Polyvinyl chloride of high impact strength prepared on the basis of ethylene-vinyl acetate or ethylene-alkylacrylate copolymers

US4185048A · kind A · utility

Assignee

• Dynamit Nobel GmbH · DE

Inventors

• Robert Buning · Troisdorf, DE
• Franz Blaschke · Neheim, DE
• Werner Trautvetter

Key dates

• Filing date: Jul 24, 1978
• Grant date: Jan 22, 1980
• Expiry date: Jul 24, 1998

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L51/06
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Polymer blend of: PA1 (a) 4-15 wt.% of a graft polymer composed of 5-70 wt.% of vinyl chloride grafted in the gel phase, onto 95-30 wt.% of a copolymer of ethylene and vinyl acetate or ethylene and alkyl acrylate, said copolymer being 2.5-15 wt.% of vinyl acetate or alkyl acrylate and 97.5-85 wt.% of ethylene, PA1 (b) 96-85 wt.% of polyvinyl chloride polymer which is at least one of polyvinyl chloride homopolymer and vinyl chloride copolymer. The blend has high impact strength.