Antistatic acrylic resin composition and method for the production thereof

Claim 1

An antistatic acrylic resin composition, which comprises a copolymer of 100 parts by weight of a methyl methacrylate monomer or a monomer mixture comprising 50% by weight or more of methyl methacrylate and a copolymerizable vinyl monomer with 0.5 to 15 parts by weight of a sulphone (A) selected from the group consisting of: ##STR18## and mixtures thereof, wherein R 1 is a hydrocarbon group having 1 to 18 carbon atoms; a hydrocarbon group having 1 to 18 carbon atoms which is substituted with a member selected from the group consisting of hydroxy, halogen, carboxyl, tetrahydroxyfuryl, epoxy, nitrile, amide and amino, or an alkylene oxide-containing group wherein each alkylene oxide has 2 to 4 carbon atoms; R 2 is a hydrogen atom or methyl group; X is an alkylene oxide having 2 to 4 carbon atoms; n is an integer of 0 to 35 in number average; M is an alkali metal, ammonium, an organic amine base, or an organic quaternary ammonium base, 0to 15 parts by weight of an alkylene oxide (B) of the formula: R.sup.3 O--(Y).sub.1 --R.sup.4 (III) wherein R 3 is a hydrogen atom, a hydrocarbon group having 1 to 18 carbon atoms, acryloyl group, or methacryloyl group; R 4 is a hydrogen atom, an alkyl group having 1 to 18 carbon atoms, allyl group, an aryl group having 6 to 18 carbon atoms, or an aralkyl group having 7 to 18 carbon atoms; Y is an alkylene oxide having 2 to 4 carbon atoms; and 1 is 1 to 35 in number average, and 0 to 5 parts by weight of an acidic phosphate (C) of the formula: ##STR19## where R 5 is an alkyl group having 1 to 18 carbon atoms, allyl group, an aryl group having 6 to 18 carbon atoms, an aralkyl group having 7 to 18 carbon atoms, an acryloxyalkyl group having 1 to 18 carbon atoms in the alkyl moiety, a methacryloxyalkyl group having 1 to 18 carbon atoms in the alkyl moiety, or a derivative thereof; q is 1 or 2.