US 12,134,671 B2
Alkyl acrylate compound-vinyl cyanide compound-aromatic vinyl compound graft copolymer, method of preparing the same, and thermoplastic resin composition including the same
Seyong Kim, Daejeon (KR); Yong Yeon Hwang, Daejeon (KR); Bong Keun Ahn, Daejeon (KR); Min Jung Kim, Daejeon (KR); Jang Won Park, Daejeon (KR); Ji Yoon Jeon, Daejeon (KR); and Eun Ji Lee, Daejeon (KR)
Assigned to LG CHEM, LTD., Seoul (KR)
Appl. No. 17/434,691
Filed by LG CHEM, LTD., Seoul (KR)
PCT Filed Nov. 3, 2020, PCT No. PCT/KR2020/015182
§ 371(c)(1), (2) Date Aug. 27, 2021,
PCT Pub. No. WO2021/118063, PCT Pub. Date Jun. 17, 2021.
Claims priority of application No. 10-2019-0163480 (KR), filed on Dec. 10, 2019.
Prior Publication US 2022/0041783 A1, Feb. 10, 2022
Int. Cl. C08F 265/04 (2006.01); C08F 257/02 (2006.01); C08F 265/06 (2006.01); C08F 265/08 (2006.01); C08J 3/12 (2006.01); C08J 3/24 (2006.01); C08L 51/00 (2006.01)
CPC C08F 265/04 (2013.01) [C08F 257/02 (2013.01); C08F 265/06 (2013.01); C08F 265/08 (2013.01); C08J 3/126 (2013.01); C08J 3/245 (2013.01); C08L 51/003 (2013.01); C08F 2810/20 (2013.01); C08J 2351/06 (2013.01); C08L 2205/025 (2013.01); C08L 2205/03 (2013.01); C08L 2207/53 (2013.01)] 12 Claims
 
1. An alkyl acrylate compound-vinyl cyanide compound-aromatic vinyl compound graft copolymer, comprising:
a seed prepared by polymerizing one or more compounds selected from the group consisting of an alkyl acrylate compound, an aromatic vinyl compound, and a vinyl cyanide compound and a multifunctional crosslinking agent;
a core formed to surround the seed and prepared by polymerizing an alkyl acrylate compound and the multifunctional crosslinking agent; and
a graft shell formed to surround the core and prepared by polymerizing an aromatic vinyl compound and a vinyl cyanide compound,
wherein the multifunctional crosslinking agent has a weight average molecular weight of 600 to 1,400 g/mol, and
wherein the multifunctional crosslinking agent has 3 or more functional groups.