Polyglycol ethers as foam-inhibiting additives in low-foam cleaning agents

US4522740A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft AUF · DE

Inventors

• Karl Schmid · Mettmann, DE
• Horst Baumann · Leichlingen, DE
• Jurgen Geke · Düsseldorf, DE
• Hans-Gunther Germscheid · Hösel, DE
• Werner Ludecke · Erkrath, DE
• Robert Piorr · Ratingen, DE
• Christian Rossmann · Langenfeld, DE
• Rolf Scharf · Düsseldorf, DE
• Hans-Joachim Schlussler · Haan, DE

Key dates

• Filing date: Apr 18, 1984
• Grant date: Jun 11, 1985
• Expiry date: Apr 18, 2004

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D3/0026
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Polyethylene glycol ethers of the type obtained by the addition of from 4 to 20 parts by weight of ethylene oxide onto 1 part by weight of polyglycerol having a hydroxyl number in the range from 900 to 1200 and subsequent etherification of the free hydroxyl groups with linear or branched alkyl halides containing from 4 to 8 carbon atoms, and their use as foam-inhibiting additives for low-foam cleaning agents.