Precipitated silicic acid, method and compositions containing same

US4273589A · kind A · utility

Assignee

• Deutsche Gold- und Silber-Scheideanstalt Vormals Roessler

Inventors

• Peter Nauroth · Wesseling, DE
• Heinz Esch · Wesseling, DE
• Robert Kuhlmann · Lechenich, DE
• Rudolf Bode · Bad Orb, DE
• Arthur Reisert · Alzenau, DE

Key dates

• Filing date: Jul 31, 1979
• Grant date: Jun 16, 1981
• Expiry date: Jul 31, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C01P2006/90
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Finely divided precipitated silicic acid is obtained by the method of the invention. Compositions containing the finely divided precipitated silicic acid as a filler distributed in an elastomer such as an organopolysiloxane are disclosed.