	US 12,187,832 B2
	Graft copolymer, resin composition for plating, molded article, and plated product
Shinji Yamashita, Tokyo (JP); Hideichiro Kawaguchi, Tokyo (JP); Hideaki Bekku, Tokyo (JP); and Masataka Iwasaki, Tokyo (JP)
Assigned to TECHNO-UMG CO., LTD., Tokyo (JP)
Appl. No. 18/710,455
Filed by Techno-UMG Co., Ltd., Tokyo (JP)
PCT Filed Sep. 15, 2023, PCT No. PCT/JP2023/033764 § 371(c)(1), (2) Date May 15, 2024, PCT Pub. No. WO2024/090067, PCT Pub. Date May 2, 2024.
Claims priority of application No. 2022-169960 (JP), filed on Oct. 24, 2022.
Prior Publication US 2024/0327560 A1, Oct. 3, 2024
Int. Cl. C08F 279/04 (2006.01)

CPC C08F 279/04 (2013.01)

9 Claims

1. A graft copolymer (A) obtained by graft-polymerizing a monomer component (a) to a rubber-based polymer,

wherein the monomer component (a) satisfies both Requirements 1 and 2, and

a rubber content of the graft copolymer (A) is 40% by mass or more with respect to a total mass of the graft copolymer (A),

Requirement 1—the monomer component (a) contains 60% by mass or more and 85% by mass or less of a mixture (a1) of α-methylstyrene and styrene with respect to a total mass of the monomer component (a),

Requirement 2—the monomer component (a) contains 62.5% by mass or more and 66.7% by mass or less of styrene with respect to a total mass of the monomer component (a).