LUBRICANT BASE OIL, LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE AND LUBRICANT COMPOSITION FOR DRIVING FORCE TRANSMITTING DEVICE

Title:

LUBRICANT BASE OIL, LUBRICANT COMPOSITION FOR INTERNAL COMBUSTION ENGINE AND LUBRICANT COMPOSITION FOR DRIVING FORCE TRANSMITTING DEVICE

Document Type and Number:

WIPO Patent Application WO/2006/073198

Kind Code:

A1

Abstract:

Disclosed is a lubricant base oil characterized by satisfying at least one of the following conditions (a) and (b). (a) The saturated fraction is contained in an amount of not less than 95% by mass, and the cyclic saturated component in the saturated fraction is 0.1-10% by mass. (b) The condition represented by the following formula (1) is satisfied. 1.435 ≤ n₂₀ - 0.002 × kv100 ≤ 1.450 (1) [In the formula, n₂₀ represents the refractive index of the lubricant base oil at 20&ring C and kv100 represents the kinematic viscosity (mm²/s) of the lubricant base oil at 100&ring C.]

Inventors:

SANO TAKASHI (JP)
KOMATSUBARA HITOSHI (JP)
WADA HISAYUKI (JP)
KUROSAWA OSAMU (JP)
ITOU MASAAKI (JP)
MATSUI SHIGEKI (JP)
TAKAHASHI MASATO (JP)
FU KAI (JP)
SHIRAHAMA SHINICHI (JP)
SUGIURA IZURU (JP)
TAGUCHI MASAHIRO (JP)
KONISHI SHOZABURO (JP)

Application Number:

PCT/JP2006/300149

Publication Date:

July 13, 2006

Filing Date:

January 10, 2006

Export Citation:

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Assignee:

NIPPON OIL CORP (JP)
PETROLEUM ENERGY CENTER FOUND (JP)
SANO TAKASHI (JP)
KOMATSUBARA HITOSHI (JP)
WADA HISAYUKI (JP)
KUROSAWA OSAMU (JP)
ITOU MASAAKI (JP)
MATSUI SHIGEKI (JP)
TAKAHASHI MASATO (JP)
FU KAI (JP)
SHIRAHAMA SHINICHI (JP)
SUGIURA IZURU (JP)
TAGUCHI MASAHIRO (JP)
KONISHI SHOZABURO (JP)

International Classes:

C10M171/00; C10M101/02; C10N20/00; C10N20/02; C10N30/02; C10N30/06; C10N30/08; C10N30/10; C10N40/04; C10N40/25

Foreign References:

JPS5140384A	1976-04-05
JP2003505533A	2003-02-12
JP2004521976A	2004-07-22
JP2004521977A	2004-07-22
JP2004522848A	2004-07-29

Other References: