Title:
低硫黄低リン潤滑油組成物
Document Type and Number:
Japanese Patent JP5431641
Kind Code:
B2
Abstract:
The present invention is directed to a low sulfur and low phosphorus lubricating oil composition comprising (a) a major amount of an oil of lubricating viscosity and (b) one or more dispersants (c) one or more anti-oxidants and (d) one or more detergents, wherein the lubricating oil composition is essentially free of zinc di-alkyl di-thiophosphates and contains no more than 0.1 weight percent sulfur and provided the lubricating oil composition does not contain alkylated and non-alkylated aromatic amines and tri-nuclear molybdenum compounds. The present invention is also directed to a low sulfur and low phosphorus lubricating oil composition comprising (a) an oil of lubricating viscosity (b) a borated dispersant and a non-borated dispersant (c) a molybdenum anti-oxidant and a phenolic anti-oxidant and (d) a high overbased and a low overbased calcium sulfonate, wherein the lubricating oil composition is essentially free of zinc di-alkyl di-thiophosphates and contains no more than 0.1 weight percent sulfur and provided the lubricating oil composition does not contain alkylated and non-alkylated aromatic amines and tri-nuclear molybdenum compounds. The present invention is also directed to method for lubricating internal combustion engines, which comprises lubricating the engine with a low sulfur and low phosphorus lubricating oil compositions of the present invention.
Inventors:
Willem Van Damme
Application Number:
JP2006307085A
Publication Date:
March 05, 2014
Filing Date:
November 13, 2006
Export Citation:
Assignee:
Chevron Oronite Company LRC
International Classes:
C10M163/00; C10M129/10; C10M139/00; C10M159/24; C10N10/02; C10N10/04; C10N20/00; C10N30/00; C10N30/06; C10N40/25
Domestic Patent References:
| JP2004083746A | ||||
| JP2003327987A | ||||
| JP2004149802A | ||||
| JP2005146285A | ||||
| JP2004210918A | ||||
| JP2003336089A | ||||
| JP2003155495A | ||||
| JP11001694A |
Attorney, Agent or Firm:
Asamura patent office