EP 1280597 B1 20041110 - METHOD FOR PREPARING A MONODISPERSED DOUBLE EMULSION
Title (en)
METHOD FOR PREPARING A MONODISPERSED DOUBLE EMULSION
Title (de)
VERFAHREN ZUM HERSTELLEN EINER MONODISPERSE DOPPELEMULSION
Title (fr)
PROCEDE DE PREPARATION D'UNE EMULSION DOUBLE MONODISPERSE
Publication
Application
Priority
- FR 0101397 W 20010509
- FR 0005880 A 20000509
Abstract (en)
[origin: WO0185319A1] The invention concerns a method for preparing a monodispersed double water/oil/water emulsion, characterised in that it consists in: a) subjecting a polydispersed oil-in-water emulsion Ei comprising 55 to 99 wt. % of an aqueous phase, to a controlled shearing so that a common maximum shearing is applied to the entire emulsion, so as to obtain the corresponding monodispersed invert emulsion; b) adding to said emulsion, without phase inversion, the necessary amount of diluting oil phase so that the aqueous phase of the resulting emulsion represents at least 50 wt. % of the emulsion total weight; and c) introducing the resulting emulsion into a high pressure homogenizer, together with a continuous aqueous phase, the respective amounts of said emulsion and said continuous aqueous phase being such that the resulting double emulsion comprises up to 50 wt. % of invert emulsion droplets relative to the emulsion total weight, said continuous aqueous phase comprising a hydrophilic surfactant concentration not more that 0.02 times the critical micellar concentration.
IPC 1-7
IPC 8 full level
CPC (source: EP US)
B01F 23/4105 (2022.01 - EP US); B01F 23/4111 (2022.01 - EP US); B01F 23/43 (2022.01 - EP US); B01F 29/81 (2022.01 - EP US)
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 0185319 A1 20011115; WO 0185319 A9 20081002; AT E281881 T1 20041115; AU 2001258517 B2 20050908; AU 5851701 A 20011120; CA 2408419 A1 20011115; CA 2408419 C 20090721; DE 60107073 D1 20041216; DE 60107073 T2 20051124; EP 1280597 A1 20030205; EP 1280597 B1 20041110; ES 2227188 T3 20050401; FR 2808703 A1 20011116; FR 2808703 B1 20020802; JP 2003532523 A 20031105; JP 4643109 B2 20110302; US 2004116541 A1 20040617
DOCDB simple family (application)
FR 0101397 W 20010509; AT 01931824 T 20010509; AU 2001258517 A 20010509; AU 5851701 A 20010509; CA 2408419 A 20010509; DE 60107073 T 20010509; EP 01931824 A 20010509; ES 01931824 T 20010509; FR 0005880 A 20000509; JP 2001581969 A 20010509; US 27532203 A 20030813