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:
Apr. 25, 2023
Filed:
May. 22, 2018
Applicant:
Bl Technologies, Inc., Minnetonka, MN (US);
Inventor:
Paul Robert Frail, Trevose, PA (US);
Assignee:
BL Technologies, Inc., Minnetonka, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 15/12 (2006.01); C02F 5/10 (2023.01); C08L 33/02 (2006.01); C09K 15/06 (2006.01); C23F 11/173 (2006.01); C02F 103/02 (2006.01);
U.S. Cl.
CPC ...
C09K 15/12 (2013.01); C02F 5/105 (2013.01); C08L 33/02 (2013.01); C09K 15/06 (2013.01); C23F 11/173 (2013.01); C02F 2103/023 (2013.01); C02F 2303/08 (2013.01);
Abstract
Methods are provided to inhibit corrosion in low hardness water systems. The corrosion inhibiting treatment comprises: calcium salts of low molecular weight polymer polycarboxylic acids. These calcium salts may be added preformed to the water system in need of treatment or formed in-situ in the system. This method of corrosion inhibition is not a source of addition phosphorous or heavy metal to the treated system.