EP 2535397 A4 20130904 - LUBRICANT ADDITIVE COMPOSITION
Title (en)
LUBRICANT ADDITIVE COMPOSITION
Title (de)
SCHMIERMITTELZUSATZZUSAMMENSETZUNGEN
Title (fr)
COMPOSITION D'ADDITIF LUBRIFIANT
Publication
Application
Priority
- JP 2010029340 A 20100212
- JP 2010067774 W 20101008
Abstract (en)
[origin: EP2535397A1] The present invention provides an additive composition for a lubricating oil that comprises a metal salt of a phosphorus-containing compound, is easy to produce, does not have adverse effects such as causing rubber seals to swell, and is excellent in storage stability. The additive composition comprises a metal salt of a phosphorus-containing compound represented by formula (1) in an amount of 10 to 90 percent by mass on the basis of the composition, contained in a hydrocarbon solvent selected from a mineral oil, a hydrocarbon synthetic oil and a mixture thereof, the hydrocarbon solvent having a 100°C kinematic viscosity of 0.5 to 4.5 mm 2 /s, a %C A of 3 or less, and a sulfur content of 0.05 percent by mass or less: wherein X 1 and X 2 are each independently oxygen or sulfur, R 1 , R 2 , R 3 , and R 4 are each independently a straight-chain alkyl group having 3 to 12 carbon atoms, the average of the carbon number is 5 or greater, and M is a divalent metal atom.
IPC 8 full level
C10M 137/06 (2006.01); C10M 137/10 (2006.01); C10M 143/00 (2006.01); C10M 159/04 (2006.01); C10M 169/00 (2006.01); C10N 10/04 (2006.01); C10N 20/00 (2006.01); C10N 20/02 (2006.01); C10N 30/00 (2006.01)
CPC (source: EP US)
C10M 137/06 (2013.01 - EP US); C10M 137/10 (2013.01 - EP US); C10M 169/04 (2013.01 - EP US); C10M 2203/1006 (2013.01 - EP US); C10M 2203/1025 (2013.01 - EP US); C10M 2205/0285 (2013.01 - EP US); C10M 2223/042 (2013.01 - EP US); C10M 2223/045 (2013.01 - EP US); C10N 2020/02 (2013.01 - EP US); C10N 2020/069 (2020.05 - EP US); C10N 2030/08 (2013.01 - EP US); C10N 2030/36 (2020.05 - EP US); C10N 2030/43 (2020.05 - EP US); C10N 2030/70 (2020.05 - EP US); C10N 2070/02 (2020.05 - EP US)
Citation (search report)
- [A] US 2010016195 A1 20100121 - SHIRAHAMA SHINICHI [JP], et al
- See references of WO 2011099195A1
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
DOCDB simple family (publication)
EP 2535397 A1 20121219; EP 2535397 A4 20130904; EP 2535397 B1 20150701; CN 102753665 A 20121024; CN 102753665 B 20141029; JP 2011162723 A 20110825; JP 5537179 B2 20140702; SG 183191 A1 20120927; US 2012302475 A1 20121129; WO 2011099195 A1 20110818
DOCDB simple family (application)
EP 10845787 A 20101008; CN 201080063638 A 20101008; JP 2010029340 A 20100212; JP 2010067774 W 20101008; SG 2012058137 A 20101008; US 201013576799 A 20101008