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:
Jun. 01, 2021
Filed:
Aug. 29, 2018
Applicant:
Ecolab Usa Inc., Saint Paul, MN (US);
Inventors:
Ashish Dhawan, Saint Paul, MN (US);
Jeremy Moloney, Saint Paul, MN (US);
Carter M. Silvernail, Saint Paul, MN (US);
Boyd A. Laurent, Saint Paul, MN (US);
Assignee:
Ecolab USA Inc., Saint Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C02F 5/12 (2006.01); C23F 11/14 (2006.01); C07F 9/54 (2006.01); C11D 7/32 (2006.01); C23F 11/10 (2006.01); C07C 231/12 (2006.01); C07C 237/06 (2006.01); C11D 1/62 (2006.01); C11D 3/386 (2006.01); C02F 1/68 (2006.01);
U.S. Cl.
CPC ...
C02F 5/12 (2013.01); C07C 231/12 (2013.01); C07C 237/06 (2013.01); C07F 9/5407 (2013.01); C11D 1/62 (2013.01); C11D 3/386 (2013.01); C11D 7/3254 (2013.01); C11D 7/3263 (2013.01); C23F 11/10 (2013.01); C23F 11/141 (2013.01); C23F 11/149 (2013.01); C02F 1/683 (2013.01); C02F 2303/08 (2013.01); C02F 2305/04 (2013.01);
Abstract
Disclosed herein are the methods of using di-cationic or di-anionic compounds, which are derived from primary amine through an aza-Michael addition with an activated olefin, in a corrosion control composition to mitigate corrosion of a surface in a water system. The disclosed methods or compositions are found to be more effective than those methods or compositions including commonly used single quaternary compounds for mitigating corrosion for a metal surface in water systems.