THERMOPLASTIC POLYESTER RESIN COMPOSITION

摘要

A thermoplastic polyester resin composition is provided to ensure mechanical property and heat-resistance while holding moldability in an inection process, and to minimize the generation of an anti-migration material. A thermoplastic polyester resin composition comprises a polybutyleneterephthalate resin 44-78.8 weight%, (b) a polyethyleneterephthalate resin 5-20 weight%, (c) glass fiber 15-30 weight% in which a diameter is 8-18 micron and a length is 2-7 mm, (d) branched fatty acid ester 0.1-0.5 weight% represented by chemical formula 1 as an internal activator, (e) a reactive organic functional silane 0.1-0.5 weight% represented by chemical formula 2 as a coupling agent, and (f) an ethylene copolymer 1.0-5.0 weight% represented by chemical formula 3.