Title:
LUBRICATION OIL COMPOSITION AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2020/194542
Kind Code:
A1
Abstract:
The present invention is a lubrication oil composition which is characterized by containing (A) a liquid random copolymer of ethylene and an α-olefin, which is produced by a specific method and (F) a sulfur-containing compound wherein at least one hydrocarbon group that is adjacent to a sulfur atom is a secondary or tertiary hydrocarbon group, while containing, as an optional component, (G) a polymer of an α-olefin having 3-6 carbon atoms, and which is also characterized in that: the kinematic viscosity at 40°C is 450-51,000 mm2/s; the content of sulfur is 0.1-5 parts by weight; and the content of the component (G) is 0-15 parts by weight. This lubrication oil composition is especially suitable for gear oils and the like.
Inventors:
ABE SHOTA (JP)
Application Number:
PCT/JP2019/012997
Publication Date:
October 01, 2020
Filing Date:
March 26, 2019
Export Citation:
Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C10M107/02; C10M161/00; C10M169/04; C10M101/02; C10M105/32; C10M135/20; C10M143/00; C10N20/00; C10N20/02; C10N30/02; C10N30/06; C10N40/04
Domestic Patent References:
WO2013154005A1 | 2013-10-17 | |||
WO2015147215A1 | 2015-10-01 | |||
WO2000034420A1 | 2000-06-15 |
Foreign References:
JP2016069406A | 2016-05-09 | |||
JP2016188318A | 2016-11-04 | |||
US20090088543A1 | 2009-04-02 | |||
US4960878A | 1990-10-02 | |||
US5041584A | 1991-08-20 | |||
KR100551147B1 | 2006-02-13 | |||
JPH01501950A | 1989-07-06 | |||
JPH03179005A | 1991-08-05 | |||
JPH03179006A | 1991-08-05 | |||
JPH03207703A | 1991-09-11 | |||
JPH03207704A | 1991-09-11 | |||
US5321106A | 1994-06-14 | |||
JP2004051676A | 2004-02-19 | |||
US3909432A | 1975-09-30 |
Other References:
TOSOH FINECHEM CORPORATION, TOSOH RESEARCH TECHNOLOGY REVIEW, vol. 47, 2003, pages 55
See also references of EP 3950894A4
See also references of EP 3950894A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
Download PDF:
Previous Patent: INSPECTION DEVICE
Next Patent: LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME
Next Patent: LUBRICATING OIL COMPOSITION FOR INTERNAL COMBUSTION ENGINES AND METHOD FOR PRODUCING SAME