EP 0072645 A2 19830223 - Improved succinimide lubricating oil dispersant.
Title (en)
Improved succinimide lubricating oil dispersant.
Title (de)
Verbessertes Bernsteinsäureimide-Dispergiermittel für Schmieröl.
Title (fr)
Succinimide dispersant amélioré pour huile lubrifiante.
Publication
Application
Priority
US 29314681 A 19810817
Abstract (en)
There is disclosed an improved lubricating oil dispersant suitable for both gasoline engine and diesel engine lubricating oil, the dispersant being prepared in a sequential process whereby a polyolefin succinic anhydride is reacted first with an alkylene polyamide and subsequently with maleic anhydride, succinic anhydride, or a C1-C18 alkenyl or alkyl succinic anhydride to provide a diimide dispersant having a final mole ratio of 2.3 to 3.0 moles of anhydride per mole of polyamine.
IPC 1-7
IPC 8 full level
C10M 133/56 (2006.01); C10M 159/12 (2006.01); C10N 30/04 (2006.01); C10N 40/25 (2006.01); C10N 70/00 (2006.01); F02B 1/04 (2006.01); F02B 3/06 (2006.01)
CPC (source: EP)
C10M 133/56 (2013.01); C10M 2203/06 (2013.01); C10M 2205/00 (2013.01); C10M 2205/026 (2013.01); C10M 2205/06 (2013.01); C10M 2207/026 (2013.01); C10M 2207/027 (2013.01); C10M 2207/028 (2013.01); C10M 2207/144 (2013.01); C10M 2207/146 (2013.01); C10M 2207/16 (2013.01); C10M 2207/262 (2013.01); C10M 2209/084 (2013.01); C10M 2209/086 (2013.01); C10M 2215/04 (2013.01); C10M 2215/26 (2013.01); C10M 2217/023 (2013.01); C10M 2217/024 (2013.01); C10M 2217/028 (2013.01); C10M 2217/046 (2013.01); C10M 2217/06 (2013.01); C10M 2219/044 (2013.01); C10M 2219/046 (2013.01); C10M 2219/087 (2013.01); C10M 2219/088 (2013.01); C10M 2219/089 (2013.01); C10M 2219/108 (2013.01); C10M 2223/045 (2013.01); C10M 2225/041 (2013.01); C10N 2010/04 (2013.01); C10N 2070/02 (2020.05); F02B 1/04 (2013.01); F02B 3/06 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0072645 A2 19830223; EP 0072645 A3 19840905; EP 0072645 B1 19870107; BR 8204774 A 19830802; CA 1190216 A 19850709; DE 3274976 D1 19870212; JP H0328477 B2 19910419; JP S5838792 A 19830307
DOCDB simple family (application)
EP 82304066 A 19820802; BR 8204774 A 19820816; CA 409301 A 19820812; DE 3274976 T 19820802; JP 14118582 A 19820816