| 摘要 |
PROBLEM TO BE SOLVED: To provide an unsaturated polyester resin composition that has excellent early-stage mold-release prevention effect, surface smoothness, curing shrinkage ratio and styrene volatility and provide laminated materials therefrom and moldings therefrom. SOLUTION: The unsaturated polyester resin composition, laminated molding material and moldings therefrom comprise (A) 80-65 pts.wt. of unsaturated polyester that is prepared from (a1) an unsaturated acid, (a2) a glycol, and (a3) cyclopentadiene, and has a number-average molecular weight of 400-600, and an acid value of 20-30, (B) 20-35 pts.wt. of a polymerizable unsaturated monomer.
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