Title:
LUBRICATING OIL COMPOSITION
Document Type and Number:
Japanese Patent JP2012046606
Kind Code:
A
Abstract:
To provide a lubricating oil composition capable of exerting high defoaming property over a long period of time.
The lubricating oil composition contains a defoamant having a kinematic viscosity at 25°C of 1,000 cSt or more, and a base oil, wherein the defoamant is dispersed by shearing a mixture that contains the defoamant and the base oil at a shear rate within a range of 4.8×103 to 8.0×103 1/second.
Inventors:
KANEKO TOYOJI
Application Number:
JP2010189209A
Publication Date:
March 08, 2012
Filing Date:
August 26, 2010
Export Citation:
Assignee:
TOYOTA MOTOR CORP
International Classes:
C10M177/00; C10M101/02; C10M155/02; C10M169/04; C10N20/02; C10N30/18; C10N40/25; C10N70/00
Domestic Patent References:
JP2008120996A | 2008-05-29 | |||
JPH0841480A | 1996-02-13 |
Other References:
新版石油製品添加剤, JPN6014010093, 25 July 1986 (1986-07-25), JP, pages 301 - 317, ISSN: 0002764466
Attorney, Agent or Firm:
Yusuke Hiraki
Satoshi Fujita
Shinji Endo
Satoshi Fujita
Shinji Endo