EP 0765372 B1 20010321 - LOW VOLATILITY LURICATING COMPOSITIONS
Title (en)
LOW VOLATILITY LURICATING COMPOSITIONS
Title (de)
NIEDRIG FLÜCHTIGE SCHMIERMITTELZUSAMMENSETZUNGEN
Title (fr)
COMPOSITIONS LUBRIFIANTES PEU VOLATILES
Publication
Application
Priority
- EP 9502272 W 19950612
- GB 9412065 A 19940616
- GB 9412066 A 19940616
Abstract (en)
[origin: WO9534618A1] This invention relates to low volatility 5W20, 5W30, 10W40, 10W50, 15W40 or 15W50 multigrade oils for crankcase lubrication of gasoline and diesel engines, the oils comprising a) basestock having an average basestock neutral number of not less than 105 for a 5W multigrade, not less than 145 for a 10W multigrade and not less than 200 for a 15W multigrade; b) a detergent inhibitor package including an ashless dispersant comprising an oil soluble polymeric hydrocarbon backbone having functional groups in which the hydrocarbon backbone is derived from an ethylene alpha-olefin (EAO) copolymer or alpha-olefin homo- or copolymer having an Mn of from 500 to 7000, and preferably having >30 % of terminal vinylidene unsaturation, and c) a viscosity modifier. These multigrade crankcase oils provide better volatility with reduced use or even without the need for expensive light neutral basestocks or non-conventional lubricant basestocks, while at the same time providing adequate control of sludge and varnish.
IPC 1-7
IPC 8 full level
C10M 161/00 (2006.01); C10M 169/04 (2006.01)
CPC (source: EP US)
C10M 161/00 (2013.01 - EP); C10M 169/048 (2013.01 - EP US); C10M 2201/087 (2013.01 - EP); C10M 2203/10 (2013.01 - EP); C10M 2203/102 (2013.01 - EP); C10M 2205/00 (2013.01 - EP); C10M 2205/02 (2013.01 - EP); C10M 2205/06 (2013.01 - EP); C10M 2207/027 (2013.01 - EP); C10M 2207/028 (2013.01 - EP); C10M 2207/144 (2013.01 - EP); C10M 2207/146 (2013.01 - EP); C10M 2207/26 (2013.01 - EP); C10M 2207/262 (2013.01 - EP); C10M 2207/289 (2013.01 - EP); C10M 2207/34 (2013.01 - EP); C10M 2209/084 (2013.01 - EP); C10M 2209/086 (2013.01 - EP); C10M 2209/104 (2013.01 - EP); C10M 2209/108 (2013.01 - EP); C10M 2215/04 (2013.01 - EP); C10M 2215/042 (2013.01 - EP); C10M 2215/064 (2013.01 - EP); C10M 2215/08 (2013.01 - EP); C10M 2215/082 (2013.01 - EP); C10M 2215/086 (2013.01 - EP); C10M 2215/22 (2013.01 - EP); C10M 2215/221 (2013.01 - EP); C10M 2215/225 (2013.01 - EP); C10M 2215/226 (2013.01 - EP); C10M 2215/24 (2013.01 - EP); C10M 2215/26 (2013.01 - EP); C10M 2215/28 (2013.01 - EP); C10M 2215/30 (2013.01 - EP); C10M 2217/046 (2013.01 - EP); C10M 2217/06 (2013.01 - EP); C10M 2219/044 (2013.01 - EP); C10M 2219/046 (2013.01 - EP); C10M 2219/082 (2013.01 - EP); C10M 2219/087 (2013.01 - EP); C10M 2219/088 (2013.01 - EP); C10M 2219/089 (2013.01 - EP); C10M 2219/10 (2013.01 - EP); C10M 2219/102 (2013.01 - EP); C10M 2219/104 (2013.01 - EP); C10M 2219/106 (2013.01 - EP); C10M 2219/108 (2013.01 - EP); C10M 2223/045 (2013.01 - EP); C10M 2223/065 (2013.01 - EP); C10M 2227/061 (2013.01 - EP); C10M 2229/041 (2013.01 - EP); C10N 2010/02 (2013.01 - EP); C10N 2010/04 (2013.01 - EP); C10N 2010/06 (2013.01 - EP); C10N 2010/12 (2013.01 - EP); C10N 2010/14 (2013.01 - EP); C10N 2010/16 (2013.01 - EP US); C10N 2020/01 (2020.05 - EP); C10N 2040/25 (2013.01 - EP); C10N 2040/251 (2020.05 - EP); C10N 2040/255 (2020.05 - EP); C10N 2040/28 (2013.01 - EP)
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
WO 9534618 A1 19951221; AU 2881295 A 19960105; AU 689914 B2 19980409; CA 2193120 A1 19951221; DE 69520432 D1 20010426; DE 69520432 T2 20010705; EP 0765372 A1 19970402; EP 0765372 B1 20010321; ES 2155522 T3 20010516
DOCDB simple family (application)
EP 9502272 W 19950612; AU 2881295 A 19950612; CA 2193120 A 19950612; DE 69520432 T 19950612; EP 95924212 A 19950612; ES 95924212 T 19950612