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:
Jan. 12, 2016
Filed:
Mar. 15, 2013
Applicants:
Patrick J. Mcdougall, Fairfax, CA (US);
Pritesh A. Patel, Novato, CA (US);
Inventors:
Patrick J. McDougall, Fairfax, CA (US);
Pritesh A. Patel, Novato, CA (US);
Assignee:
Chevron Oronite Company LLC, San Ramon, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 145/04 (2006.01); C08F 8/46 (2006.01); C08K 5/1539 (2006.01); C08F 8/10 (2006.01); C08K 5/01 (2006.01); C08K 5/05 (2006.01); C10M 145/10 (2006.01);
U.S. Cl.
CPC ...
C10M 145/04 (2013.01); C08F 8/10 (2013.01); C08F 8/46 (2013.01); C08K 5/01 (2013.01); C08K 5/05 (2013.01); C08K 5/1539 (2013.01); C10M 145/10 (2013.01);
Abstract
Disclosed is an oil-soluble lubricating oil additive composition, suitable for use as a dispersant viscosity index improver in lubricating oils; prepared by the process which comprises reacting a hydrocarbon polymer having a number average molecular weight (M) between about 7,000 and about 500,000 wherein the polymer backbone has been functionalized with an ethylenically unsaturated acylating agent and a hydroxyl-linked polycyclic fused ring component.