LUBRICANT COMPOSITION - MITSUI CHEMICALS INC

Title:

LUBRICANT COMPOSITION

Document Type and Number:

WIPO Patent Application WO/2016/039295

Kind Code:

A1

Abstract:

[Problem] To provide a lubricant having both exceptional shear stability and low-temperature viscosity characteristics from the standpoint of fuel economy and energy savings in automobiles and industrial machinery. [Solution] A lubricant composition containing (A) a lubricant base oil having a kinematic viscosity of 1-10 mm2/s at 100°C, and (B) an ethylene-α-olefin copolymer having (B1) a peak top molecular weight of 3,000-10,000, (B2) no melting peak, (B3) a B value of 1.1 or higher, and (B4) a kinematic viscosity of 140-500 mm2/s at 100°C, the lubricant composition having a kinematic viscosity of 20 mm2/s or lower at 100°C and a peak top at a molecular weight of 3,000-10,000, the weight fraction of components having a molecular weight of 20,000 with respect to high-molecular-weight components having at least the molecular weight giving this peak top being 1-10%.

Inventors:

ABE SHOTA (JP)
KANESHIGE RYOUSUKE (JP)

Application Number:

PCT/JP2015/075338

Publication Date:

March 17, 2016

Filing Date:

September 07, 2015

Export Citation:

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Assignee:

MITSUI CHEMICALS INC (JP)

International Classes:

C10M143/00; C10M143/04; C10N20/02; C10N20/04; C10N30/02; C10N30/06; C10N40/04

Domestic Patent References:

WO2012070240A1

2012-05-31

Foreign References:

JP2000351813A	2000-12-19
JPS62121710A	1987-06-03
JP2002356692A	2002-12-13
US20030013623A1	2003-01-16

Other References: