EP 2203419 A1 20100707 - NOVEL SURFACTANTS WITH A POLYETHERSULFONATE STRUCTURE METHOD FOR PRODUCTION THEREOF AND USE THEREOF FOR TERTIARY CRUDE OIL PRODUCTION
Title (en)
NOVEL SURFACTANTS WITH A POLYETHERSULFONATE STRUCTURE METHOD FOR PRODUCTION THEREOF AND USE THEREOF FOR TERTIARY CRUDE OIL PRODUCTION
Title (de)
NEUARTIGE TENSIDE MIT POLYETHERSULFONAT-STRUKTUR, VERFAHREN ZU DEREN HERSTELLUNG UND DEREN VERWENDUNG ZUR TERTIÄREN ERDÖLFÖRDERUNG
Title (fr)
NOUVEAUX TENSIOACTIFS À STRUCTURE POLYÉTHERSULFONATE, PROCÉDÉ DE PRODUCTION ET UTILISATION DESDITS TENSIOACTIFS POUR LA RÉCUPÉRATION TERTIAIRE DU PÉTROLE
Publication
Application
Priority
- EP 2008063834 W 20081015
- EP 07118547 A 20071016
- EP 08839255 A 20081015
Abstract (en)
[origin: WO2009050179A1] Surfactants with a polyethersulfonate structure having a propanoylsulphonic acid as head group, method for production of such surfactants and use thereof for tertiary crude oil production.
IPC 8 full level
C07C 309/44 (2006.01); C09K 8/584 (2006.01)
CPC (source: EP US)
C07C 309/10 (2013.01 - EP US); C09K 8/584 (2013.01 - EP US); C09K 8/602 (2013.01 - EP US); C09K 23/00 (2022.01 - EP US); C09K 23/04 (2022.01 - EP US)
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
WO 2009050179 A1 20090423; EP 2203419 A1 20100707; JP 2011502184 A 20110120; US 2010213409 A1 20100826; US 8465668 B2 20130618
DOCDB simple family (application)
EP 2008063834 W 20081015; EP 08839255 A 20081015; JP 2010529358 A 20081015; US 73823608 A 20081015