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. 17, 2015
Filed:
Mar. 12, 2013
Applicant:
Exxonmobil Research and Engineering Company, Annandale, NJ (US);
Inventors:
Kristen Amanda Lyon, West Deptford, NJ (US);
Charles L. Baker, Jr., Thornton, PA (US);
Serge Riffard, Saint Nom la Breteche, FR;
Assignee:
ExxonMobil Research and Engineering Company, Annandale, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 145/14 (2006.01); C10M 105/36 (2006.01); C10G 71/00 (2006.01); C10G 73/38 (2006.01); C10G 73/32 (2006.01); C10M 145/06 (2006.01); C10M 145/16 (2006.01);
U.S. Cl.
CPC ...
C10M 145/14 (2013.01); C10M 145/06 (2013.01); C10M 145/16 (2013.01); C10M 2203/1085 (2013.01); C10M 2209/062 (2013.01); C10M 2209/084 (2013.01); C10M 2209/086 (2013.01); C10N 2220/022 (2013.01); C10N 2230/02 (2013.01); C10N 2240/04 (2013.01); C10N 2240/08 (2013.01); C10N 2240/10 (2013.01); C10N 2240/30 (2013.01); C10N 2240/40 (2013.01); C10N 2250/10 (2013.01);
Abstract
Provided for are lubricant base stocks with improved filterability. The lubricant base stock includes a bright stock or a heavy neutral and an effective amount of a pour point depressant. The filterability of the base stock as measured by the Membrane Filtration Method is less than or equal to 400 seconds. Also provided for are lubricating oils with improved filterability and methods of improving the filterability of lubricant base stocks.