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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 4522740 B1

PDFFull Text
Date of Patent:
Jun. 11, 1985

Filed:

Apr. 18, 1984

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

Applicant:
Inventors:

Karl Schmid, Mettmann, DE;

Horst Baumann, Leichlingen, DE;

Jurgen Geke, Dusseldorf, DE;

Hans-Gunther Germscheid, Hosel, DE;

Werner Ludecke, Erkrath, DE;

Robert Piorr, Ratingen, DE;

Christian Rossmann, Langenfeld, DE;

Rolf Scharf, Monheim, DE;

Hans-Joachim Schlussler, Haan, DE;

Assignee:

Henkel Kommanditgesellschaft, Dusseldorf, DE;

Attorneys:

Szoke; Ernest G.

Littell, Jr.; Nelson

Millson, Jr.; Henry E.

Primary Examiner:

Paul Lieberman

Assistant Examiner:

Hoa Van Le

Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
25217421 ; 252156 ; 252321 ; 252358 ; 568606 ; 568613 ;
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.

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Schmid, Karl. (1985). Polyglycol ethers as foam-inhibiting additives in low-foam cleaning (U.S. Patent No. 4522740). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4522740

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