Global Patent Index - EP 0686690 A1

EP 0686690 A1 19951213 - Gear and transmission lubricant compositions of improved sludge-dispersibility, fluids comprising the same

Title (en)

Gear and transmission lubricant compositions of improved sludge-dispersibility, fluids comprising the same

Title (de)

Schmiermittelzusammensetzungen für Getriebe und Kraftübertragung mit verbesserten Dispergierungseigenschaften von Schlamm, diese enthaltende Flüssigkeiten

Title (fr)

Compositions lubrifiantes pour engrenages et transmissions aux propriétés dispersantes de boues, fluides comprenant celles-ci

Publication

EP 0686690 A1 19951213 (EN)

Application

EP 94304031 A 19940606

Priority

EP 94304031 A 19940606

Abstract (en)

A gear or transmission lubricant composition, comprising a major portion of mineral base oil, containing added thereto (A) a phosphorus-containing metal-free organic compound, such as a phosphate ester or amine salt thereof, and (B) an oil-soluble copolymer of (a) an alkyl (meth)acrylate and (b) a N,N-dialkylaminoalkyl (meth)acrylate, shows improved sludge dispersibility, and is useful as automatic transmission fluid.

IPC 1-7

C10M 161/00; C10M 167/00

IPC 8 full level

C10M 161/00 (2006.01); C10M 167/00 (2006.01)

CPC (source: EP)

C10M 137/02 (2013.01); C10M 137/04 (2013.01); C10M 137/08 (2013.01); C10M 137/10 (2013.01); C10M 137/12 (2013.01); C10M 149/04 (2013.01); C10M 149/10 (2013.01); C10M 159/24 (2013.01); C10M 161/00 (2013.01); C10M 167/00 (2013.01); C10M 2217/022 (2013.01); C10M 2217/023 (2013.01); C10M 2217/028 (2013.01); C10M 2217/06 (2013.01); C10M 2219/046 (2013.01); C10M 2223/02 (2013.01); C10M 2223/04 (2013.01); C10M 2223/041 (2013.01); C10M 2223/042 (2013.01); C10M 2223/043 (2013.01); C10M 2223/045 (2013.01); C10M 2223/049 (2013.01); C10M 2223/06 (2013.01); C10M 2223/061 (2013.01); C10M 2223/10 (2013.01); C10N 2040/02 (2013.01); C10N 2040/04 (2013.01); C10N 2040/042 (2020.05); C10N 2040/044 (2020.05); C10N 2040/046 (2020.05)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0686690 A1 19951213; EP 0686690 B1 20021113; DE 69431710 D1 20021219; DE 69431710 T2 20030724

DOCDB simple family (application)

EP 94304031 A 19940606; DE 69431710 T 19940606