Title:
LUBRICATING OIL ADDITIVE COMPOSITION AND LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2022/145462
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing: a lubricating oil additive composition that is suitable as a load-withstanding additive and that has excellent abrasion resistance, extreme pressure properties, and thermal stability; and a lubricating oil composition containing said lubricating oil additive composition. Said problem is solved by a lubricating oil additive composition containing a poly(meth)acrylate-based copolymer (X) that includes a structural unit (a) derived from a specific alkyl(meth)acrylate (A), a structural unit (b) derived from a specific hydroxyl group-containing (meth)acrylate (B), and a structural unit (c) derived from a specific phosphorus-containing (meth)acrylate (C).
Inventors:
YOSHIDA YUKIO (JP)
KATO SHOTA (JP)
KAMIMURA HIDETO (JP)
KATO SHOTA (JP)
KAMIMURA HIDETO (JP)
Application Number:
PCT/JP2021/048899
Publication Date:
July 07, 2022
Filing Date:
December 28, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M145/14; C08F220/28; C08F236/20; C08L33/04; C08L91/00; C10N30/06; C10N30/08; C10N40/00; C10N40/02; C10N40/04; C10N40/06; C10N40/08; C10N40/12; C10N40/25; C10N40/30
Domestic Patent References:
| WO2019031404A1 | 2019-02-14 | |||
| WO2016043334A1 | 2016-03-24 | |||
| WO2001038449A1 | 2001-05-31 |
Foreign References:
| JP2014091767A | 2014-05-19 | |||
| JP2014125570A | 2014-07-07 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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