Foam-inhibiting additives in low-foam cleaning compositions: polyethylene glycol ethers

US4973423A · kind A · utility

Assignee

• ECOLAB INC. · US

Inventors

• Juergen Geke · Goldkronach, DE
• Erich Boebers · Krefeld, DE
• Gilbert Schenker · Erkrath, DE
• Robert Piorr · Ratingen, DE
• Karl Schmid · Mettmann, DE

Key dates

• Filing date: Aug 17, 1988
• Grant date: Nov 27, 1990
• Expiry date: Aug 17, 2008

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/721
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Short-chain polyethlene glycol ethers corresponding to the formula: EQU R.sup.1 --O--(CH.sub.2 CH.sub.2 O).sub.n --R.sup.2 wherein: PA0 R.sup.1 is a linear or branched C.sub.6 -C.sub.18 alkyl or alkenyl radical, PA0 R.sup.2 is a C.sub.4 -C.sub.8 alkyl radical, and PA0 N is an integer of from 2 to 6, are used as foam-inhibiting additives for low-foam cleaning compositions.