US 12,460,035 B2
Thermoplastic resin composition, method of preparing the same, and molded article including the same
Hyungseop Shim, Daejeon (KR); Seokgoo Jang, Daejeon (KR); and Ki Young Nam, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/640,282
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jul. 19, 2021, PCT No. PCT/KR2021/009254
§ 371(c)(1), (2) Date Mar. 3, 2022,
PCT Pub. No. WO2022/080631, PCT Pub. Date Apr. 21, 2022.
Claims priority of application No. 10-2020-0134309 (KR), filed on Oct. 16, 2020; and application No. 10-2021-0093001 (KR), filed on Jul. 15, 2021.
Prior Publication US 2022/0411557 A1, Dec. 29, 2022
Int. Cl. C08F 279/02 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 220/44 (2006.01); C08F 293/00 (2006.01); C08G 65/26 (2006.01); C08G 69/00 (2006.01); C08K 5/00 (2006.01); C08K 5/098 (2006.01)
CPC C08F 279/02 (2013.01) [C08F 212/08 (2013.01); C08F 220/14 (2013.01); C08F 220/44 (2013.01); C08F 293/00 (2013.01); C08G 65/2612 (2013.01); C08G 69/00 (2013.01); C08K 5/0041 (2013.01); C08K 5/098 (2013.01)] 14 Claims
 
1. A thermoplastic resin composition, comprising:
100 parts by weight of a base resin consisting of 30 to 50% by weight of a (meth)acrylic acid alkyl ester compound-conjugated diene rubber-aromatic vinyl compound-vinyl cyanide compound graft copolymer and 50 to 70% by weight of a (meth)acrylic acid alkyl ester compound-aromatic vinyl compound-vinyl cyanide compound non-graft copolymer;
8 to 15 parts by weight of a polyether-amide block copolymer;
0.2 to 0.9 parts by weight of a metal stearate; and
0.001 to 0.006 parts by weight of an organic pigment,
wherein the graft copolymer is a graft copolymer comprising 30 to 70% by weight of conjugated diene rubber having an average particle diameter of 150 to 450 nm, 20 to 40% by weight of a (meth)acrylic acid alkyl ester compound, 5 to 20% by weight of an aromatic vinyl compound, and 1 to 15% by weight of a vinyl cyanide compound, and
the non-graft copolymer is a copolymer comprising 60 to 80% by weight of a (meth)acrylic acid alkyl ester compound, 15 to 35% by weight of an aromatic vinyl compound, and 1 to 15% by weight of a vinyl cyanide compound.