Defoamer composition based on organofunctionally modified polysiloxanes

US12053721B2 · kind B2 · utility

Assignee

• Evonik Operations GmbH · DE

Inventors

• Thorsten Schierle · Essen, DE
• Philippe Favresse · Ratingen, DE
• Michael Ferenz · Essen, DE
• Frank Schubert · Neukirchen-Vluyn, DE
• Alexander Schulz · Rietberg, DE
• Michael Gippert · Essen, DE
• Tim Luca Wessiepe · Essen, DE

Key dates

• Filing date: Aug 11, 2021
• Grant date: Aug 6, 2024
• Expiry date: Nov 9, 2042

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/46
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A defoamer composition based on organofunctionally modified polysiloxanes contains one or more laterally polyether-modified polysiloxanes as component A and at least one terminally polyether-modified polysiloxane as component B.