Process for preparing organosilazanes

US4255549A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien (Henkel KGAA) · DE

Inventors

• Peter Christophliemk · Düsseldorf, DE
• Riza N. Oezelli · Neuss, DE
• Guenther Tischbirek · Düsseldorf, DE

Key dates

• Filing date: Jul 25, 1979
• Grant date: Mar 10, 1981
• Expiry date: Jul 25, 1999

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/10
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

This invention is directed to an improved process for the preparation of condensable, film-forming organosilazanes by ammonolysis of organohalosilanes with liquid ammonia, the improvement comprising reacting a from about 5 to 15% by weight solution of organohalosilane in inert solvent with excess liquid ammonia under pressure at temperatures between 0.degree. and 50.degree. C.