Microcapsules and process for producing them

Details Microcapsules and process for producing them Microcapsules and process for producing them

1987-09-01

1990-07-24

Thexton, Matthew A.

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

42721331, 42840224, 424498, 424499, 426 72, 426805, B01J 1302

Patent

active

049434497

ABSTRACT:
Process for producing microcapsules. Wax or a mixture of wax and protein is dissolved in a mixed solvent consisting of an organic solvent and water, the surfaces of particles of a core substance are wetted with the resulting solution at temperatures of 45 deg.C or below to selectively deposit the wax or the mixture of wax and protein on the particle surfaces and allow them to coat the particle surfaces. And then a slurry containing the particles is subjected to a solvent removal treatment.

REFERENCES:
patent: 4102806 (1978-07-01), Kondo et al.
patent: 4389330 (1983-06-01), Tice et al.
patent: 4675236 (1987-06-01), Ohkawara et al.

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