Title:
増強された摩擦性能を有するギヤオイル潤滑剤
Document Type and Number:
Japanese Patent JP4101310
Kind Code:
B2
Abstract:
The frictional properties of gear oils are improved by including at least one overbased alkali or alkaline earth metal carboxylate, sulphonate or sulphurized phenate having a TBN of at least 200 in a gear oil which comprises: oil of lubricating viscosity at least 80% by volume of which is mineral oil, synthetic ester oil or a mixture thereof; Mannich base ashless dispersant; metal-free, sulphur-containing antiwear and/or extreme pressure agent; and metal-free, phosphorus-containing and nitrogen-containing antiwear and/or extreme pressure agent. The resultant gear oils exhibit excellent performance when used in synchromesh-based transmissions.
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Inventors:
Graem Macrobert Wallace
Giulia Caroline Port
Giulia Caroline Port
Application Number:
JP6645394A
Publication Date:
June 18, 2008
Filing Date:
March 11, 1994
Export Citation:
Assignee:
Ethyl Petroleum Additives Limited
International Classes:
C10M163/00; C10M169/04; C10M167/00; C10M101/02; C10M105/32; C10M135/00; C10M137/00; C10M159/16; C10M159/20; C10N10/02; C10N10/04; C10N30/06; C10N40/04
Domestic Patent References:
| JP1502674A | ||||
| JP4505033A | ||||
| JP1501801A | ||||
| JP3503906A | ||||
| JP3504981A |
Foreign References:
| CA2076921A1 |
Attorney, Agent or Firm:
Heikichi Odashima