- PROCESS FOR CORE-SHELL IMPACT MODIFIERS AND IMPACT MODIFIED THERMOPLASTIC COMPOSITION WITH ENHANCED HYDROLYTIC RESISTANCE

摘要

The present invention relates to a process for the preparation of impact modifiers, impact-modified thermoplastic mold compositions, especially impact-modified polycarbonate or polycarbonate / polyester blends with improved resistance to degradation.More particularly, the present invention relates to a process for the preparation of polymeric impact modifiers having a core-shell structure prepared by a multistage process, including, if necessary, control and regulation of pH values before and during the recovery step.;