EP 1161513 A1 20011212 - ENGINE OIL COMPOSITION WITH REDUCED DEPOSIT-FORMATION TENDENCY
Title (en)
ENGINE OIL COMPOSITION WITH REDUCED DEPOSIT-FORMATION TENDENCY
Title (de)
MOTORENÖLZUSAMMENSETZUNG MIT REDUZIERTER NEIGUNG ZUR BILDUNG VON ABLAGERUNGEN
Title (fr)
COMPOSITION D'HUILE DE MOTEUR A TENDANCE REDUITE A LA FORMATION DE DEPOTS
Publication
Application
Priority
- DE 19909401 A 19990304
- EP 0001534 W 20000224
Abstract (en)
[origin: DE19909401A1] The invention relates to engine oil compositions with reduced deposit-formation tendency which contain between 0.05 and 10 % by weight, in relation to the total weight of the engine oil composition, of an alkyl alkoxylate of formula (I), in which R<1>, R<2> and R<3> independently are hydrogen or a hydrocarbon rest with up to 40 carbon atoms; R<4> is hydrogen, a methyl or ethyl rest; L is a linking group; n is a whole number between 4 and 40; A is an alkoxy group with between 2 and 25 recurring units derived from ethylene oxide, propylene oxide and/or butylene oxide and comprises homopolymers and statistical copolymers of at least two of the above compounds; and z is 1 or 2. The nonpolar part of compound (I) of the formula (II) contains at least 9 carbon atoms. The invention also relates to the preparation of such engine oils and to the use of alkyl alkoxylates of formula (I) for the reduction of deposit formation.
IPC 1-7
IPC 8 full level
C10M 145/36 (2006.01); C10M 145/38 (2006.01)
CPC (source: EP KR US)
C10M 145/26 (2013.01 - KR); C10M 145/28 (2013.01 - EP US); C10M 145/30 (2013.01 - EP US); C10M 145/32 (2013.01 - EP US); C10M 145/34 (2013.01 - EP US); C10M 145/36 (2013.01 - EP US); C10M 145/38 (2013.01 - EP US); C10M 2209/103 (2013.01 - EP US); C10M 2209/104 (2013.01 - EP US); C10M 2209/105 (2013.01 - EP US); C10M 2209/106 (2013.01 - EP US); C10M 2209/107 (2013.01 - EP US); C10M 2209/108 (2013.01 - EP US); C10M 2209/109 (2013.01 - EP US); C10M 2215/042 (2013.01 - EP US); C10M 2215/22 (2013.01 - EP US); C10M 2215/221 (2013.01 - EP US); C10M 2215/225 (2013.01 - EP US); C10M 2215/226 (2013.01 - EP US); C10M 2215/30 (2013.01 - EP US); C10M 2221/043 (2013.01 - EP US); C10N 2040/25 (2013.01 - EP US); C10N 2040/251 (2020.05 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2040/253 (2020.05 - EP US); C10N 2040/255 (2020.05 - EP US); C10N 2040/28 (2013.01 - EP US); C10N 2070/02 (2020.05 - EP US)
Citation (search report)
See references of WO 0052117A1
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)
DE 19909401 A1 20000907; AU 3806400 A 20000921; BR 0008634 A 20011226; CA 2372458 A1 20000908; CA 2372458 C 20090728; CN 1252232 C 20060419; CN 1347444 A 20020501; EP 1161513 A1 20011212; JP 2002538266 A 20021112; KR 100454323 B1 20041026; KR 20020010120 A 20020202; US 6458750 B1 20021001; WO 0052117 A1 20000908
DOCDB simple family (application)
DE 19909401 A 19990304; AU 3806400 A 20000224; BR 0008634 A 20000224; CA 2372458 A 20000224; CN 00802531 A 20000224; EP 0001534 W 20000224; EP 00916867 A 20000224; JP 2000602730 A 20000224; KR 20017011209 A 20010903; US 86830901 A 20010618