Silicone polyether copolymers and process for preparation thereof

US8779079B2 · kind B2 · utility

Assignee

• EVONIK DEGUSSA GMBH · DE

Inventors

• Frauke Henning · Essen, DE
• Frank Schubert · Neukirchen-Vluyn, DE
• Wilfried Knott · Essen, DE
• Horst Dudzik · Essen, DE

Key dates

• Filing date: Jul 16, 2010
• Grant date: Jul 15, 2014
• Expiry date: Jul 16, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/80
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Novel silicone polyether copolymers of inverse structure of the formula 1, characterized in that no unsaturated functional groups caused by side reactions or conversion products thereof are present in the copolymer, and a process for preparation thereof, in which a polyether modified terminally and/or laterally with alkoxysilyl groups is reacted with silanes and/or siloxanes which bear one or more hydrolysis-labile groups, in a hydrolysis and condensation reaction.