Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2021/193443
Kind Code:
A1
Abstract:
The present invention addresses the problem of providing a lubricating oil composition having excellent long-term defoaming performance and cleanliness despite being compounded with a silicone-based defoaming agent. The problem was overcome by a lubricating oil composition containing a base oil (A) and a silicone-based defoaming agent (B), wherein the lubricating oil composition has a silicon atom content of 50 to 4,000 mass ppb based on the total amount of lubricating oil composition.
Inventors:
YOKOYAMA SHO (JP)
Application Number:
PCT/JP2021/011432
Publication Date:
September 30, 2021
Filing Date:
March 19, 2021
Export Citation:
Assignee:
IDEMITSU KOSAN CO (JP)
International Classes:
C10M169/04; C10M101/02; C10M139/04; C10M155/02; C10N30/04; C10N30/18; C10N40/04; C10N40/08; C10N40/12; C10N40/22; C10N40/25; C10N40/30
Foreign References:
| JP2008120996A | 2008-05-29 | |||
| JP2009138037A | 2009-06-25 | |||
| JP2001508357A | 2001-06-26 | |||
| JPH11209778A | 1999-08-03 | |||
| JPS4519249B1 | 1970-07-01 |
Other References:
See also references of EP 4130212A4
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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