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Patent Searching and Data


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:
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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:
WO2013154005A12013-10-17
WO2015147215A12015-10-01
WO2000034420A12000-06-15
Foreign References:
JP2016069406A2016-05-09
JP2016188318A2016-11-04
US20090088543A12009-04-02
US4960878A1990-10-02
US5041584A1991-08-20
KR100551147B12006-02-13
JPH01501950A1989-07-06
JPH03179005A1991-08-05
JPH03179006A1991-08-05
JPH03207703A1991-09-11
JPH03207704A1991-09-11
US5321106A1994-06-14
JP2004051676A2004-02-19
US3909432A1975-09-30
Other References:
TOSOH FINECHEM CORPORATION, TOSOH RESEARCH TECHNOLOGY REVIEW, vol. 47, 2003, pages 55
See also references of EP 3950894A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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