Process for producing microcapsules

Details Process for producing microcapsules Process for producing microcapsules

1993-09-13

1995-11-28

Lovering, Richard D.

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

8426, 424490, 4272133, 42721336, 4284022, 42840222, 42840224, 512 4, 514963, B01J 1310, A01N 2528, A61K 950

Patent

active

054705126

ABSTRACT:
The present invention relates to a microcapsule having a core material encapsulated with a capsule wall obtained by coagulating the fine colloidal particles by using an electrolyte, and a process for producing such microcapsules. In the present invention, inorganic and/or organic colloidal particles are used as the wall material and such particles are coagulated by using an electrolyte to form the capsule wall, so that it is possible to produce the microcapsules under mild conditions and with simple operations, and in addition, even the physically and/or chemically instable core materials can be easily encapsulated.

REFERENCES:
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patent: 3639257 (1972-02-01), Harbort
patent: 3791987 (1974-02-01), Fanger
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patent: 4781858 (1988-11-01), Mizukami et al.
Database WPI, AN=78-27830A [15], Derwent Publications Ltd, London, GB; & JP-A-53 022 530 (Agency of Ind. Sci. Tech.) Mar. 2, 1978.
Patent Abstracts of Japan, vol. 13, No. 69, (C-569)[3417], 16th Feb. 1989; & JP-A-63 258 642 (Agency of Ind. Science & Technology) Oct. 26, 1988.

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