EP 3683290 A1 20200722 - LUBRICANT CONTAINING THIADIAZOLE DERIVATIVES

Title (en)

LUBRICANT CONTAINING THIADIAZOLE DERIVATIVES

Title (de)

SCHMIERMITTEL MIT THIADIAZOLDERIVATEN

Title (fr)

LUBRIFIANT CONTENANT DES DÉRIVÉS DE THIADIAZOLE

Publication

EP 3683290 A1 20200722 (EN)

Application

EP 20151851 A 20200114

Priority

US 201916249400 A 20190116
US 201962793152 P 20190116

Abstract (en)

The present invention describes a lubricating composition comprisinga) a major part of a base oil of lubricating viscosity wherein the base oil is selected from API Group I, II, III, IV, V, or mixtures thereof,b) a total of 0.001 to 0.536 wt.%, based on the total lubricating composition, of one or more monohydrocarbyl-substituted dimercaptothiadiazole derivative(s) according to Formula (I), or a tautomer or salt thereof, belowwherein R is methyl or C<sub>2</sub>to C<sub>4</sub>alkyl,wherein the total lubricating composition has a sulfur content of up to 2,500 ppm (wt.),c) less than 0.1 wt% phosphite.The invention further describes the use of the lubricating composition according to the invention for lubricating a driveline, a transmission, in particular a manual or automated transmission, a gear, an automated gear, or an axle, and for enhanced FZG test performance. The invention further relates to a method for preparing the lubricating composition of the invention.

IPC 8 full level

C10M 135/36 (2006.01); C10M 169/04 (2006.01); C10N 30/00 (2006.01); C10N 30/06 (2006.01); C10N 40/04 (2006.01)

CPC (source: EP)

C10M 135/36 (2013.01); C10M 169/04 (2013.01); C10M 2205/0285 (2013.01); C10M 2215/28 (2013.01); C10M 2219/106 (2013.01); C10N 2030/06 (2013.01); C10N 2030/42 (2020.05); C10N 2030/43 (2020.05); C10N 2040/04 (2013.01)

Citation (applicant)

US 2016168505 A1 20160616 - BOUVIER GOULVEN [FR], et al
US 7897696 B2 20110301 - HUANG CHENTE [US], et al
US 4234435 A 19801118 - MEINHARDT NORMAN A, et al
US 4152499 A 19790501 - BOERZEL PAUL [DE], et al
US 5739355 A 19980414 - GATEAU PATRICK [FR], et al
US 3634515 A 19720111 - PIASEK EDMUND J, et al
US 7645726 B2 20100112 - LOPER JOHN T [US]
US 7214649 B2 20070508 - LOPER JOHN T [US], et al
US 8048831 B2 20111101 - LOPER JOHN T [US]
US 5334321 A 19940802 - HARRISON JAMES J [US], et al
US 6723685 B2 20040420 - HARTLEY ROLFE J [US], et al
US 6300291 B1 20011009 - HARTLEY ROLFE J [US], et al
US 7732390 B2 20100608 - KADKHODAYAN ABBAS [US], et al
US 2012101017 A1 20120426 - DUGGAL AKHILESH [US]
US 4029588 A 19770614 - KOCH FREDERICK WILLIAM
"FUELS AND LUBRICANTS HANDBOOK, TECHNOLOGY, PROPERTIES, PERFORMANCE, AND TESTING", 2003, ASTM INTERNATIONAL

Citation (search report)

[X] US 5656577 A 19970812 - KATO TOMOHIRO [JP], et al
[X] US 5585338 A 19961217 - BELTZER MORTON [US]
[A] US 5801130 A 19980901 - FRANCISCO MANUAL A [US], et al
[A] US 2010130390 A1 20100527 - TIPTON CRAIG D [US], et al
[A] US 2010016189 A1 20100121 - BAKER MARK R [US], et al

Designated contracting state (EPC)

AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

Designated extension state (EPC)

BA ME

DOCDB simple family (publication)

EP 3683290 A1 20200722; EP 3683290 B1 20230906; EP 3683290 C0 20230906

DOCDB simple family (application)

EP 20151851 A 20200114