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Patent Searching and Data


Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2019/139152
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a lubricating oil composition that includes a synthetic base oil, is compatible with the physical properties of oil-sealing rubbers, and can suppress oil leakage. A lubricating oil composition that contains (A) a lubricating base oil, (B) a sulfur-based extreme pressure agent, and (C) a phosphorous-based extreme pressure agent, the lubricating oil composition being characterized by containing, as (A) the lubricating base oil, 1–20 mass%, relative to the total mass of the lubricating oil composition, of at least (A-1) a diester of a C4–12 aliphatic dicarboxylic acid and a C1–20 monovalent alcohol.

Inventors:
UMAMORI, Nobuharu (Tribology Research Center 6-1, Ukishima-cho, Kawasaki-ku, Kawasaki-sh, Kanagawa 26, 〒2109526, JP)
MORI, Takafumi (Tribology Research Center 6-1, Ukishima-cho, Kawasaki-ku, Kawasaki-sh, Kanagawa 26, 〒2109526, JP)
KISHI, Misato (1 Toyotacho, Toyota-sh, Aichi 71, 〒4718571, JP)
HIRAGA, Kotaro (1 Toyotacho, Toyota-sh, Aichi 71, 〒4718571, JP)
SHINYOSHI, Takatoshi (1 Toyotacho, Toyota-sh, Aichi 71, 〒4718571, JP)
Application Number:
JP2019/000796
Publication Date:
July 18, 2019
Filing Date:
January 11, 2019
Export Citation:
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Assignee:
EXXONMOBIL RESEARCH AND ENGINEERING COMPANY (1545 Route 22 East, Annandale New Jersey, 08801, US)
TOYOTA JIDOSHA KABUSHIKI KAISHA (1 Toyotacho, Toyota-shi Aichi, 71, 〒4718571, JP)
International Classes:
C10M169/04; C10M105/04; C10M105/36; C10M107/02; C10M135/04; C10M137/02; C10M137/08; C10M137/10; C10N20/02; C10N30/00; C10N30/06; C10N40/04
Domestic Patent References:
WO1998004658A11998-02-05
Foreign References:
JP2012520350A2012-09-06
JP2013505329A2013-02-14
JPH05500382A1993-01-28
JP2009126871A2009-06-11
JP2000073078A2000-03-07
Attorney, Agent or Firm:
AOKI, Atsushi et al. (SEIWA PATENT & LAW, Toranomon 37 Mori Bldg. 5-1, Toranomon 3-chome, Minato-k, Tokyo 23, 〒1058423, JP)
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