PROCESS FOR THE PREPARATION OF IMPACT-RESISTANT THERMOPLASTIC POLYMER MIXTURES AND IMPACT-RESISTANT POLYMER COMPOSITIONS

摘要

An improved process for the preparation of impact-resistant thermoplastic polymer mixtures based upon a mixture of a thermoplastic polymer with a rubber; impact-resistant thermoplastic polymer mixtures made thereby; and impact-resistant polymer compositions made therefrom. A mixture is prepared of a thermoplastic polymer as a matrix phase with a particulate rubber phase dispersed therein, in the presence of a compound having the capability of promoting adhesion of such particles in the matrix. The mixture is thereafter solidified. Either before or after such solidification, the mixture is subjected to irradiation, having the effect of selectively, at least partially, crosslinking the particulate rubber phase.