Patent ID: 8052830

Claim:
A process for producing a composite molded product, which comprises contacting a molded product formed from a laser weldable resin composition and located in a transmitting side for a laser beam, with a counterpart resin molded product located in a receiving side for the laser beam, and irradiating the laser beam to these articles for bonding the molded product to the counterpart molded product, wherein the laser weldable resin composition comprises (A) 100 parts by weight of a polybutylene terephthalate-series resin, (B) 1 to 50 parts by weight of an elastomer, (C) 5 to 100 parts by weight of a polycarbonate-series resin, and (D) 1 to 10 parts by weight of a plasticizer, wherein the polybutylene terephthalate-series resin (A) comprises a polybutylene terephthalate-series copolymer modified with 0.01 to 30% by mol of a copolymerizable monomer, the elastomer (B) comprises at least one member selected from the group consisting of a polystyrene-series elastomer and a polyester-series elastomer, the plasticizer (D) comprises at least one member selected from the group consisting of an aromatic polycarboxylic acid ester and an acrylic polymer, the refractive index of the elastomer (B) is 1.52 to 1.59 at a temperature of 25° C., and the refractive index of the plasticizer (D) is 1.45 to 1.60 at a temperature of 25° C.