LUBRICATING OIL COMPOSITION FOR BUFFERS

Title:

LUBRICATING OIL COMPOSITION FOR BUFFERS

Document Type and Number:

WIPO Patent Application WO/2008/038667

Kind Code:

A1

Abstract:

A lubricating oil composition for buffers in which a base oil comprising a mineral oil and/or a synthetic oil is blended with (A) a phosphate-type compound and/or a phosphite-type compound having a hydrocarbon group carrying 2 to 18 carbon atoms and (B) a secondary amine compound represented by the general formula (I): (I) wherein R1 and R2 represent each an alkyl group carrying 1 to 18 carbon atoms, an alkenyl group carrying 2 to 18 carbon atoms or a cycloalkane structure-containing group carrying 5 to 18 carbon atoms, or these groups may be bonded together to form a cyclic structure having 3 to 6 carbon atoms in the cycle. It is a lubricating oil composition for buffers which elevates the frictional force between seal and steel in an automotive buffer to thereby improve the driving stability during running at high speed and also improve the riding comfort.

Inventors:

KOGA HIDETOSHI (JP)

Application Number:

PCT/JP2007/068683

Publication Date:

April 03, 2008

Filing Date:

September 26, 2007

Export Citation:

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Assignee:

IDEMITSU KOSAN CO (JP)
KOGA HIDETOSHI (JP)

International Classes:

C10M105/06; C10M169/04; C10M105/18; C10M105/36; C10M105/38; C10M105/74; C10M107/02; C10M107/08; C10M133/06; C10M133/44; C10M137/02; C10M137/06; C10N30/00; C10N40/06

Foreign References:

JP2001172660A	2001-06-26
JP2006117733A	2006-05-11
JPH1135960A	1999-02-09
JP2003055681A	2003-02-26
JP2003147379A	2003-05-21
JP2002194376A	2002-07-10

Other References: