Method of preparing microcapsules

Details Method of preparing microcapsules Method of preparing microcapsules

1981-12-21

1984-04-17

Lovering, Richard D.

Coating processes

Particles, flakes, or granules coated or encapsulated

Solid encapsulation process utilizing an emulsion or...

424 19, 424 33, 424 35, B01J 1302

Patent

active

044434979

ABSTRACT:
Microcapsules are prepared by conducting the phase-separation of a coating polymer material in the presence of ethylcellulose. Ethylcellulose present in the phase separation system minimizes the coagulation of the coating polymer material.

REFERENCES:
patent: 3141792 (1964-07-01), Lachman et al.
patent: 3336155 (1967-08-01), Rowe
patent: 3405070 (1968-10-01), Reyes
patent: 3943063 (1976-03-01), Morishita et al.
patent: 4089800 (1978-05-01), Temple
Nakano et al.: "Sustained Urinary Excretion of Sulfamethizole . . .", International Journal of Pharmacology, 4, (1980), 291-298, Elsevier/North-Holland Biomedical Press.

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