| abstract |
PURPOSE: To provide a light-diffusing acrylic resin molding which has both high light diffusing ability and high light transmittance and does not cause lowering in the light diffusing ability even when fabricated, by blending a specified quantity of a specified crosslinked polymer with a methyl methacrylate polymer. n CONSTITUTION: A resin compsn. obtd. by blending 1W30pts.wt. crosslinked polymer with 100pts.wt. methyl methacrylate polymer is molded to obtain the titled molding. Said crosslinked polymer has a particle size of 10W500μ, a gel content of 50W90wt% and a degree of swelling of 3W25 and can be obtd. by suspension- polymerizing 0.5W5pts.wt. crosslinkable monomer and 100pts.wt. non-crosslinkable monomer mixture consisting of 50W90wt% C 1 WC 4 alkyl methacrylate, 10W40wt% C 1 WC 8 alkyl acrylate, 0W20wt% arom. vinyl monomer and 0W 20wt% monoethylenically unsaturated monomer. n COPYRIGHT: (C)1984,JPO&Japio |