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. 07, 2021
Filed:
Nov. 12, 2019
Applicant:
Dl Chemical Co., Ltd., Seoul, KR;
Inventors:
Hyeung Jin Lee, Daejeon, KR;
Jin Hun Ju, Daejeon, KR;
Assignee:
DL Chemical CO., LTD., Seoul, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 107/02 (2006.01); C10M 137/10 (2006.01); C10M 137/12 (2006.01); C10M 143/02 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01); C10N 30/08 (2006.01); C10N 30/10 (2006.01); C10N 40/08 (2006.01);
U.S. Cl.
CPC ...
C10M 169/044 (2013.01); C10M 107/02 (2013.01); C10M 137/105 (2013.01); C10M 137/12 (2013.01); C10M 143/02 (2013.01); C10M 2205/022 (2013.01); C10M 2205/0206 (2013.01); C10M 2223/047 (2013.01); C10M 2223/06 (2013.01); C10N 2030/06 (2013.01); C10N 2030/08 (2013.01); C10N 2030/10 (2013.01); C10N 2030/40 (2020.05); C10N 2040/08 (2013.01);
Abstract
The present invention relates to a lubricant composition, and more particularly to a lubricant composition, which has superior oxidation stability and friction characteristics even under harsh conditions of high temperature and high pressure and is thus suitable for use in hydraulic oil. The lubricant composition of the present invention includes a base oil, a liquid olefin copolymer, a phosphorothioate compound, and phosphonium phosphate.