EP 1479752 A3 20091028 - Low emission diesel lubricant with improved corrosion protection
Title (en)
Low emission diesel lubricant with improved corrosion protection
Title (de)
Emissionsarmes Schmiermittel mit verbessertem Korrosionsschutz
Title (fr)
Lubrifiant à faible émission avec une protection améliorée contre la corrosion
Publication
Application
Priority
US 44433303 A 20030522
Abstract (en)
[origin: EP1479752A2] The present invention provides engine lubricants for low emission diesel engines featuring low levels of ash, sulfur and phosphorus. Specifically, this invention provides a low emission diesel lubricant comprising from about 0 wt. % to about 1.2 wt. % ash; from about 0.1 wt. % to about 0.5 wt. % sulfur; and from about 0.02 wt. % to about 0.1 wt. % phosphorus. Said lubricant may also comprise a novel unsulfurized, carboxylate-containing additive for lubricating oils, comprising a mixture of alkaline earth metal salts (hydrocarbyl phenate/hydrocarbyl salicylate) and a reduced amount of unreacted hydrocarbyl phenols, in which said hydrocarbyl salicylate is primarily single-aromatic-ring hydrocarbyl salicylate. The invention also provides a method for producing said additive and said low emission diesel lubrificant (LEDL).
IPC 8 full level
C10M 163/00 (2006.01); C10M 169/04 (2006.01); C10M 101/02 (2006.01); C10M 129/10 (2006.01); C10M 129/52 (2006.01); C10M 133/12 (2006.01); C10M 133/56 (2006.01); C10M 135/18 (2006.01); C10M 137/10 (2006.01); C10M 139/00 (2006.01); C10M 149/02 (2006.01); C10M 159/22 (2006.01); C10M 159/24 (2006.01); C10M 167/00 (2006.01); C10M 177/00 (2006.01); C10N 10/04 (2006.01); C10N 10/12 (2006.01); C10N 30/04 (2006.01); C10N 30/12 (2006.01); C10N 40/25 (2006.01); C10N 60/14 (2006.01); C10N 70/00 (2006.01)
CPC (source: EP US)
C10M 163/00 (2013.01 - EP US); C10M 2207/142 (2013.01 - EP US); C10M 2207/144 (2013.01 - EP US); C10M 2215/064 (2013.01 - EP US); C10M 2215/28 (2013.01 - EP US); C10N 2030/04 (2013.01 - EP US); C10N 2030/12 (2013.01 - EP US); C10N 2030/42 (2020.05 - EP US); C10N 2030/43 (2020.05 - EP US); C10N 2030/45 (2020.05 - EP US); C10N 2030/50 (2020.05 - EP US); C10N 2040/252 (2020.05 - EP US); C10N 2060/14 (2013.01 - EP US)
Citation (search report)
- [X] EP 1167497 A2 20020102 - CHEVRON ORONITE JAPAN LTD [JP]
- [A] CA 2385969 A1 20021111 - INFINEUM INT LTD [GB]
- [A] EP 0675191 A2 19951004 - COSMO SOGO KENKYUSHO KK [JP], et al
- [A] EP 0370555 A2 19900530 - SHELL INT RESEARCH [NL]
- [DA] US 6162770 A 20001219 - LE COENT JEAN-LOUIS MARIE [FR], et al
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
Designated extension state (EPC)
AL HR LT LV MK
DOCDB simple family (publication)
EP 1479752 A2 20041124; EP 1479752 A3 20091028; EP 1479752 B1 20110727; CA 2467843 A1 20041122; CA 2467843 C 20130806; JP 2004346326 A 20041209; JP 4921697 B2 20120425; SG 116548 A1 20051128; US 2004235682 A1 20041125
DOCDB simple family (application)
EP 04252592 A 20040504; CA 2467843 A 20040519; JP 2004152392 A 20040521; SG 200402961 A 20040522; US 44433303 A 20030522