公开(公告)号：US20230013191A1

公开(公告)日：2023-01-19

申请号：US17778551

申请日：2020-12-16

Applicant: NIPPON A&L INC.

Inventor： Kazuto AKAKI

IPC: C08F265/06 ,  C08F220/44 ,  C08F212/08 ,  C08F220/18

Abstract: A graft copolymer resin obtainable by graft-polymerizing a vinyl monomer comprising a vinyl cyanide monomer and an aromatic vinyl monomer to a rubbery polymer, in which a free resin contained in the graft copolymer resin comprises 10 to 35% by mass of a constituent unit derived from a (meth)acrylic acid alkyl ester having an alkyl group containing 4 or more carbon atoms, based on the total amount of the free resins, and the graft copolymer resin satisfies at least one of the following requirements (1) and (2): (1) the rubbery polymer comprises a constituent unit derived from a (meth)acrylic acid alkyl ester having an alkyl group containing 4 or more carbon atoms; and (2) the vinyl monomer further comprises a (meth)acrylic acid alkyl ester having an alkyl group containing 4 or more carbon atoms.