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:
Sep. 14, 2021
Filed:
Jul. 08, 2020
Applicants:
SK Innovation Co., Ltd., Seoul, KR;
SK Global Chemical Co., Ltd., Seoul, KR;
Inventors:
Assignees:
SK Innovation Co., Ltd., Seoul, KR;
SK Global Chemical Co., Ltd., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C08F 110/02 (2006.01); C08F 220/06 (2006.01); C10M 101/02 (2006.01); C10M 129/14 (2006.01); C10M 135/36 (2006.01); C08J 3/00 (2006.01);
U.S. Cl.
CPC ...
C10M 169/04 (2013.01); C08F 110/02 (2013.01); C08F 220/06 (2013.01); C10M 101/02 (2013.01); C10M 129/14 (2013.01); C10M 135/36 (2013.01); C08J 3/005 (2013.01);
Abstract
A lubricant composition includes a base oil, a phenothiazine-based polymerization inhibitor, and a polymerization inhibitory accelerator including a hindered phenol-based compound and a hydroquinone-based compound. A self-polymerization in a polymerizing process is suppressed by an interaction between the polymerization inhibitor and the polymerization inhibitory accelerator. A method of preparing a copolymer using the lubricant composition is also provided.