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:
Aug. 04, 2020
Filed:
May. 04, 2018
Applicant:
Infineum International Limited, Abingdon, GB;
Inventors:
Rajiv R. Taribagil, Edison, NJ (US);
Stuart A. Taylor, Reading, GB;
Stuart Briggs, Edison, NJ (US);
Laurent Chambard, Englewood, NJ (US);
Assignee:
INFINEUM INTERNATIONAL LIMITED, Abingdon, Oxfordshire, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/02 (2006.01); C10M 143/12 (2006.01); C10M 105/32 (2006.01); C10M 119/02 (2006.01); C10M 119/24 (2006.01); C10M 169/04 (2006.01); C10M 101/02 (2006.01);
U.S. Cl.
CPC ...
C10M 169/02 (2013.01); C10M 101/02 (2013.01); C10M 105/32 (2013.01); C10M 119/02 (2013.01); C10M 119/24 (2013.01); C10M 143/12 (2013.01); C10M 169/041 (2013.01); C10M 2203/0206 (2013.01); C10M 2203/1025 (2013.01); C10M 2205/04 (2013.01); C10M 2205/06 (2013.01); C10M 2207/2835 (2013.01); C10M 2217/06 (2013.01); C10N 2220/027 (2013.01); C10N 2220/029 (2013.01); C10N 2230/02 (2013.01); C10N 2270/02 (2013.01);
Abstract
A viscosity index improver containing, in non-ester diluent oil, one or more hydrogenated, functionalized linear block copolymers having at least one block derived from monoalkenyl arene covalently linked to at least one block derived from diene in an amount that is greater than the critical overlap concentration (c*), in mass %, for the linear block copolymers in the diluent oil; and an amount of ester base stock.