Polymer mixtures and co-vulcanizates produced therefrom

US4565614A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

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

Key dates

• Filing date: Oct 4, 1984
• Grant date: Jan 21, 1986
• Expiry date: Oct 4, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L15/00
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Co-vulcanizates are produced from mixtures of (a) from 95 to 5% by weight of fluoroelastomers and (b) from 5 to 95% by weight of elastomers which contain nitrile groups and have from 25 to 140 nitrile-nitrogen atoms and less than 35 double bonds per 1000 carbon atoms, and (c) conventional mixture ingredients, the percentages relating to the sum total of (a) and (b). The co-vulcanizates are suitable for the production of seals and other rubber articles, in particular for areas of use which impose exacting requirements.