Patent · US Expired

Grafting polyolefin blends and use of the graft copolymer blends as an adhesion promoter and for the preparation of ionomers

US4906690A · kind A · utility

14Cited by

2References

6Claims

0Family size

Assignee

BASF SE

Inventors

Norbert Hasenbein · Dirmstein, DE
Guenther Schweier · Friedelsheim, DE
Hans Gropper · Schifferstadt, DE
Rainer A. Werner · Annaberg-Buchholz, DE

Key dates

Filing date	Jan 4, 1989
Grant date	Mar 6, 1990
Priority date	—
Expiry date	Jan 4, 2009

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08F287/00
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Ethylenically unsaturated carboxylic acids and/or carboxylic anhydrides are grafted onto polyolefin blends by a process in which the polyolefin blend consists of from 5 to 49 parts by weight of an ethylene/propylene block copolymer having an ethylene content of less than or equal to 20% by weight and from 51 to 95 parts by weight of a homopolymer or copolymer of ethylene, and the resulting graft copolymer blends are used as adhesion promoters, in particular for polyethylene/adhesion promotor/steel composites, and for the preparation of ionomers.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.