Title (en)

Lubricating oil composition

Title (de)

Schmiermittelzusammensetzung

Title (fr)

Composition d'huile lubrifiante

Publication

EP 0926224 A3 20000628 (EN)

Application

EP 98124661 A 19981224

Priority

JP 36720497 A 19971225

Abstract (en)

[origin: EP0926224A2] A lubricating oil composition for an automatic or continuously variable transmission, which comprises a lubricating base stock and 0.1 to 10 wt.%, based on the whole weight of the composition, of a compound composed of at least one of alkyl- or alkenyl-substituted cyclic dicarboxylic anhydrides. The composition can achieve a sufficient friction coefficient in a high sliding speed range in the automatic or continuously variable transmission.

IPC 1-7

C10M 129/72; C10M 129/93; C10M 129/94

IPC 8 full level

C10M 129/72 (2006.01); C10M 129/93 (2006.01); C10M 129/94 (2006.01); C10N 30/00 (2006.01); C10N 40/04 (2006.01)

CPC (source: EP)

C10M 129/72 (2013.01); C10M 129/93 (2013.01); C10M 129/94 (2013.01); C10M 2207/123 (2013.01); C10M 2207/129 (2013.01); C10M 2207/14 (2013.01); C10M 2207/142 (2013.01); C10M 2207/22 (2013.01); C10N 2040/04 (2013.01); C10N 2040/042 (2020.05); C10N 2040/044 (2020.05); C10N 2040/046 (2020.05); C10N 2040/08 (2013.01)

Citation (search report)

• [X] WO 9714772 A1 19970424 - EXXON CHEMICAL PATENTS INC [US]
• [X] US 3912764 A 19751014 - PALMER JR JOHN F
• [A] EP 0116460 A2 19840822 - EXXON RESEARCH ENGINEERING CO [US]
• [XY] US 4496746 A 19850129 - POWELL JUSTIN C [US]
• [Y] EP 0245964 A2 19871119 - TONEN SEKIYUKAGAKU KK [JP]
• [X] EP 0808852 A2 19971126 - LUBRIZOL CORP [US]
• [A] US 3833618 A 19740903 - PIASEK E, et al

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0926224 A2 19990630; EP 0926224 A3 20000628; JP H11181460 A 19990706

DOCDB simple family (application)

EP 98124661 A 19981224; JP 36720497 A 19971225