Organopolysiloxane compositions and elastomers obtained therefrom

US4147855A · kind A · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• August Schiller · Neuötting, DE
• Norman Dorsch · Burghausen, DE
• Owsin Sommer · Burghausen, DE

Key dates

• Filing date: Oct 28, 1977
• Grant date: Apr 3, 1979
• Expiry date: Oct 28, 1997

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S528/901
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

This invention relates to compositions which can be stored under anhydrous conditions, but when exposed to atmospheric moisture cure at room temperature to form elastomers. These compositions contain a diorganopolysiloxane having terminal condensable groups, a silicon compound having at least one nitrogen atom and at least three hydrolyzable groups per molecule, a reinforcing filler and a phosphoric acid ester. These compositions have improved stability and improved flow properties. Elastomers prepared from these compositions when compared with known compositions, have lower modulus values at 100 percent elongation.