0 to 80 parts by weight of a polymer obtained by polymerizing at least one member selected from the group consisting of vinyl cyanide monomers, aromatic vinyl monomers and (meth)acrylate monomers, so that the total amount of the components (A), (B) and (C) is 100 parts by weight, and (D) 0 to 100 parts by weight of a reinforcing filler. According to the present invention, by blending the afore-mentioned particular compound rubber graft co- polymer, it is possible to give impact resistance and heat stability to a polyamide resin excellent in proper- ties such as chemical resistance, moldability and abrasion resistance, and also to give excellent appearance to molded products of the polyamide resin. Consequently, the resin composition of the present invention is very useful as a material for automobile parts, electric and electronic parts, etc.
Mori Hiroshi
Shigemitsu Hideyuki
Goudreau Gage Dubuc
Mitsubishi Rayon Co. Ltd.
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