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. 27, 2025
Filed:
Apr. 28, 2020
Applicant:
Ecolab Usa Inc., St. Paul, MN (US);
Inventors:
Ashish Dhawan, Aurora, IL (US);
Abuzar Syed, Richmond, TX (US);
Janelle Pennington, Missouri City, TX (US);
Assignee:
Ecolab USA Inc., St. Paul, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07C 217/76 (2006.01); C07C 213/08 (2006.01); C10L 1/223 (2006.01);
U.S. Cl.
CPC ...
C07C 217/76 (2013.01); C07C 213/08 (2013.01); C10L 1/2235 (2013.01); C10L 2230/081 (2013.01);
Abstract
Described are compounds, compositions, and methods that include oxygenated aromatic amines, such as an aminophenol-, phenyl-p-phenylenediamine-, and diaminobenzene-based compound useful as antioxidants. The oxygenated aromatic amine includes a secondary and/or tertiary amine group having a nitrogen that is attached to one or two carbon-containing group(s), the carbon-containing group(s) having a hydroxyl and/or ether group separated from the nitrogen by one or more carbon atoms.