Use of polyglycerol partial esters as defoamers

US9738797B2 · kind B2 · utility

Assignee

• Evonik Deguesse GmbH · DE

Inventors

• Margitta Nilewski · Essen, DE
• Philippe Favresse · Ratingen, DE
• André Scharf · Essen, DE
• Petra Gehrmann · Bottrop, DE
• Thomas Mettin · Wuppertal, DE
• Michael Schwan · Biglen, CH
• Oliver Springer · Wesel, DE
• Tobias Wied · Wuppertal, DE

Key dates

• Filing date: Apr 19, 2013
• Grant date: Aug 22, 2017
• Expiry date: Feb 7, 2035

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2650/54
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to the use of polyglycerol partial esters as defoamers, in particular in coating and paint applications, to defoamers comprising polyglycerol partial esters, and to corresponding polyglycerol partial esters.