Kathleen D Cooper

US Patent:

20190086383, Mar 21, 2019

Filed:

Sep 6, 2018

Appl. No.:

16/123089

Inventors:

- Annandale NJ, US
Kathleen K. COOPER - South River NJ, US
Spyridon KORRES - Hamburg, DE
Samuel FLORES-TORRES - Burlington NJ, US
Bhaskar PRABHAKAR - Mount Laurel NJ, US
Erik HERZ - Conroe TX, US

International Classification:

G01N 33/28
G01N 21/25
G01N 33/30
G01N 27/60

Abstract:

Methods are provided for in-situ detection of varnish and/or deposit precursors in a lubricant in a lubricating environment. An electrostatic accumulator can be used within a lubricating environment to enhance accumulation of varnish and/or deposit precursors on portions of the electrostatic accumulator. The deposits accumulated on the electrostatic accumulator can then be characterized in-situ. The potential difference across portions of the electrostatic accumulator can cause an enhanced rate of deposit accumulation on the electrostatic accumulator, which can facilitate characterization of the tendency of a lubricant to accumulate deposits in the lubricating environment.

US Patent:

20170183595, Jun 29, 2017

Filed:

Dec 20, 2016

Appl. No.:

15/384421

Inventors:

- Annandale NJ, US
Halou Oumar-Mahamat - Belle Mead NJ, US
Hong Cheng - Bridgewater NJ, US
David A. Blain - Cherry Hill NJ, US
Kathleen K. Cooper - South River NJ, US
James T. Carey - Medford NJ, US
Michael R. Douglass - Cherry Hill NJ, US
Percy R. Kanga - Cherry Hill NJ, US
Abhimanyu O. Patil - Westfield NJ, US
Satish Bodige - Wayne NJ, US
Kyle G. Lewis - Houston TX, US
Mark P. Hagemeister - Mullica Hill NJ, US

International Classification:

C10M 105/34
C07C 69/26

Abstract:

A lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. The lubricating oil base stock has a high temperature high shear (HTHS) viscosity of less than about 1.7 cP as determined by ASTM D4683, and a Noack volatility from about 15 to about 90 percent as determined by ASTM D5800. A lubricating oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein. A method for improving one or more of thermal and oxidative stability, solubility and dispersancy of polar additives, deposit control and traction control in a lubricating oil by using as the lubricating oil a formulated oil containing the lubricating oil base stock including one or more monoesters represented by the formula (I), (II), (III) and (IV) as defined herein.

US Patent:

20140274838, Sep 18, 2014

Filed:

Mar 4, 2014

Appl. No.:

14/196071

Inventors:

Kathleen Kim Cooper - South River NJ, US
Suzzy Chen Hsi Ho - Princeton NJ, US
Gary Christensen - Wenonah NJ, US
Beth A. Winsett - Houston TX, US

Assignee:

ExxonMobil Research and Engineering Company - Annandale NJ

International Classification:

C10M 105/06

US Classification:

508287, 508110, 508591, 585 26

Abstract:

A method for improving thermo-oxidative stability and elastomer compatibility in an apparatus lubricated with a lubricating oil by using as the lubricating oil a formulated oil including a lubricating oil base stock. The lubricating oil base stock includes a di-alkylated aromatic base stock of the formula:wherein each Ris the same or different and represents a C-Calkyl group; Rrepresents an aromatic moiety. The di-alkylated aromatic base stock includes at least 44 wt % dialkylate product. Thermo-oxidative stability and elastomer compatibility are improved as compared to thermo-oxidative stability and elastomer compatibility achieved using a lubricating oil base stock other than the di-alkylated aromatic base stock. A lubricating oil including the di-alkylated base stock of the above formula, and the di-alkylated aromatic base stock of the above formula.