Title:
潤滑油添加剤組成物及び潤滑油組成物
Document Type and Number:
Japanese Patent JP3980146
Kind Code:
B2
Abstract:
The present invention provides a lubricating oil additive composition containing a salt of an ashless dispersant and an aromatic carboxylic acid having from about 1 to 4 carboxylic groups when employed as lubricant additives provides a high friction coefficient at elevated temperatures. The lubricating oil composition containing the present additive composition is especially useful in hydraulic oils and automatic transmission oils.
Inventors:
Ayako Ozaki
Umehara Katsuumi
Hayashi Shigemi
Umehara Katsuumi
Hayashi Shigemi
Application Number:
JP1810998A
Publication Date:
September 26, 2007
Filing Date:
January 13, 1998
Export Citation:
Assignee:
Chevron Japan Co., Ltd.
International Classes:
C10M161/00; C10M169/04; C10M133/56; C10M141/06; C10M129/52; C10M133/16; C10M149/10; C10N30/06; C10N40/04; C10N40/08; C10N40/25
Domestic Patent References:
| JP51130409A | ||||
| JP41013032B1 | ||||
| JP37015778B1 | ||||
| JP9324188A |
Foreign References:
| US3374174 |
Attorney, Agent or Firm:
Yanagawa Yasuo