THERMOPLASTIC POLYESTER RESIN COMPOSITION

摘要

PURPOSE: A thermoplastic polyester resin composition is provided to ensure excellent mechanical properties and heat resistance, and good coatability and deposition due to excellent surface property after injection molding. CONSTITUTION: A thermoplastic polyester resin composition includes (a) 44.5-69.7 weight% of a polybutylene terephthalate resin, (b) 10-20 weight% of a polyethylene terephthalate resin, (c) 0.1-3.0 weight% of an ethylene copolymer represented by as chemical formula 1 as an impact reinforcing agent, (d) 0.1-2.0 weight% of maleic anhydride-grafted polypropylene as a coupling agent in which maleic anhydride is represented by as chemical formula 2, (e) 0.1-0.5 weight% of branched fatty acid ester as an inner activator represented by chemical formula 3, and (f) 20-30 weight% of talc.