ACRYLIC RESIN COMPOSITION

摘要

An acrylic resin composition that is excellent in impact resistance, antiweatherability and processability and exhibits low gloss. In particular, an acrylic resin composition comprising 10 to 40 pts.wt. of high-molecular- weight acrylic (co)polymer (A) being a mono- or multi-staged polymer compose d of 72 to 100 wt.% of methyl methacrylate and 28 to 0 wt.% of copolymerizable monomer and having a specific viscosity (solvent: toluene, concentration: 0. 4% and temperature: 30.ordm.C) of 0.5 or higher wherein the mono-staged polymer is comprised of 72% by weight or more of methyl methacrylate, has a specific viscosity of 0.5 or higher and occupies 55% by weight or more of the whole- stage total weight; 0 to 80 pts.wt. of acrylic (co)polymer (B) composed of 5 0 to 100 wt.% of methyl methacrylate and 50 to 0 wt.% of copolymerizable monom er and having a specific viscosity of less than 0.5; and 10 to 90 pts.wt. of impact resistance modifier of multilayer structure provided that the total o f components (A), (B) and (C) constitute 100 pts.wt., which acrylic resin composition exhibits a melt flow index (230.ordm.C and 3.8 kg load) of 0.35 to 1.4 g/10 min.