Abstract: An electrostatic recording material comprising a substrate treated for low electric resistance and a dielectric layer formed on the substrate and composed of a composition comprising an insulating resin having a volume specific resistance of at least 10.sup.12 .OMEGA.cm and a powder of an acrylonitrile-type polymer having a copolymerized acrylonitrile content of at least 95% by weight and containing substantially no ionic groups, said powder having a volume average particle size of from 1.5 to 4 .mu.m and a content of particles having a size exceeding 8 .mu.m as measured by a particle size distribution measuring apparatus, being at most 0.02% by number.

Abstract: A plastic article having improved surface characteristics comprises a plastic body having adhered thereon a cross-linked film of a composition comprising (A) 10 to 90 parts by weight of a cross-linking unsaturated compound having a molecular weight of M and containing in the molecule N polymerizable ethylenically unsaturated radicals (N being an integer of 2 or more), the ratio of said molecular weight, M, to said number, N, of ethylenically unsaturated radicals (M/N) being about 49 to about 600, (B) 90 to 10 parts by weight of an unsaturated monomer containing in the molecule at least one radical copolymerizable with said component (A) and at least one acid radical, and (C) up to 20 parts by weight of other copolymerizable unsaturated compounds, the total of (A), (B) and (C) being 100 parts by weight, at least a part of the acid radicals contained in the film having been converted into alkali salts thereof, said cross-linked film having a thickness of 5 to 500 .mu..