HEAT-RESISTANT ABS RESIN COMPOSITION AND METHOD FOR SUPPRESSING ACRYLONITRILE MONOMER GENERATION FROM THE HEAT-RESISTANT ABS RESIN

摘要

PURPOSE: To reduce generation of low-molecular weight components, esp. acrylonitrile monomer, during the kneading process under heating for a heat-resistant ABS resin by incorporating said ABS resin with a specific phenolic compound. ;CONSTITUTION: An ABS resin modified with a maleimide or α-methylstyrene is incorporated with 2,4-di-t-amyl-6-[1-(3,5-di-t-amyl-2-hydroxyphenyl)ethyl]phenyl acrylate. Thereby, generation of acrylonitrile monomer due to the thermal decomposition during the hot kneading of such heat-resistant ABS resin can be reduced, thus suppressing sticking of the resin to a mold and silver streak development in its molding process.;COPYRIGHT: (C)1994,JPO&Japio