LUBRICATING OIL COMPOSITION

Title:

LUBRICATING OIL COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2017/217299

Kind Code:

A1

Abstract:

[Problem] To provide a lubricating oil composition having excellent biodegradability, high biodegradability, excellent rust-proofing performance, high oxidation stability, and excellent lubricity (abrasion resistance). [Solution] A lubricating oil composition containing 0.05-1.5 parts by mass of an acid phosphate ester amine salt (B) and 0.1-0.50 parts by mass of a monoester compound (C), relative to 100 parts by mass of an ester compound (A). (A): An ester compound of trimethylolpropane and a C8-10 linear saturated fatty acid, for which TMPmol%: FAmol%:ADmol% = 20%-40%:40%-70%:5%-25%, when the molar percentage for a trimethylolpropane-derived constituent component is TMPmol%, the molar percentage for a C8-10 linear saturated fatty acid-derived constituent component is FAmol%, and the molar percentage for an adipic acid is ADmol%. (B): An acid phosphate ester amine salt indicated by formula (1) (n being an integer of 1 or 2, R' being a C4-6 alkyl group, and R'' being hydrogen or a C11-14 alkyl group.)(C): A monoester compound of a C3-8 alkanediol and a succinic acid having a C8-18 alkyl group or a C8-18 alkenyl group.

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Inventors:

KAWAMOTO HIDEKI (JP)
MONJIYAMA SHUNSUKE (JP)

Application Number:

PCT/JP2017/021120

Publication Date:

December 21, 2017

Filing Date:

June 07, 2017

Export Citation:

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Assignee:

NOF CORP (JP)

International Classes:

C10M169/04; C10M105/42; C10M129/76; C10M137/08; C10N30/06; C10N30/10; C10N30/12; C10N40/02; C10N40/04; C10N40/08

Foreign References:

JP2013053227A	2013-03-21
JP2014055284A	2014-03-27
JP2012102235A	2012-05-31
JP2010535870A	2010-11-25
JPS58222193A	1983-12-23

Other References: