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. 02, 2024
Filed:
Apr. 01, 2021
Applicant:
Shell Oil Company, Houston, TX (US);
Inventor:
Hiroshi Kaneko, Tokyo, JP;
Assignee:
SHELL USA, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 173/02 (2006.01); C10N 30/06 (2006.01);
U.S. Cl.
CPC ...
C10M 173/02 (2013.01); C10M 2201/02 (2013.01); C10M 2201/062 (2013.01); C10N 2030/06 (2013.01);
Abstract
The present invention provides a water-glycol hydraulic fluid comprising 0.3-0.6% by mass in total of fatty acid sodium salt and/or fatty acid, and 0.3-0.6% by mass of dimerized fatty acid. The water-glycol hydraulic fluid also comprises 20-60% by mass water, 20-60% by mass glycol, 0.01-0.06% by mass alkali hydroxide compound selected from potassium hydroxide and/or sodium hydroxide, and 1.0-5.0% by mass alkanolamine.