Graft copolymer based on an ultrahigh-molecular-weight polyethylene and an ethylene copolymer

US5183855A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• John Hobes · Dinslaken, DE
• Christiane Barth · Oberhausen, DE

Key dates

• Filing date: Sep 19, 1991
• Grant date: Feb 2, 1993
• Expiry date: Sep 19, 2011

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08F255/026
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A graft copolymer based on ultrahigh-molecular-weight polyethylene having a molecular weight .gtoreq. 1,000,000 g/mol, an ethylene copolymer and a graft monomer; and the preparation and use thereof. The ethylene copolymer contains ethylene and vinyl acetate or ethylene and an alkenecarboxylic acid ester. The graft monomer is an alkenecarboxylic acid or an alkenecarboxylic anhydride. The resultant graft polymers posses improved properties compared with the materials from which they are derived.