Thermoplastic polyolefinic composition with improved physical properties containing a silane-grafted polymer, and process for obtaining the improvement

摘要

1. A process enabling the physical properties of a thermosplastic polyolefin (A) to be improved by mixing it with a polymer grafted with silanes carrying hydrolyzable groups (B), characterized in that the mixture of 20 to 99.5 parts by weight of compatible thermoplastic polyolefin (A) with 0.5 to 80 parts by weight of a polymer grafted with silanes (B), after being shaped, is cross-linked by hydrolysis, preferably in the presence of a catalyst of silanol condensation.