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Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
WIPO Patent Application WO/2018/021570
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a lubricating oil composition that can suppress wear of bearings and the like and scoring of gear teeth surfaces and the like even at low viscosity. Provided is a lubricating oil composition that includes a lubricating oil base oil, a sulfur-based extreme pressure agent, and a phosphorus-based extreme pressure agent, wherein the lubricating oil composition is characterized in that: the quantity of active sulfur in the sulfur-based extreme pressure agent is 5-30% by mass; the sulfur-based extreme pressure agent is included in the composition at a quantity of 5-15% by mass relative to the mass of the entire lubricating oil composition; and the phosphorus-based extreme pressure agent is included in the composition at a quantity of 1.5-8% by mass relative to the mass of the entire lubricating oil composition.

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Inventors:
UMAMORI, Nobuharu (6-1 Ukishima-cho, Kawasaki-ku, Kawasaki-sh, Kanagawa 26, 〒2109526, JP)
UENO, Kenji (1 Toyotacho, Toyota-sh, Aichi 71, 〒4718571, JP)
HIRAGA, Kotaro (1 Toyotacho, Toyota-sh, Aichi 71, 〒4718571, JP)
Application Number:
JP2017/027565
Publication Date:
February 01, 2018
Filing Date:
July 28, 2017
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:
C10M141/10; C10M169/04; C10M105/04; C10M107/02; C10M135/04; C10M137/04; C10M137/08; C10M137/10; C10N20/02; C10N30/00; C10N30/06; C10N40/04
Domestic Patent References:
2016-02-11
2017-08-03
Foreign References:
JP2002003879A2002-01-09
US20110003724A12011-01-06
JP2007039480A2007-02-15
JPH06200270A1994-07-19
JPH0232195A1990-02-01
JPH04255794A1992-09-10
JP2004217797A2004-08-05
JP2007131856A2007-05-31
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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