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Title:
LUBRICANT OIL COMPOSITION FOR CONTINUOUSLY VARIABLE TRANSMISSION OF METAL BELT TYPE OR METAL CHAIN TYPE
Document Type and Number:
Japanese Patent JP2004197019
Kind Code:
A
Abstract:

To obtain a lubricant oil composition for a continuously variable transmission of a metal belt or chain type capable of attaining a high transmission torque capacity.

The lubricant oil composition for a continuously variable transmission of a metal belt or chain type is obtained by blending at least one kind of additives selected from the group consisting of an ashless dispersant, an alkaline earth metal-based cleaning agent, a phosphorus-based additive and a sulfur-based extreme pressure agent to a base oil containing a kind or a mixture of two or more kinds selected from the group consisting of a diaryl compound represented by formula (1), a naphthalene compound represented by formula (2) and a biphenyl compound represented by formula (3) (wherein, in formula (1) R denotes a 1-8C alkylene or alkenylene group; R1, R2, R3 and R4 denote each H or a 1-4C alkyl group: in formula (2) R1, R2, R3 and R4 denote each H or a 1-8C alkyl group: in formula (3) R1, R2, R3 and R4 denote each H or a 1-10C alkyl group).


Inventors:
MATSUI SHIGEKI
Application Number:
JP2002369589A
Publication Date:
July 15, 2004
Filing Date:
December 20, 2002
Export Citation:
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Assignee:
NIPPON OIL CORP
International Classes:
C10M169/04; C10M101/02; C10M105/04; C10M105/06; C10M133/06; C10M133/56; C10M135/04; C10M135/06; C10M135/18; C10M135/22; C10M135/36; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M139/00; C10M159/22; C10M159/24; C10N10/04; C10N30/06; C10N40/04; C10N40/32; (IPC1-7): C10M169/04; C10M101/02; C10M105/04; C10M105/06; C10M133/06; C10M133/56; C10M135/04; C10M135/06; C10M135/18; C10M135/22; C10M135/36; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M139/00; C10M159/22; C10M159/24
Attorney, Agent or Firm:
Junyuki Morita