| 摘要 |
PURPOSE:To provide excellent surface property and molding property and prevent the clouding of a glass surface over a long period of time by molding a lamp reflector out of a polyethylene terephthalate containing polyethylene terephthalate and an inorganic reinforcement. CONSTITUTION:To 100 parts by weight of a polyethylene terephthalate having an inherent viscosity (phenol/terachloroethane mixed solvent, 6/4 by weight, 30 deg.C) of 0.4 or more, 60-200 parts by weight of a polybutylene terephthalate having an in herent viscosity of 0.4 or more, and, as occasion demand, and antioxidant, a UV absorber, and a plastizer are blended, fused, kneaded, and then molded into pellets to provide a polyester resin composite. As the polyethylene terephthalate and polybutylene terephthalate, not only polymers of ethylene glycol or butylene glycol and terephthalic acid (including its derivatives), but also copolymerized polyesters containing at least 80 mole % or more of ethylene terephthalate or butylene terephthalate repeating unit are given. |
