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:
Jul. 23, 2024
Filed:
Aug. 27, 2019
Applicants:
Kao Corporation, Tokyo, JP;
Chemeor, Inc., Covina, CA (US);
Inventors:
Assignees:
KAO CORPORATION, Tokyo, JP;
CHEMEOR, INC., Covina, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/54 (2006.01); C09K 15/18 (2006.01); C09K 15/26 (2006.01); C23F 11/14 (2006.01); C23F 11/16 (2006.01);
U.S. Cl.
CPC ...
C09K 8/54 (2013.01); C09K 15/18 (2013.01); C09K 15/26 (2013.01); C23F 11/141 (2013.01); C23F 11/149 (2013.01); C23F 11/165 (2013.01); C09K 2208/32 (2013.01);
Abstract
A method of inhibiting corrosion of metal in contact with a corrosive mixture in an oil or gas field environment involving introducing a corrosion inhibitor composition into the corrosive mixture, the corrosion inhibitor composition including a nitrogen-containing compound having an alkyl amine group or an alkyl quaternary ammonium salt group, and at least one sulfur-containing compound selected from the group consisting of mercaptobenzothiazole, mercaptobenzoimidazole, a thioglycol compound, and a thiourea compound.