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Process and apparatus for producing emulsion and microcapsules achieved

Foreign code F110005692
File No. Y0144US4
Posted date Sep 12, 2011
Country United States of America
Application number 28725305
Gazette No. 20060077755
Gazette No. 7717615
Date of filing Nov 28, 2005
Gazette Date Apr 13, 2006
Gazette Date May 18, 2010
International application number JP2002001186
International publication number WO2002068104
Date of international filing Feb 13, 2002
Date of international publication Sep 6, 2002
Priority data
  • P2001-048097 (Feb 23, 2001) JP
  • P2001-238624 (Aug 7, 2001) JP
  • 2002WO-JP01186 (Feb 13, 2002) WO
  • 2003US-10468015 (Aug 22, 2003) US
Title Process and apparatus for producing emulsion and microcapsules achieved
Abstract (US7717615)
In a process and apparatus for rapidly producing an emulsion and microcapsules in a simple manner, a dispersion phase is ejected from a dispersion phase-feeding port toward a continuous phase flowing in a microchannel in such a manner that flows of the dispersion phase and the continuous phase cross each other, thereby obtaining microdroplets, formed by a shear force of the continuous phase, having a size smaller than the width of the channel for feeding the dispersion phase.
Scope of claims [claim1]
1. An apparatus for producing an emulsion, comprising: (a) a microchannel formed on a substrate such that a dispersion phase thereof communicates with a continuous phase thereof;
(b) a plurality of first parallel electrodes formed in the microchannel on the substrate and in a direction perpendicular to the microchannel and arranged in stripes, a moving electric field applied to the parallel electrodes; and
(c) a plurality of second parallel electrodes formed on the substrate in a direction of the microchannel and arranged in stripes, wherein a moving electric field is applied to the second parallel electrodes by static electricity on the side of the continuous phase of the downstream of the microchannel.
[claim2]
2. The apparatus for producing an emulsion according to claim 1, wherein the moving speed of the moving electric field applied to the first parallel electrodes is varied, whereby a rate of forming the emulsion is varied.
  • Inventor, and Inventor/Applicant
  • HIGUCHI TOSHIRO
  • TORII TORU
  • NISHISAKO TAKASHI
  • TANIGUCHI TOMOHIRO
  • JAPAN SCIENCE AND TECHNOLOGY AGENCY
IPC(International Patent Classification)
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