US 12,384,913 B2
Thermoplastic resin composition and molded article manufactured using the same
Eun Jung Choi, Daejeon (KR); Seo Hwa Kim, Daejeon (KR); Byoung Il Kang, Daejeon (KR); Seongkyun Kim, Daejeon (KR); and Yeongmin Kim, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/774,611
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Jun. 21, 2021, PCT No. PCT/KR2021/007741
§ 371(c)(1), (2) Date May 5, 2022,
PCT Pub. No. WO2022/085893, PCT Pub. Date Apr. 28, 2022.
Claims priority of application No. 10-2020-0136605 (KR), filed on Oct. 21, 2020; and application No. 10-2021-0078390 (KR), filed on Jun. 17, 2021.
Prior Publication US 2022/0380594 A1, Dec. 1, 2022
Int. Cl. C08L 55/02 (2006.01); C08F 220/18 (2006.01); C08L 23/0853 (2025.01); C08L 25/12 (2006.01); C08L 51/00 (2006.01); C08L 77/12 (2006.01)
CPC C08L 55/02 (2013.01) [C08F 220/1804 (2020.02); C08F 220/1806 (2020.02); C08F 220/1808 (2020.02); C08L 23/0853 (2013.01); C08L 25/12 (2013.01); C08L 51/003 (2013.01); C08L 77/12 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01); C08L 2207/04 (2013.01); C08L 2207/53 (2013.01)] 20 Claims
 
1. A thermoplastic resin composition, comprising:
a base resin comprising a first graft copolymer comprising a conjugated diene-based polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer; a second graft copolymer comprising an acrylic rubber-based polymer, an aromatic vinyl-based monomer, and a vinyl cyanide-based monomer; and a thermoplastic copolymer comprising an aromatic vinyl-based monomer and a vinyl cyanide-based monomer,
a thermoplastic polyamide elastomer,
an ethylene copolymer, and
a metal pigment,
wherein, when a weight of the thermoplastic polyamide elastomer based on 100 parts by weight of the base resin is “a”, a weight of the ethylene copolymer based on 100 parts by weight of the base resin is “b”, and a weight of the second graft copolymer based on 100% by weight in total of the base resin is “c”, b+c≥0.5a is satisfied.