EP 1988146 A2 20081105 - Lubricating oil composition containing alkali metal borates with improved frictional properties
Title (en)
Lubricating oil composition containing alkali metal borates with improved frictional properties
Title (de)
Schmierölzusammensetzung mit Alkalimetall-Boraten mit verbesserten Reibungseigenschaften
Title (fr)
Composition d'huile lubrifiante contenant des borates de métal alcalin dotée de propriétés de friction améliorées
Publication
Application
Priority
US 74243507 A 20070430
Abstract (en)
A lubricating oil composition with improved frictional and wear performance, especially when the ratio of polysulfides is controlled, wherein said composition comprises a major amount of an oil of lubricating viscosity, at least one alkali metal borate; at least one dihydrocarbyl polysulfide component comprising a mixture of sulfides and having at least 30% dihydrocarbyl tetrasulfide or higher sulfides; at least one non-acidic phosphorus component comprised of a trihydrocarbyl phosphite; at least one dihydrocarbyl dithiophosphate; and a phosphorus component comprising a dihydrocarbyl phosphite component is disclosed.
IPC 8 full level
C10M 141/12 (2006.01)
CPC (source: EP US)
C10M 141/12 (2013.01 - EP US); C10M 2201/087 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2205/173 (2013.01 - EP US); C10M 2207/282 (2013.01 - EP US); C10M 2219/046 (2013.01 - EP US); C10M 2219/08 (2013.01 - EP US); C10M 2223/043 (2013.01 - EP US); C10M 2223/047 (2013.01 - EP US); C10M 2223/049 (2013.01 - EP US); C10N 2030/06 (2013.01 - EP US); C10N 2040/04 (2013.01 - EP US); C10N 2040/042 (2020.05 - EP US); C10N 2040/044 (2020.05 - EP US)
Citation (applicant)
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Designated contracting state (EPC)
DE FR GB NL
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 1988146 A2 20081105; EP 1988146 A3 20090617; CA 2627866 A1 20081030; JP 2008274276 A 20081113; SG 147382 A1 20081128; US 2008269085 A1 20081030
DOCDB simple family (application)
EP 08251076 A 20080326; CA 2627866 A 20080401; JP 2008114307 A 20080424; SG 2008027799 A 20080410; US 74243507 A 20070430