PREPARATION OF CAPSULE

PROBLEM TO BE SOLVED: 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.SOLUTION: Prior art processes for producing protein-based capsules (for exa...

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Bibliographische Detailangaben
Hauptverfasser:	CHEBIYAM RAJESH, WHITESIDES THOMAS H, STEINER MICHAEL L, MANNING JEREMY J, WALLS MICHAEL D, VALIANATOS PETER J
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CONVEYING DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING FREQUENCY-CHANGING HANDLING THIN OR FILAMENTARY MATERIAL MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS NON-LINEAR OPTICS OPTICAL ANALOGUE/DIGITAL CONVERTERS OPTICAL LOGIC ELEMENTS OPTICS PACKING PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL PHYSICS STORING TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF THEIR RELEVANT APPARATUS TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: 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.SOLUTION: 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 yield can be improved by either (a) emulsifying a water-immiscible phase in a preformed coacervate of protein or (b) using a limited coalescence process with colloidal alumina as a surface-active particulate material.