Combinations of polyorganosiloxanes and fluororubbers containing double bonds by Si-H addition

US5554689A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Gerhard Langstein · Kürten, DE
• Ralf Kr uger · Bensberg, DE
• Heinrich Alberts
• Hans-Heinrich Moretto · Cologne, DE
• John Huggins · Nevada City, US

Key dates

• Filing date: Nov 23, 1994
• Grant date: Sep 10, 1996
• Expiry date: Nov 23, 2014

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L27/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

A chemically linkable mixture comprising PA1 (a) about 98 to 80% by weight of a fluoroelastomer bearing lateral olefinic double bonds, PA1 (b) about 2 to 20% by weight of at least one of a silicone oligomer, silicone elastomer and a fluorosilicone elastomer containing Si--H groups, and PA1 (c) a catalyst containing at least one of a noble metal and an organic peroxide. Fluororubbers made therefrom are distinguished by excellent physical properties.