Title:
潤滑油組成物
Document Type and Number:
Japanese Patent JP4673465
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To obtain a lubricating oil composition for an automatic transmission especially for a stepless transmission, simultaneously satisfying a high frictional coefficient between metals required for a belt type CVT oil and a shudder- preventing property for a slip-controlling mechanism. SOLUTION: This lubricating oil composition for the automatic transmission, especially for the stepless transmission is obtained by blending (A) an organic acid metal salt, (B) an abrasion-preventing agent and (C) a boron-containing succinimide with a lubricating base oil consisting of a mineral oil and/or synthetic oil, and is characterized in that the above organic acid metal acid (A) is a salicylate, carboxylate, sulfonate, phenate or phosphonate of Ca, Mg or Ba having at least one chain hydrocarbon group, and an alkyl group linearity in the above chain hydrocarbon group obtained by a carbon nuclear magnetic resonance (13C-NMR) measurement is 25-60%.
Inventors:
Takehisa Sato
Takanori Kugimiya
Hiroyuki Arai
Takanori Kugimiya
Hiroyuki Arai
Application Number:
JP2000145134A
Publication Date:
April 20, 2011
Filing Date:
May 17, 2000
Export Citation:
Assignee:
TonenGeneral Sekiyu KK
TOYOTA JIDOSHA KABUSHIKI KAISHA
TOYOTA JIDOSHA KABUSHIKI KAISHA
International Classes:
C10M169/04; C10M125/24; C10M137/02; C10M137/04; C10M137/08; C10M137/10; C10M137/12; C10M137/14; C10M139/00; C10M159/20; C10M159/22; C10M159/24; C10N10/04; C10N20/00; C10N30/00; C10N40/04
Domestic Patent References:
| JP2000109872A | ||||
| JP9263782A | ||||
| JP2175794A | ||||
| JP11293272A | ||||
| JP1161165A | ||||
| JP1143687A | ||||
| JP1161164A |
Attorney, Agent or Firm:
Kenji Kawabi