| 摘要 |
PURPOSE: A polyester resin composition is provided to improve heat resistance, surface smoothness and surface glossiness, thereby enabling use for interiors or exteriors of automobiles or electrical and electronic components. CONSTITUTION: A polyester resin composition includes (a) 90~99 weight% of polybutylene terephthalate resin, (b) 0.1~2 weight% of talc, (c) 0.4~3 weight% of reactive surfactant, (d) 0.5~5 weight% of layered silicate. The particle size of talc is 5~40 micron. The reactive surfactant comprises an oligomer having a functional group at a terminal group or side chain, or a polymer-shaped reactive compatibilizer, wherein the functional group is selected from the group consisting of maleic anhydride, oxazoline, glycidylmethacrylate, and epoxy.
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