MOLDING MATERIAL AND FRP MOLDING PREPARED THEREFROM

摘要

PROBLEM TO BE SOLVED: To obtain a compsn. excellent in light-screening properties, physical properties, and processibility by incorporating a specified amt. of titanium oxide into a free-radically curable unsatd. resin compsn. contg. an unsatd. resin and an unsatd. polymerizable monomer.;SOLUTION: This compsn. comprises (A) a free-radically curable unsatd. resin (e.g. an unsatd. polyester or an epoxy acrylate), (B) an unsatd. polymerizable monomer, (C) a curing agent, (D) a cure accelerator, and (E) a filler and contains 1.0-10 wt.% titanium oxide, the contents of ingredients C and D being 0.01-5 pts.wt. and 0.001-5 pts.wt., respectively, based on 100 pts.wt. sum of ingredients A and B. A molding material prepd. by impregnating or mixing a fibrous reinforcement with the compsn. is used in the form of a sheet molding compd. or a bulk molding compd. Titanium oxide used is a white powder having an average particle size of 0.1-0.3 μm, a specific gravity of 3.8-4.2, an oil absorption of 14-40, a specific surface area of 10-35 m2/g, and a bulk density of 0.4-0.8 g/cm3.;COPYRIGHT: (C)2000,JPO