公开(公告)号：US3891720A

公开(公告)日：1975-06-24

申请号：US29215972

申请日：1972-09-25

Applicant: MONTEDISON SPA

Inventor： SEVERINI FEBO ,  VALVASSORI ALBERTO ,  PAGLIARI ALBERTO

IPC: C08L27/00 ,  C08F255/00 ,  C08F255/04 ,  C08L1/00 ,  C08L7/00 ,  C08L21/00 ,  C08L23/00 ,  C08L23/16 ,  C08L27/06 ,  C08L51/00 ,  C08L51/02 ,  C08L51/06 ,  C08L101/00 ,  C08F15/00 ,  C08F29/12

CPC classification number: C08L27/06 ,  C08L23/16 ,  C08L51/06 ,  C08L2666/02 ,  C08L2666/04

Abstract: Impact resistant compositions comprising crude graft polymers of vinyl chloride on unsaturated olefinic elastomers, said elastomers being copolymers of ethylene, an Alpha -olefin and a diene or a polyene, are prepared by graft polymerizing vinyl chloride onto an olefinic elastomer. The graft polymerization is discontinued before 70% of the vinyl chloride has been polymerized.