To provide a maleimide heat resistance-imparting material for heat- resistant ABS resins, excellent in balance of physical properties of impact resistance, heat resistance and fluidity, having good hue and excellent in appearance of the molded articles, and the heat-resistant ABS resins containing the heat resistance-imparting material and to provide a method for producing the heat- resistant ABS resin.
This maleimide heat resistance-imparting material is obtained by compounding (A) a maleimide copolymer composed of an aromatic vinyl monomer, an unsaturated dicarboxylic imide derivative, unsaturated dicarboxylic anhydride monomer and a vinyl monomer copolymerizable with these monomers and (B) a vinyl copolymer composed of an aromatic vinyl monomer, a vinyl cyanide monomer and a vinyl monomer copolymerizable therewith with one or more kinds of specific organophosphorus compounds in an amount of 0.1-5.0 pts.wt. based on the total amount of the components (A) and (B). This heat- resistant ABS resin comprises the heat-resistance-imparting material. This method for producing the heat-resistant ABS resin is further provided.
KUROKAWA KINYA
KONISHI KUNIHIKO
ENDO MASAMICHI
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