LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD FOR IMPROVING STORAGE STABILITY OF LUBRICATING OIL ADDITIVE COMPOSITION

Title:

LUBRICATING OIL ADDITIVE COMPOSITION AND METHOD FOR IMPROVING STORAGE STABILITY OF LUBRICATING OIL ADDITIVE COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2012/147732

Kind Code:

A1

Abstract:

The purpose of the present invention is to provide a thiodicarboxylic acid ester which has high long-term storage stability without inhibiting antioxidant properties and wear-resistant properties of the thiodicarboxylic acid ester. In order to achieve the above-mentioned purpose, the present invention provides a lubricating oil additive composition which is characterized by containing a compound (A) represented by general formula (1) and a compound (B) represented by general formula (2) and by having an acid value of 0.01-0.4 mgKOH/g. (In general formula (1), each of R1 and R4 independently represents a hydrocarbon group having 6-18 carbon atoms, and each of R2 and R3 independently represents an alkylene group having 1-4 carbon atoms.) (In general formula (2), R5 represents a hydrocarbon group having 6-18 carbon atoms, and each of R6 and R7 independently represents an alkylene group having 1-4 carbon atoms.)

Inventors:

TATSUMI YUKIO (JP)
MORIIZUMI YUKIYA (JP)
IINO SHINJI (JP)

Application Number:

PCT/JP2012/060954

Publication Date:

November 01, 2012

Filing Date:

April 24, 2012

Export Citation:

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Assignee:

ADEKA CORP (JP)
TATSUMI YUKIO (JP)
MORIIZUMI YUKIYA (JP)
IINO SHINJI (JP)

International Classes:

C10M135/26; C10N20/00; C10N30/06; C10N30/10; C10N40/00; C10N40/02; C10N40/04; C10N40/08; C10N40/12; C10N40/20; C10N40/25; C10N40/30; C10N50/10

Domestic Patent References:

WO2010087398A1

2010-08-05

Foreign References:

JP2010121098A	2010-06-03
US2649416A	1953-08-18
JP2010265397A	2010-11-25
JPS59116472A	1984-07-05
JP2002294267A	2002-10-09
JP2001504142A	2001-03-27

Other References: