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:
Dec. 04, 2018
Filed:
Feb. 02, 2018
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventor:
Yungwan Kwak, Glen Allen, VA (US);
Assignee:
Afton Chemical Corporation, Richmond, VA (US);
Primary Examiner:
Int. Cl.
CPC ...
C10M 151/02 (2006.01); C10M 169/04 (2006.01); C08F 293/00 (2006.01);
U.S. Cl.
CPC ...
C10M 151/02 (2013.01); C08F 293/005 (2013.01); C10M 169/041 (2013.01); C08F 2438/03 (2013.01); C08F 2800/10 (2013.01); C10M 2203/003 (2013.01); C10M 2221/02 (2013.01); C10N 2220/021 (2013.01); C10N 2220/022 (2013.01); C10N 2230/02 (2013.01);
Abstract
The present disclosure relates to star polymers and, in some approaches, star polymers suitable for use as viscosity index improvers in lubricating oil compositions. The present disclosure further relates to oil compositions comprising such polymers. The disclosure also relates to star polymer compositions derived from a sulfur functionalized chain transfer agent core and select (meth)acrylate monomers.