VULCANIZED POLYOLEFINIC PLASTOELASTOMER COMPOSITION AND A PROCESS FOR ITS PREPARATION

摘要

The invention provides plastoelastomer compositions obtained by dynamic vulcanization, in the presence of vulcanizing agents, of a polymeric mixture comprising: a) 15-70 wt% of polypropylene, b) 2-20 wt% of polyisobutene, c) 20-70 wt% of ethylene/propylene/diene elastomer terpolymer (EPDM), d) 0-35 wt% of ethylene/propylene elastomer copolymer (EPM), e) 3-30 wt% of polybutadiene.