Title:
濾過性が向上した作動油
Document Type and Number:
Japanese Patent JP4089836
Kind Code:
B2
Abstract:
A hydraulic oil, a predominant amount of an oil having a viscosity suitable for lubrication, and from 0.03% to 0.06% of an agent improving filterability, corresponding to the formula R-Z. Z represents an ester of succinic acid comprising the reaction product of a succinic anhydride and an aliphatic polyhydric alcohol; or a succinimide comprising the reaction product of a succinic anhydride and a polyamine, the said reaction product being treated with an after-treatment agent. R represents a polyolefin having a molecular weight (Mn) of 500 to 2500 and an Mw/Mn ratio of 1 to 5.
Inventors:
Clement, Olivier
Le Source, Christoph
Batarie, Dominique
Cousin, Jack
Le Source, Christoph
Batarie, Dominique
Cousin, Jack
Application Number:
JP54354798A
Publication Date:
May 28, 2008
Filing Date:
April 02, 1998
Export Citation:
Assignee:
Chevron Chemical S.A.
International Classes:
C10M129/95; C10M145/02; C10M133/56; C10M149/02; C10N20/04; C10N30/00; C10N40/08
Domestic Patent References:
| JP61258897A | ||||
| JP7150166A | ||||
| JP2101070A | ||||
| JP5165104A | ||||
| JP8311478A |
Foreign References:
| WO1996007720A1 |
Attorney, Agent or Firm:
Yanagawa Yasuo