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Title:
PREPARATION OF CAPSULES
Document Type and Number:
Japanese Patent JP2011170389
Kind Code:
A
Abstract:

To provide two different approach methods having such a purpose that disadvantage in prior art processes for producing capsules is conquered, thereby, yield of useful capsules is increased substantially.

Prior art processes for producing protein-based capsules (for example, capsules for use in electrophoretic media) tend to be wasteful. Because, the prior art processes produce many capsules outside the desired size, which is typically about 20 to 50 μm. Capsule size distribution and yields can be improved by: either (a) emulsifying a water-immiscible phase in a preformed coacervate of the protein; (b) using a limited coalescence process with colloidal alumina as the surface-active particulate material.


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Inventors:
VALIANATOS PETER J
CHEBIYAM RAJESH
MANNING JEREMY J
STEINER MICHAEL L
WHITESIDES THOMAS H
WALLS MICHAEL D
Application Number:
JP2011124634A
Publication Date:
September 01, 2011
Filing Date:
June 02, 2011
Export Citation:
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Assignee:
E INK CORP
International Classes:
B01J13/08; B65B1/00; G02F1/167
Domestic Patent References:
JPS5137272B11976-10-14
JPS5825496B21983-05-27
JPS5862655A1983-04-14
JPS3712378B1
JPS4818642B11973-06-07
JPS5844079B21983-09-30
JPS6156355A1986-03-22
JPS61254243A1986-11-12
JPS614527A1986-01-10
JPH0627716A1994-02-04
JPS5062878A1975-05-29
JP2932629B21999-08-09
JPH02164439A1990-06-25
JP2003290647A2003-10-14
JPS5034513B11975-11-08
JPS50142476A1975-11-17
JP2013047831A2013-03-07
JPS5137272B11976-10-14
JPS5825496B21983-05-27
JPS5862655A1983-04-14
JPS3712378B1
JPS4818642B11973-06-07
JPS5844079B21983-09-30
JPS6156355A1986-03-22
JPS61254243A1986-11-12
JPS614527A1986-01-10
JPH0627716A1994-02-04
JPS5062878A1975-05-29
JP2932629B21999-08-09
JPH02164439A1990-06-25
Foreign References:
US2800457A1957-07-23
US20040012849A12004-01-22
US3539465A1970-11-10
US20020180687A12002-12-05
US2800457A1957-07-23
US20040012849A12004-01-22
Attorney, Agent or Firm:
Hidesaku Yamamoto
Takaaki Yasumura
Natsuki Morishita



 
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