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:
Oct. 03, 2023
Filed:
Jul. 14, 2020
Adeka Corporation, Tokyo, JP;
Dic Corporation, Tokyo, JP;
Shinji Iino, Tokyo, JP;
Akihiro Kotaka, Tokyo, JP;
Eiji Katsuno, Tokyo, JP;
Hironobu Matsueda, Ibaraki, JP;
Hiroshi Sakata, Ibaraki, JP;
ADEKA CORPORATION, Tokyo, JP;
DIC CORPORATION, Tokyo, JP;
Abstract
The present invention provides a lubricating oil additive, including: a molybdenum compound (A) represented by the following general formula (1); and a sulfur-based composition (B) containing a sulfur-based compound (b-1) represented by the following general formula (2) and at least one kind of sulfur-based compound (b-2) represented by the following general formula (3) or (4), and a lubricating oil composition containing the additive. In the formula (1), Rto Reach represent alkyl groups having 6 to 18 carbon atoms, the groups being identical to or different from each other, and Xto Xeach independently represent an oxygen atom or a sulfur atom. In the formula (2), Rrepresents an alkyl group having 1 to 22 carbon atoms, Rrepresents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, Rrepresents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, and 'a' represents a number from 1 to 10. In the formulae (3) and (4), Rto Reach represent alkylene groups having 1 to 28 carbon atoms, the groups being identical to or different from each other, Rand Reach independently represent a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, and 'b' and “c” each independently represent a number from 1 to 8, provided that at least one of Ror Rrepresents an alkyl group having 1 to 3 carbon atoms.