US 11,655,361 B2
Thermoplastic resin composition and thermoplastic resin molded article
Joon Hwi Jo, Daejeon (KR); Seong Lyong Kim, Daejeon (KR); Tae Hoon Kim, Daejeon (KR); Dae Woo Lee, Daejeon (KR); and Jae Bum Seo, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/55,957
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Feb. 10, 2020, PCT No. PCT/KR2020/001835
§ 371(c)(1), (2) Date Nov. 16, 2020,
PCT Pub. No. WO2020/171453, PCT Pub. Date Aug. 27, 2020.
Claims priority of application No. 10-2019-0019094 (KR), filed on Feb. 19, 2019; and application No. 10-2020-0014203 (KR), filed on Feb. 6, 2020.
Prior Publication US 2021/0221996 A1, Jul. 22, 2021
Int. Cl. C08L 51/04 (2006.01); C08L 25/12 (2006.01); C08L 25/14 (2006.01); C08L 33/12 (2006.01); C08K 5/54 (2006.01)
CPC C08L 51/04 (2013.01) [C08K 5/54 (2013.01); C08L 25/12 (2013.01); C08L 25/14 (2013.01); C08L 33/12 (2013.01); C08L 2201/08 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01)] 12 Claims
 
1. A thermoplastic resin composition comprising:
a first copolymer including an acrylic graft copolymer;
a second copolymer including an alkyl-substituted styrene-based monomer unit, a vinyl cyanide-based monomer unit, and a methacrylate-based monomer unit; and
a third copolymer including an alkyl-unsubstituted styrene-based monomer unit, a vinyl cyanide-based monomer unit, and a (meth)acrylate-based monomer unit,
wherein the thermoplastic resin composition includes, with respect to 100 parts by weight of the sum of the first copolymer, the second copolymer, and the third copolymer:
20 to 50 parts by weight of the first copolymer;
20 to 45 parts by weight of the second copolymer; and
15 to 40 parts by weight of the third copolymer.