EP 1359209 A3 20041103 - Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil
Title (en)
Compounds containing amide and carboxyl groups as asphaltene dispersants in crude oil
Title (de)
Amid- und Carboxylgruppen enthaltende Verbindungen als Asphaltendispergatoren in Rohöl
Title (fr)
Composés contenant des groupes amidiques et carboxyliques comme dispersants d'asphaltènes
Publication
Application
Priority
US 37487402 P 20020423
Abstract (en)
[origin: EP1359209A2] A composition comprising: (a) 0.001% to 20% of at least one compound having: (i) at least one carboxyl group; (ii) at least one amide group; and (iii) at least fifteen carbon atoms; and (b) crude oil; provided that the compound is not represented by formula (I) <CHEM> wherein R<1> and R<2> independently are hydrogen or C1-C22 alkyl and n is one or two.
IPC 1-7
IPC 8 full level
C10L 1/224 (2006.01); C10L 1/16 (2006.01); C10L 1/22 (2006.01)
CPC (source: EP)
C10L 1/224 (2013.01); C10L 1/1616 (2013.01)
Citation (search report)
- [X] WO 9101970 A2 19910221 - STEPAN CO [US], et al
- [X] US 3224957 A 19651221 - KENT EUGENE A
- [X] WO 9314178 A1 19930722 - EXXON CHEMICAL PATENTS INC [US]
- [X] EP 0662504 A1 19950712 - NALCO CHEMICAL CO [US]
- [X] GB 1117643 A 19680619 - ROHM & HAAS
- [A] US 3095286 A 19630625 - ANDRESS JR HARRY J, et al
- [A] US 4622047 A 19861111 - BERNASCONI CHRISTIAN [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 PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1359209 A2 20031105; EP 1359209 A3 20041103; CA 2424904 A1 20031023; MX PA03003367 A 20050816; NO 20031603 D0 20030409; NO 20031603 L 20031024
DOCDB simple family (application)
EP 03252269 A 20030410; CA 2424904 A 20030409; MX PA03003367 A 20030415; NO 20031603 A 20030409