	US 11,718,745 B2
	Thermoplastic resin composition, method of preparing the same, and molded article including the same
Gyu Sun Kim, Daejeon (KR); Dae Woo Lee, Daejeon (KR); Jae Bum Seo, Daejeon (KR); Jung Tae Park, Daejeon (KR); Seongjae Shin, Daejeon (KR); and Jiuk Jang, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/417,360
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Sep. 24, 2020, PCT No. PCT/KR2020/012988 § 371(c)(1), (2) Date Jun. 22, 2021, PCT Pub. No. WO2021/080201, PCT Pub. Date Apr. 29, 2021.
Claims priority of application No. 10-2019-0132326 (KR), filed on Oct. 23, 2019; and application No. 10-2020-0121468 (KR), filed on Sep. 21, 2020.
Prior Publication US 2022/0073724 A1, Mar. 10, 2022
Int. Cl. C08L 51/00 (2006.01); C08F 212/08 (2006.01); C08F 220/14 (2006.01); C08F 220/44 (2006.01); C08F 222/40 (2006.01)

CPC C08L 51/003 (2013.01) [C08F 212/08 (2013.01); C08F 220/14 (2013.01); C08F 220/44 (2013.01); C08F 222/40 (2013.01); C08L 2201/08 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2205/18 (2013.01)]

13 Claims

1. A thermoplastic resin composition, comprising:

55 to 70% by weight of a non-grafted copolymer (A) containing 65 to 83% by weight of a (meth)acrylic acid alkyl ester compound, 2 to 12% by weight of an N-substituted maleimide compound, 1 to 6% by weight of a vinyl cyanide compound, and 7 to 17% by weight of an aromatic vinyl compound;

20 to 42% by weight of an acrylate-based rubber-aromatic vinyl compound-vinyl cyanide compound graft copolymer (B) containing acrylate-based rubber having an average particle diameter of 50 to 200 nm; and

1 to 15% by weight of an acrylate-based rubber-aromatic vinyl compound-vinyl cyanide compound graft copolymer (C) containing acrylate-based rubber having an average particle diameter of 300 to 600 nm.