US 12,269,919 B2
Polybutylene terephthalate resin composition
Motonobu Kamiya, Otsu (JP); Yasuto Fujii, Osaka (JP); Takahiro Shimizu, Otsu (JP); and Kaori Furukawa, Otsu (JP)
Assigned to TOYOBO MC CORPORATION, Osaka (JP)
Appl. No. 17/441,833
Filed by TOYOBO CO., LTD., Osaka (JP)
PCT Filed Mar. 24, 2020, PCT No. PCT/JP2020/013000
§ 371(c)(1), (2) Date Sep. 22, 2021,
PCT Pub. No. WO2020/196512, PCT Pub. Date Oct. 1, 2020.
Claims priority of application No. 2019-058189 (JP), filed on Mar. 26, 2019.
Prior Publication US 2022/0195112 A1, Jun. 23, 2022
Int. Cl. C08G 63/183 (2006.01); C08K 3/26 (2006.01); C08K 3/40 (2006.01); C08K 7/14 (2006.01); C08L 69/00 (2006.01)
CPC C08G 63/183 (2013.01) [C08K 3/26 (2013.01); C08K 3/40 (2013.01); C08K 7/14 (2013.01); C08L 69/00 (2013.01); C08K 2003/265 (2013.01); C08L 2201/08 (2013.01); C08L 2205/025 (2013.01); C08L 2205/035 (2013.01)] 1 Claim
 
1. A polybutylene terephthalate resin composition comprising 20 to 50 mass % of a polybutylene terephthalate resin (A) having an intrinsic viscosity of 0.75 to 1.0 dl/g, 20 to 40 mass % of a fibrous filler (B), 1 to 20 mass % of a polycarbonate resin (C) having a melt volume rate (MVR) of 40 to 100 cm3/10 min under a load of 1.2 kg at 300° C., 3 to 20 mass % of a copolymerized polybutylene terephthalate resin (D), 3 to 20 mass % of an inorganic filler (E) other than the fibrous filler (B), and 10 to 25 mass % of a polyethylene terephthalate resin (F), wherein the inorganic filler (E) is at least one selected from the group consisting of glass beads, silica, calcium carbonate, wollastonite, barium sulfate, and aluminum borate, and a heat deflection temperature of the polybutylene terephthalate resin composition is 190° C. or more.