Method for the production of isocyanatoorganosilanes

US7576228B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Christoph Rüdinger · Starnberg, DE
• Ragnar Bogner · Hersbruck, DE
• Hans-Jurgen Eberle · Munich, DE
• Johann Weis · Sauerlach, DE

Key dates

• Filing date: Dec 2, 2004
• Grant date: Aug 18, 2009
• Expiry date: Dec 2, 2024

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C07F7/1892
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing isocyanoatoorganosilanes by thermolysis of carbamatoorganosilanes in the presence of microwave radiation, optionally employing homogeneous or heterogeneous catalysis, provides isocyanatoorganosilane product in higher yield than prior art thermolyses, and with fewer byproducts. A continuous process is thus possible.