US 11,987,698 B2
Resin composition for plating
Shinji Yamashita, Tokyo (JP); Hiroshi Sakai, Tokyo (JP); and Hideichiro Kawaguchi, Tokyo (JP)
Assigned to TECHNO-UMG CO., LTD., Tokyo (JP)
Appl. No. 17/762,478
Filed by Techno-UMG Co., Ltd., Tokyo (JP)
PCT Filed Oct. 28, 2021, PCT No. PCT/JP2021/039917
§ 371(c)(1), (2) Date Mar. 22, 2022,
PCT Pub. No. WO2022/137801, PCT Pub. Date Jun. 30, 2022.
Claims priority of application No. 2020-214083 (JP), filed on Dec. 23, 2020.
Prior Publication US 2022/0348764 A1, Nov. 3, 2022
Int. Cl. C08L 69/00 (2006.01); C08F 279/04 (2006.01); C08L 55/02 (2006.01); C23C 18/20 (2006.01)
CPC C08L 69/00 (2013.01) [C08F 279/04 (2013.01); C08L 55/02 (2013.01); C08L 2205/02 (2013.01)] 2 Claims
 
1. A metal-plated article comprising a resin composition, wherein the resin compositing comprises: a graft copolymer (A) in which a monomer component (a) is graft-polymerized on a polybutadiene; and a polycarbonate resin (P), wherein
an amount of the graft copolymer (A) is 17 to 50% by mass, based on a total mass of the resin composition,
an amount of the polycarbonate resin (P) is 40 to 70% by mass, based on a total mass of the resin composition,
the monomer component (a) comprises 60 to 80% by mass of an aromatic vinyl compound (al), 20 to 40% by mass of a vinyl cyanide compound (a2), and 0 to 20% by mass of another vinyl compound (a3) copolymerizable with the aromatic vinyl compound (a1) and the vinyl cyanide compound (a2), each based on a total mass of the monomer component (a),
a rubber content (X) in the graft copolymer (A) is more than 40% by mass, based on a total mass of the graft copolymer (A), wherein the rubber content (X) is measured with respect to the graft copolymer (A) from which an acetone-soluble fraction has not been separated after graft polymerization to produce the graft copolymer (A),
a graft ratio (Y) of the graft copolymer (A) satisfies formula (1) below:
793e−0.041X≥Y≥594e−0.041X   (1),
a rubber content (Z) in the resin composition is 10 to 18% by mass, based on a total mass of the resin composition, and
a mass-based average particle size of the rubbery polymer is 0.20 to 0.28 μm.