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:
Mar. 24, 2020
Filed:
Nov. 01, 2016
Applicant:
The Lubrizol Corporation, Wickliffe, OH (US);
Inventors:
Sashikumar Mettath, Spring, TX (US);
Zen-Yu Chang, Conroe, TX (US);
Assignee:
THE LUBRIZOL CORPORATION, Wickliffe, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C09K 8/24 (2006.01); C09K 8/035 (2006.01); C10M 173/02 (2006.01); C10M 145/38 (2006.01); C10M 129/74 (2006.01);
U.S. Cl.
CPC ...
C09K 8/24 (2013.01); C09K 8/035 (2013.01); C10M 129/74 (2013.01); C10M 145/38 (2013.01); C10M 173/02 (2013.01); C09K 2208/28 (2013.01); C09K 2208/34 (2013.01); C10M 2207/283 (2013.01); C10M 2207/289 (2013.01); C10M 2209/109 (2013.01); C10M 2215/042 (2013.01); C10M 2219/022 (2013.01); C10M 2223/045 (2013.01); C10N 2210/02 (2013.01); C10N 2220/021 (2013.01); C10N 2230/06 (2013.01);
Abstract
The invention relates an additive composition for a drilling fluid, as well as a method of increasing the lubricity and reducing the coefficient of friction of a drilling fluid. The additive composition may further contain a sulfurized olefin and/or a metal dithiophosphate compound, which further enhances the lubricating effect.