US 12,104,014 B2
Polycarbonate resin composition and molded body of same
Sho Kitagawa, Ichihara (JP); and Mitsuhiro Okada, Ichihara (JP)
Assigned to SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
Appl. No. 17/056,577
Filed by SUMITOMO CHEMICAL COMPANY, LIMITED, Tokyo (JP)
PCT Filed May 22, 2019, PCT No. PCT/JP2019/020308
§ 371(c)(1), (2) Date Nov. 18, 2020,
PCT Pub. No. WO2019/225659, PCT Pub. Date Nov. 28, 2019.
Claims priority of application No. 2018-098849 (JP), filed on May 23, 2018.
Prior Publication US 2021/0253789 A1, Aug. 19, 2021
Int. Cl. C08G 64/04 (2006.01); C08G 63/183 (2006.01); C08L 23/04 (2006.01); C08L 63/00 (2006.01)
CPC C08G 64/04 (2013.01) [C08G 63/183 (2013.01); C08L 23/04 (2013.01); C08L 63/00 (2013.01); C08L 2203/30 (2013.01); C08L 2205/035 (2013.01)] 4 Claims
OG exemplary drawing
 
1. A polycarbonate resin composition, comprising:
(a) an aromatic polycarbonate;
(b) a polyester comprising polybutylene terephthalate; and
(c) a polymer having an epoxy group,
wherein the polycarbonate resin composition satisfies the following requirements:
(1) a content of the (a) aromatic polycarbonate is 80% by mass or more and 98% by mass or less based on a mass of the polycarbonate resin composition;
(2) a mass ratio of a content of the (c) polymer having an epoxy group with respect to a content of the (b) polyester is more than 3.0 and 9.1 or less; and
(3) a content of a sum of the (b) polyester and the (c) polymer having an epoxy group is 5.5 parts by mass or more and 20 parts by mass or less with respect to 100 parts by mass of the (a) aromatic polycarbonate; wherein a proportion of a monomer unit having an epoxy group is more than 6% by mass based on a mass of the polymer having an epoxy group, and the polymer having an epoxy group is an ethylene-glycidyl (meth)acrylate copolymer.