METHACRYLIC RESIN COMPOSITION

摘要

An acrylic resin composition suitable for use as films excellent in transparency, weatherability, hardness, impact resistance, flex cracking resistance, and formability. The resin composition comprises an acrylic graft copolymer (A) including a rubbery acrylic ester polymer (A-a) and a methacrylic polymer (B) comprising 80 wt.% or more methyl methacrylate units, the acrylic resin composition having a specific value of reduced viscosity (0.2-0.8 dl/g), specific values of content (5-45 wt.%) and average particle diameter (50-200 nm) of the rubbery polymer (A-a), a specific relationship between the particle diameter and the crosslinking agent amount (0.02d=w=0.05d; d, average particle diameter (nm); w, amount of crosslinking agent (wt.%)), and a specific value of the degree of grafting (50-250%). The resin composition contains an ultraviolet absorber incorporated therein through copolymerization.