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Title:
LUBRICATING OIL ADDITIVE AND METHOD FOR PRODUCING LUBRICATING OIL ADDITIVE
Document Type and Number:
WIPO Patent Application WO/2018/155601
Kind Code:
A1
Abstract:
This lubricating oil additive is to be added to a lubricating oil, and is characterized by containing: a polyol ester synthetic base oil that is contained in an amount of 30.0-60 wt% in the lubricating oil additive; a sulfonic acid calcium salt that is contained in an amount of 5.0-30.0 wt% in the lubricating oil additive, that has calcite crystal structure, and that contains calcium carbonate; a poly-alpha-olefin oligomer; a zinc dithiophosphate antioxidant; a succinic acid imide; a thiadiazole extreme pressure agent; and a phenolic antioxidant.

Inventors:
SONODA TOMOYUKI (JP)
Application Number:
PCT/JP2018/006596
Publication Date:
August 30, 2018
Filing Date:
February 22, 2018
Export Citation:
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Assignee:
SONODA CO LTD (JP)
International Classes:
C10M169/04; C10M177/00; C10M105/38; C10M129/10; C10M133/16; C10M133/56; C10M135/10; C10M135/36; C10M137/10; C10M143/08; C10N10/04; C10N30/00; C10N40/04; C10N40/25; C10N70/00
Domestic Patent References:
WO2011093295A12011-08-04
Foreign References:
US6107259A2000-08-22
JP2012201833A2012-10-22
JPH10183154A1998-07-14
JPH04342794A1992-11-30
JP2017031602A2017-02-09
JP2016210941A2016-12-15
JP2016011384A2016-01-21
Other References:
See also references of EP 3587542A4
Attorney, Agent or Firm:
OHTSUBO Tsutomu (JP)
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