Process for preparing microcapsules with controlled-release

Details Process for preparing microcapsules with controlled-release Process for preparing microcapsules with controlled-release

1988-06-02

1990-11-13

Lovering, Richard D.

Plastic and nonmetallic article shaping or treating: processes

Encapsulating normally liquid material

Liquid encapsulation utilizing an emulsion or dispersion to...

264 47, 424455, 424497, 424501, 514963, B01J 1320, B01J 1316

Patent

active

049700316

ABSTRACT:
Microcapsules with controlled-release are prepared by subjecting microcapsules encasing an aqueous solution of a substance to be released from the microcapsules under control to a heat treatment in an aqueous solution containing the substance same with the substance to be released from the microcapsules, while selecting a heating temperature.

REFERENCES:
patent: 3565559 (1971-02-01), Sato et al.
patent: 3900669 (1975-08-01), Kiritani
patent: 4193889 (1980-03-01), Baatz et al.
patent: 4407957 (1983-10-01), Lim
patent: 4428983 (1984-01-01), Nehen et al.
patent: 4464434 (1984-08-01), Davis
patent: 4490313 (1984-12-01), Brown et al.
patent: 4683092 (1987-07-01), Tsang

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