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.:
Date of Patent:
Oct. 13, 1987
Filed:
May. 29, 1986
Applicant:
Inventors:
Terri L Riehm, Bloomington, MN (US);
Robert T Hall, II, Welch, MN (US);
Assignee:
Ecolab, Inc., St. Paul, MN (US);
Primary Examiner:
Int. Cl.
CPC ...
C11D / ; C11D / ;
U.S. Cl.
CPC ...
252142 ; 252545 ; 252546 ; 25217424 ; 252D / ;
Abstract
An aqueous acidic solution for cleaning fiberglass without significant discoloration of the surface thereof comprising a water-soluble organophosphonic acid and/or a water soluble acrylic acid polymer, in combination with a higher (alkyl)betaine surfactant and, optionally an amount of alkaline pH modifying substance effective to adjust the pH to a value within the range of about 3.0-7.0. The preferred (alkyl)betaine is lauramidopropyl betaine. Cleaning results are optimized when the acrylic polymer and organophosphate are combined in a cleaning composition having a pH of about 3.5-4.5.