Process for preparing isocyanatoorganosilanes

US8158818B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Volker Stanjek · Ampfing, DE
• Frank Baumann · Mehring, DE
• Thomas Frey · Brighton, US

Key dates

• Filing date: Nov 28, 2007
• Grant date: Apr 17, 2012
• Expiry date: Nov 10, 2028

Classification

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

Abstract

Isocyanate-functional silanes, particularly isocyanate-functional α-silanes, are prepared in good yield by a liquid phase thermolysis conducted in the presence of a catalyst at a pressure of >100 mbar, or >80 mbar when a thin-film evaporator is used.