Document Type and Number:
Japanese Patent JP4354157
Kind Code:
B2
Abstract:
To provide a liquid lubricant which has a high flash point in spite of having a low viscosity and has low evaporability and excellent heat resistance, to provide a lubricant composition, and to provide an oil for a sintered oil-impregnated bearing or an oil for a fluid bearing.
The liquid lubricant comprises 21-29C hydrocarbons and has a kinematic viscosity (40°C) of 6-16 mm2/s, a kinematic viscosity (100°C) of 4.9 mm2/s or lower, a flash point of 180°C or higher, and a pour point of -15°C or lower. The lubricant composition is prepared by adding (B) at least one additive selected from among an antioxidant, a friction modifier, a dispersant, a corrosion inhibitor, a metal inactivator, a defoaming agent, a viscosity index improver, and a thickener to (A) the liquid lubricant. The sintered oil-impregnated bearing oil or the fluid bearing oil comprises the liquid lubricant or the lubricant composition.
COPYRIGHT: (C)2004,JPO
Inventors:
Hideto Uemura
Tatsuya Egawa
Application Number:
JP2002209014A
Publication Date:
October 28, 2009
Filing Date:
July 18, 2002
Assignee:
IDEMITSU KOSAN CO.,LTD.
International Classes:
C10M105/04; C10M117/02; C10M117/04; C10M133/12; C10M137/04; C10M137/08; C10M169/02; C10M169/04; C10N10/02; C10N10/04; C10N20/00; C10N20/02; C10N40/02; C10N50/10
Domestic Patent References:
| JP2001172656A | | | | |
| JP10036870A | | | | |
| JP7053984A | | | | |
Other References:
ペトロテック,1985年,Vol.8, No.2,p.159-164
Attorney, Agent or Firm:
Tamotsu Otani
