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Title:
LUBRICANT OIL COMPOSITION FOR COMPRESSOR OIL AND METHOD FOR PREPARING SAME
Document Type and Number:
WIPO Patent Application WO/2020/194551
Kind Code:
A1
Abstract:
[Problem] To provide a lubricant oil composition which is for a compressor oil, and which has not only extremely favorable temperature viscosity properties but also good heat-resistant oxidation stability. [Solution] This lubricant oil composition for a compressor oil has a kinematic viscosity at 40 °C of 10-300 mm2/s, and contains: 10-99 mass% of a lubricant base oil (A) having a kinematic viscosity at 100 °C of 1-14 mm2/s, a viscosity index of 100 or more, and a pour point of 0 °C or less; 1-90 mass% of a liquid-phase random copolymer ethylene-α-olefin copolymer (B) formed of ethylene and α-olefin and prepared by using a specific catalyst (the sum of (A) and (B) is 100 mass%).

Inventors:
ABE SHOTA (JP)
Application Number:
PCT/JP2019/013006
Publication Date:
October 01, 2020
Filing Date:
March 26, 2019
Export Citation:
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Assignee:
MITSUI CHEMICALS INC (JP)
International Classes:
C10M143/00; C10M105/32; C10M107/02; C10M169/04
Domestic Patent References:
WO2015147215A12015-10-01
WO2009101936A12009-08-20
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Foreign References:
JP2016069407A2016-05-09
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Other References:
"Illustrated guide to the introductory basics of industrial lubricating oil", 2011, NIKKAN KOGYO SHIMBUN, LTD
"API Publication", April 2002, article "Appendix E", pages: 1509
TOSOH FINECHEM CORPORATION, TOSOH RESEARCH & TECHNOLOGY REVIEW, vol. 47, 2003, pages 55
See also references of EP 3950897A4
Attorney, Agent or Firm:
SSINPAT PATENT FIRM (JP)
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