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Patent Searching and Data


Title:
METHOD FOR MANUFACTURING MICROCAPSULE SLURRY
Document Type and Number:
Japanese Patent JP2009061358
Kind Code:
A
Abstract:

To provide a method for obtaining a microcapsule slurry excellent in storage stability by crushing microcapsule agglomerates in a microcapsule slurry obtained at the time of producing microcapsules in a liquid-phase method and thus forming microcapsule primary particles.

The following steps (1) to (4) are successively carried out: (1) a step of obtaining an aqueous emulsifying and dispersing agent solution; (2) a step of obtaining an emulsion of a core material by adding the core material to the aqueous emulsifying and dispersing agent solution and stirring the solution; (3) a step of obtaining a microcapsule slurry containing primary particles of microcapsules having the core material particles and a wall material and agglomerates of the primary particles by adding a material for forming the wall material to the emulsion; and (4) crushing the agglomerates by radiating ultrasonic wave to the microcapsule slurry.


Inventors:
Shinpo, Yasuyuki
Shoko, Toshikatsu
Application Number:
JP2007000229132
Publication Date:
March 26, 2009
Filing Date:
September 04, 2007
Export Citation:
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Assignee:
NIPPON OIL CORP
International Classes:
B01J13/20; B01J13/00