Polymer mixtures and covulcanizates produced therefrom

US4774295A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Hartmuth Buding · Titz, DE
• Heinrich Konigshofen · Bensberg, DE
• Zsolt Szentivanyi · Leverkusen, DE
• Joachim Thormer · Leverkusen, DE

Key dates

• Filing date: Dec 11, 1986
• Grant date: Sep 27, 1988
• Expiry date: Dec 11, 2006

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L33/08
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Covulcanizates with good mechanical properties obtained from mixtures of (a) from 50 to 5% by weight of chlorinated or chlorosulphonated polyethylene, acrylate rubber or ethylene vinyl alcohol copolymers and (b) from 50 to 95% by weight of partially or completely hydrogenated nitrile group-containing elastomers containing from 25 to 140 nitrile nitrogen atoms and less than 35 double bonds for each 1,000 carbon atoms, by cross linking.