Methacrylic resin shaped article, process for producing the same and process for producing a shaped article having a mat surface from said resin shaped article

摘要

A novel methacrylic resin shaped article is made of novel compositions comprising (A) 80 to 99.9% by weight of methyl methacrylate polymer or copolymer, which forms continuous phase, and (B) 0.1 to 20% by weight of a polymer obtained from at least one unsaturated monomer of the general formula ##STR1## wherein R.sub.1 is H or methyl group and R.sub.2 is a hydrocarbon radical of at least two carbon atoms, a derivative or monomer mixture thereof, the respective refractive indexes (n.sub.A) and (n.sub.B) of said (A) and (B) polymers satisfying the relation of 0. 998≦n. sub.B /n.sub.A ≦1.002. The above shaped article has a latent mat surface, which therefore may be converted to a mat surface merely by means of stretching at a temperature above heat distortion temperature.