Patent ID: 11104794

Abstract:
A polybutylene terephthalate resin composition for bonding a polyester elastomer for use in a molded article for welding a polyester elastomer that enables bonding by insert molding; and that ensures a practical bonding strength, even in a portion where stress is generated. The polybutylene terephthalate resin composition comprises: 40 to 95 mass % of a polybutylene terephthalate resin (A); 4 to 40 mass % of a polyester block copolymer (B); 0 to 50 mass % of a copolyester resin (C) different from (B); and 0 to 55 mass % of an inorganic filler (D), the polyester block copolymer (B) comprising, as a constituent, a hard segment composed of a polyester having a specific structure.