EP 0613938 A1 19940907 - Hydrocarbon fuel compositions incorporating nitrogen-containing dispersants.
Title (en)
Hydrocarbon fuel compositions incorporating nitrogen-containing dispersants.
Title (de)
Stickstoff enthaltende Dispergiermittel umfassende Kohlenwasserstoffkraftstoffszusammensetzungen.
Title (fr)
Compositions de combustible hydrocarbore incorporant des dispersants contenant de l'azote.
Publication
Application
Priority
GB 9304350 A 19930303
Abstract (en)
A hydrocarbon fuel composition comprising a hydrocarbon fuel and an amount sufficient to provide dispersancy of a hydrocarbyl-substituted succinic diamide, wherein the hydrocarbyl substituent, which is advantageously a polyisobutene, is of a size sufficient to render the diamide soluble in the fuel, typically from 35 to 300 carbon atoms, and the diamide is obtained by reacting at elevated temperature a secondary amine, for example an N-alkyl piperazine, with either a hydrocarbyl-substituted succinic acid or an anhydride, ester or monoamide derivative thereof.
IPC 1-7
IPC 8 full level
C10L 1/224 (2006.01); C10L 1/14 (2006.01); C10L 1/2383 (2006.01); C10L 1/2387 (2006.01); C10L 10/00 (2006.01); C10L 1/18 (2006.01); C10L 1/22 (2006.01); C10L 1/30 (2006.01)
CPC (source: EP)
C10L 1/143 (2013.01); C10L 1/2383 (2013.01); C10L 1/2387 (2013.01); C10L 10/18 (2013.01); C10L 1/1832 (2013.01); C10L 1/1973 (2013.01); C10L 1/231 (2013.01); C10L 1/305 (2013.01); C10L 1/306 (2013.01)
Citation (search report)
- [Y] US 4234435 A 19801118 - MEINHARDT NORMAN A, et al
- [Y] EP 0062161 A1 19821013 - UNION CARBIDE CORP [US]
- [Y] US 3324033 A 19670606 - KNAPP GORDON G
- [DY] EP 0191967 A2 19860827 - MOBIL OIL CORP [US]
- [Y] GB 1471601 A 19770427 - TOA NENRYO KOGYO KK
- [A] GB 1378708 A 19741227 - BRITISH PETROLEUM CO
- [A] EP 0208560 A2 19870114 - EXXON CHEMICAL PATENTS INC [US]
- [A] FR 2197062 A1 19740322 - EXXON RESEARCH ENGINEERING CO [US]
- [Y] DATABASE WPI Week 7637, Derwent World Patents Index; AN 76-69240X
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 0613938 A1 19940907; EP 0613938 B1 19980722; DE 69411784 D1 19980827; DE 69411784 T2 19981203; GB 9304350 D0 19930421; JP H06299170 A 19941025
DOCDB simple family (application)
EP 94301303 A 19940224; DE 69411784 T 19940224; GB 9304350 A 19930303; JP 3158394 A 19940301