Title:
単分散二重エマルションの製造方法
Document Type and Number:
Japanese Patent JP4643109
Kind Code:
B2
Abstract:
A method for preparing a monodispersed double water/oil/water emulsion, comprises: a) subjecting a polydispered oil-in-water emulsion Ei comprising 55 to 99 wt. % of an aqueous phase, to a controlled shearing to obtain the corresponding monodispersed invert emulsion; b) adding to the 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 the emulsion and the 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, the continuous aqueous phase comprising a hydrophilic surfactant concentration not more that 0.02 times the critical micellar concentration.
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Inventors:
Real Cardulon, Fernando
Golia, Philip
Bivet, jerome
Golia, Philip
Bivet, jerome
Application Number:
JP2001581969A
Publication Date:
March 02, 2011
Filing Date:
May 09, 2001
Export Citation:
Assignee:
Ecole Polytechnique/Dgar
International Classes:
B01F3/08; B01F9/10; B01J13/00
Domestic Patent References:
| JP2000503685A | ||||
| JP11509473A | ||||
| JP10203962A | ||||
| JP59080326A | ||||
| JP10310416A | ||||
| JP10128096A | ||||
| JP7509177A | ||||
| JP5220382A | ||||
| JP1043342A |
Attorney, Agent or Firm:
Takashi Ishida
Jun Tsuruta
Kazuo Yoshii
Masaya Nishiyama
Higuchi Souji
Jun Tsuruta
Kazuo Yoshii
Masaya Nishiyama
Higuchi Souji