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Process and apparatus for producing emulsion and microcapsules achieved

Foreign code F110005690
File No. Y0144US22
Posted date Sep 9, 2011
Country United States of America
Application number 82684510
Gazette No. 20100327471
Gazette No. 8883864
Date of filing Jun 30, 2010
Gazette Date Dec 30, 2010
Gazette Date Nov 11, 2014
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
  • 2005US-11287252 (Nov 28, 2005) US
Title Process and apparatus for producing emulsion and microcapsules achieved
Abstract (US8883864)
A process and apparatus for rapidly producing an emulsion and microcapsules in a simple manner is provided wherein 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 the 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. A process for producing an emulsion, comprising: ejecting a dispersion phase towards a junction of flows of a first continuous phase and a second continuous phase, wherein a flow of the dispersion phase joins the flows of the first and second continuous phases to form the emulsion,
wherein:
the first continuous phase is ejected from a first microchannel,
the second continuous phase is ejected from a second microchannel,
the first and second microchannels substantially oppose each other,
the dispersion phase is ejected from a dispersion phase feeding channel,
the first and second microchannels are substantially perpendicular to the dispersion phase feeding channel, and
a part of the flow of the first and second continuous phases enters into the dispersion phase feeding channel.
[claim2]
2. The process for producing an emulsion according to claim 1 wherein the dispersion phase is ejected approximately perpendicular to each of the flows of the first and second continuous phases.
[claim3]
3. The process for producing an emulsion according to claim 2 wherein the dispersion phase ejected approximately perpendicular to each of the flows of the first and second continuous phases is arranged along with the flows of the first and second continuous phases at multiple positions.
  • 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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