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.

Date of Patent:
Feb. 25, 2025

Filed:

May. 17, 2021
Applicant:

Exxonmobil Technology and Engineering Company, Annandale, NJ (US);

Inventors:

Lisa I. Yeh, Marlton, NJ (US);

Camden N. Henderson, Winder, GA (US);

Percy R. Kanga, Cherry Hill, NJ (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 101/02 (2006.01); C10M 169/04 (2006.01); C10N 20/02 (2006.01); C10N 30/02 (2006.01); C10N 30/10 (2006.01); C10N 40/04 (2006.01); C10N 40/25 (2006.01); C10N 70/00 (2006.01);
U.S. Cl.
CPC ...
C10M 101/02 (2013.01); C10M 169/04 (2013.01); C10M 2203/1006 (2013.01); C10M 2203/1025 (2013.01); C10M 2203/1045 (2013.01); C10N 2020/02 (2013.01); C10N 2030/02 (2013.01); C10N 2030/10 (2013.01); C10N 2040/04 (2013.01); C10N 2040/25 (2013.01); C10N 2070/00 (2013.01);
Abstract

A method for producing a deposit resistant fluid includes combining a base stock and one or more additives to form a blended fluid configured to resist forming deposits in an oxidizing environment. The base stock has a viscosity index of at least 80, and either a kinematic viscosity at 40° C. of at least 320 cSt or a kinematic viscosity at 100° C. of at least 14 cSt. The base stock includes greater than or equal to about 90 wt % saturates, less than or equal to about 10 wt % aromatics, and a sum of terminal/pendant propyl groups and terminal/pendant ethyl groups of at least 1.7 per 100 carbon atoms.


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