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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 (24-4, Anesakikaigan Ichihara-sh, Chiba 07, 2990107, JP)
Application Number:
JP2007/068683
Publication Date:
April 03, 2008
Filing Date:
September 26, 2007
Export Citation:
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Assignee:
IDEMITSU KOSAN CO., LTD. (1-1 Marunouchi 3-chome, Chiyoda-ku Tokyo, 21, 1008321, JP)
出光興産株式会社 (〒21 東京都千代田区丸の内三丁目1番1号 Tokyo, 1008321, JP)
International Classes:
C10M169/04; C10M105/06; 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:
JP2001172660A2001-06-26
JP2006117733A2006-05-11
JPH1135960A1999-02-09
JP2003055681A2003-02-26
JP2003147379A2003-05-21
JP2002194376A2002-07-10
Other References:
See also references of EP 2067845A1
Attorney, Agent or Firm:
OHTANI, Tamotsu et al. (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg.6F. 25-2, Toranomon 3-chome, Minato-k, Tokyo 01, 1050001, JP)
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