	US 12,221,512 B2
	Polybutylene terephthalate resin composition
Takuya Shimoharai, Otsu (JP); and Wenli Peng, Otsu (JP)
Assigned to TOYOBO MC CORPORATION, Osaka (JP)
Appl. No. 17/433,032
Filed by TOYOBO CO., LTD., Osaka (JP)
PCT Filed Feb. 21, 2020, PCT No. PCT/JP2020/007051 § 371(c)(1), (2) Date Aug. 23, 2021, PCT Pub. No. WO2020/175369, PCT Pub. Date Sep. 3, 2020.
Claims priority of application No. 2019-033914 (JP), filed on Feb. 27, 2019.
Prior Publication US 2022/0153925 A1, May 19, 2022
Int. Cl. C08G 63/183 (2006.01); C08K 3/34 (2006.01); C08L 67/02 (2006.01)

CPC C08G 63/183 (2013.01) [C08K 3/34 (2013.01); C08L 67/025 (2013.01); C08K 2201/005 (2013.01); C08L 2201/08 (2013.01); C08L 2203/30 (2013.01); C08L 2205/025 (2013.01)]

2 Claims

1. A polybutylene terephthalate resin composition comprising 86 to 96 parts by mass of a polybutylene terephthalate resin (A) having an intrinsic viscosity (IV) of 1.0 to 1.3 dl/g, 3 to 13 parts by mass of a polyester elastomer (B) having a reduced viscosity of 0.5 to 3.5 dl/g, and 0.05 to 2 parts by mass of a talc (C) having an average particle size of 5 μm or less, based on 100 parts by mass in total of components (A), (B) and (C), wherein a mass ratio of hard segment/soft segment constituting the polyester elastomer (B) is 85/15 to 50/50, and wherein the polybutylene terephthalate resin composition used for an article having a thickness of 0.3 mm obtained by injection molding has a tensile elongation at break of 60% or more.