| 摘要 |
PROBLEM TO BE SOLVED: To obtain a polybutylene terephthalate resin composition having the excellent durability, especially excellent hydrolysis resistance of polybutylene terephthalate resins, and strongly adhering to silicone rubbers. SOLUTION: A polybutylene terephthalate resin composition comprises (A) 100 pts.wt. of polybutylene terephthalate obtained in the presence of a titanium compound as a polymerization catalyst and having a terminal carboxyl group concentration of <=15 equivalent/T, (B) 0.01-3 pts.wt. of a silicon-containing compound having at least one hydrogen atom directly bonded to a silicon atom in the molecule and/or its polymer, and (C) 0.01-0.5 pt.wt. of a phenolic antioxidant. Therein, the polybutylene terephthalate resin composition has a peel strength of >=10N, when a molded product comprising the composition is immersed in 23 deg.C pure water for 24 hr and subjected to the measurement of the peel strength as an integral molded product with a silicone rubber. |
