Production of polyether siloxanes

US9540500B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Michael Ferenz · Essen, DE
• Stephan Hofmann · Rheydt, DE
• Horst Dudzik · Essen, DE
• Carsten Schiller · Mülheim an der Ruhr, DE

Key dates

• Filing date: Dec 4, 2015
• Grant date: Jan 10, 2017
• Expiry date: Dec 4, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/12
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Processes for producing polyether siloxanes are provided in which unsaturated polyethers are reacted with one or more SiH-functional siloxanes in the presence of Pt(0) compounds and tertiary amines Also, provided is the use of Pt(0) compounds and tertiary amines for producing polyether siloxanes and to the use of the polyether siloxanes thus obtained.