COMPOSIZIONI POLIPROPILENICHE AGGRAFFATE CON VINILPOLIBUTADIENI FUNZIONALIZZATI

摘要

The present invention relates to heterophasic polyolefin compositions comprising from 10 to 60 parts of a xylene-insoluble fraction (A) and from 40 to 90 parts of a xylene-soluble fraction (B), grafted with specific polybutadienes containing -Si(OR)3 groups in which R is a hydrocarbon radical having from 1 to 5 carbon atoms. The said compositions have excellent adhesive properties and stability properties in acidic medium, and are particularly suitable for use in the field of Pb-acid type dipolar batteries.