GEAR OIL COMPOSITION

Japanese Patent JP2005290181

A

To provide a gear oil composition resistant to higher temperatures and withstanding operation under a higher load together with a tendency to a higher speed and a higher output as a gear oil in response to high efficiency and low cost because of requests for gears used for various kinds of industrial machines, specifically a gear oil having excellent sludge-resistant performances and extreme pressure properties.

The gear oil composition is obtained by compounding (A) a phosphorus-containing carboxylic acid compound and/or (B) a phosphorothionate in at least one kind selected from mineral oils, oils and fats and synthetic oils as a base oil. (A) The phosphorus-containing carboxylic acid compound may contain both a carboxyl group and a phosphorus atom in the same molecule and a phosphorylated carboxylic acid is preferable.

TAKIGAWA KATSUYA
BEPPU KOJI
MITSUMOTO SHINICHI

JP2004106664A

October 20, 2005

March 31, 2004

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NIPPON OIL CORP

C10M169/04; C10M101/02; C10M101/04; C10M129/10; C10M129/32; C10M129/40; C10M133/12; C10M133/16; C10M135/36; C10M137/04; C10M137/10; C10M149/02; C10M149/10; C10N10/04; C10N30/04; C10N30/06; C10N30/08; C10N30/10; C10N40/00; C10N40/02; C10N40/04; C10N40/08; C10N40/12; C10N40/30; (IPC1-7): C10M169/04; C10M101/02; C10M101/04; C10M129/10; C10M129/32; C10M129/40; C10M133/12; C10M133/16; C10M135/36; C10M137/04; C10M137/10; C10M149/02; C10M149/10

JP2002338983A	2002-11-27
JPH11217577A	1999-08-10
JP2002265971A	2002-09-18
JPH10338892A	1998-12-22
JP2002294268A	2002-10-09
JPH1067993A	1998-03-10
JP2000063866A	2000-02-29

Teruo Akimoto

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