Antifoaming agents and use thereof in detergents

US9387417B2 · kind B2 · utility

Assignee

• Wacker Chemie AG · DE

Inventors

• Markus Merget · Mehring, DE
• Richard Becker · Burghausen, DE

Key dates

• Filing date: Jun 13, 2013
• Grant date: Jul 12, 2016
• Expiry date: Jun 13, 2033

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D7/14
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Antifoam powders with delayed anti-foaming action, contain whereQ is an amino group of the general formula—R2—[NR3—(CH2)m—]xNR4R5  (III)or forms thereof with partial or full protonation on the nitrogen atoms,