Defoamer formulations

US8222303B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Christian Herzig · Waging am See, DE
• Willibald Burger · Burghausen, DE
• Martina Joachimbauer · Haiming, DE
• Josef Wimmer · Burghausen, DE

Key dates

• Filing date: Jun 29, 2010
• Grant date: Jul 17, 2012
• Expiry date: Aug 25, 2030

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/12
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

(A) Siloxane-based antifoams and(B) silicone polyethers prepared by reacting organopolysiloxanes (1) containing 0.05% to 1.6% by weight of Si-bonded hydrogen atoms