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:
Apr. 25, 2023
Filed:
Mar. 30, 2021
Applicant:
Afton Chemical Corporation, Richmond, VA (US);
Inventors:
Arturo Carranza, Glen Allen, VA (US);
Neil Harris, Richmond, VA (US);
Assignee:
AFTON CHEMICAL CORPORATION, Richmond, VA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 145/14 (2006.01); C10M 149/22 (2006.01); C10M 157/04 (2006.01); C10M 169/04 (2006.01); C10N 20/00 (2006.01); C10N 20/04 (2006.01); C10N 30/04 (2006.01);
U.S. Cl.
CPC ...
C10M 145/14 (2013.01); C10M 149/22 (2013.01); C10M 157/04 (2013.01); C10M 169/041 (2013.01); C10M 2203/003 (2013.01); C10M 2209/084 (2013.01); C10M 2217/046 (2013.01); C10N 2020/04 (2013.01); C10N 2020/071 (2020.05); C10N 2030/04 (2013.01);
Abstract
A multi-grade lubricating oil including a (meth)acrylate polymer with at least two distinct molecular weight arms and a blend of heavier and lighter base oils with increased amounts of the heavier base oil to achieve SAE grade performance. The compositions herein achieve SAE certifications as lower CCS viscosities at target kinematic viscosities for multi-grade oils.