Formulation and its use as defoamer

US11945951B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Alexander Schulz · Rietberg, DE
• Philippe Favresse · Ratingen, DE
• Sascha Herrwerth · Essen, DE
• Frank Schubert · Neukirchen-Vluyn, DE
• Matthias Lobert · Essen, DE
• Johannes Troendlin · Essen, DE
• Thomas Thomalla · Essen, DE
• Thorsten Schierle · Essen, DE
• Michael Gippert · Essen, DE
• Jonas Urbath · Wuppertal, DE

Key dates

• Filing date: Dec 18, 2020
• Grant date: Apr 2, 2024
• Expiry date: Aug 9, 2041

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C09D183/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

The present invention relates to a formulation comprising a polyether siloxane, which is characterized in that a polyether that is terminated with an ester group and that is different from the polyether siloxane is present in the formulation in an amount of from 0.5 to 10% by weight based on the complete formulation, to a process for the production of a defoamed composition, wherein the inventive formulation is added to the composition to be defoamed, and to a composition comprising a formulation according to the invention, wherein the composition is a coating agent, a paint or a varnish.