| 摘要 |
PROBLEM TO BE SOLVED: To obtain a compsn. excellent in gloss, smoothness, uniformity of color by compounding an unsaturated polyester resin, a polymerizable monomer, and a styrene-butadiene copolymer in a specific ratio. SOLUTION: An unsaturated polyester resin (A), a polymerizable monomer (B), and a styrene-butadiene copolymer (C) are compounded to satisfy 1.15<= component B/components (A+C)<=1.30 (pts.wt.), and 0.25<= components (C/A) <=0.35 (pts.wt.). A separation preventer (D) and a coloring agent (E) are pref. compounded each 1.0-10 pts.wt. and 1-10 pts.wt. to the total 100 pts.wt. components A to C. When a compsn. of the components A to E is compression molded by the use of a mold, molding compression rate S is pref. regulated to -0.05-0.05%, and a sheet type molding material is pref. formed by coating the compsn. together with a reinforcing agent between two films so that the compsn. together with the reinforcing agent will be pressed at 1.5-2.5 kg/cm<2> . |
