| 摘要 |
PURPOSE:To obtain a fiber-reinforced composite material excellent in moldability, mechanical property and weathering resistance and good in appearance, by mixing a mixture comprising a specified resin, a polyvinyl oligomer and a vinyl monomer with a reinforcing fiber, a metal oxide, etc. CONSTITUTION:A mixture is obtained by mixing 10-40wt% methacrylate copolymer resin containing 0.05-1.0mol, per 1,000g of resin, of groups of the formula (wherein X is an aromatic group or an alicyclic group) as side chains with 5-40wt% polyvinyl oligomer having at least two (meth)acryloyl groups in the molecule and 20-85wt% vinyl monomer (e.g., methyl methacrylate). This mixture is further mixed with a reinforcing fiber such as glass fiber, a bivalent metal oxide or hydroxide and, optionally, a radical polymerization initiator, a filler, a shrinkage-lowering aid, etc., and th obtained mixture is thickened to a viscosity at 25 deg.C of 100,000-1,500,000 P and molded by heating to 120-160 deg.C at a pressure of 20-250kb/cm<2> for 2-10 min. |
