US 11,958,965 B2
Thermoplastic resin composition and molded product using same
Jieun Park, Uiwang-si (KR); Keehae Kwon, Uiwang-si (KR); Younghyo Kim, Uiwang-si (KR); Jungwook Kim, Uiwang-si (KR); and Hyeongseob Shin, Uiwang-si (KR)
Assigned to Lotte Chemical Corporation, Seoul (KR)
Appl. No. 17/043,063
Filed by LOTTE CHEMICAL CORPORATION, Seoul (KR)
PCT Filed Apr. 1, 2019, PCT No. PCT/KR2019/003796
§ 371(c)(1), (2) Date Sep. 29, 2020,
PCT Pub. No. WO2019/190298, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 10-2018-0037694 (KR), filed on Mar. 30, 2018; and application No. 10-2019-0036963 (KR), filed on Mar. 29, 2019.
Prior Publication US 2021/0024735 A1, Jan. 28, 2021
Int. Cl. C08L 25/12 (2006.01); C08L 25/16 (2006.01); C08L 51/04 (2006.01)
CPC C08L 25/12 (2013.01) [C08L 25/16 (2013.01); C08L 51/04 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01)] 11 Claims
 
1. A thermoplastic resin composition, comprising
a base resin comprising
(A-1) 10 wt % to 30 wt % of a first acrylate-based graft copolymer having an acrylate-based rubbery polymer with an average particle diameter of 300 nm to 400 nm;
(A-2) 25 wt % to 35 wt % of a second acrylate-based graft copolymer having an acrylate-based rubbery polymer with an average particle diameter of 100 nm to 200 nm;
(B) 10 wt % to 15 wt % of an aromatic vinyl compound-vinyl cyanide compound copolymer; and
(C) 40 wt % to 50 wt % of α-methylstyrene-based copolymer, and
(D) 1 to 5 parts by weight of an ultrahigh molecular weight styrene-acrylonitrile copolymer having a weight average molecular weight of greater than or equal to 5,000,000 g/mol, based on 100 parts by weight of the base resin.