| 摘要 |
PURPOSE:To obtain a low-shrinkable unsaturated polyester resin composition consisting of an unsaturated polyester resin, styrenesolution of a thermoplastic polymer and specific filler and having excellent moldability, filling properties and storage stability. CONSTITUTION:(A) Unsaturated polyester resin is blended with (B) styrene solution of thermoplastic polymer and (C) filler (e.g. heavy calcium carbonate or talc) containing (i) 40-45wt.% filler having 0.8-1.4mum average particle and (ii) 12-15wt.% filler having 7-15mum average particle to provide the aimed composition.
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