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:
May. 29, 1990
Filed:
Nov. 04, 1988
Applicant:
Inventors:
Patricia A Reardon, Downers Grove, IL (US);
David A Grattan, La Grange Highlands, IL (US);
Assignee:
Nalco Chemical Company, Naperville, IL (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C02F / ;
U.S. Cl.
CPC ...
210750 ; 210757 ; 252178 ; 25218828 ; 252393 ; 252404 ;
Abstract
An aqueous concentrate useful for treating boiler waters to scavenge oxygen therefrom which contains at least 0.3% by weight of either gallic acid or propyl gallate. This aqueous concentrate has a pH adjusted to at least 8.5 by a water-soluble neutralizing amine of the type used to treat boiler waters. Additionally, a method for treating boiler waters with an oxygen scavenger.
Reardon, Patricia. (1990). Amine/gallic acid blends as oxygen scavengers (U.S. Patent No. 4929364). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4929364
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile