Aqueous dispersions of waxes and lipids for pharmaceutical coati

Details Aqueous dispersions of waxes and lipids for pharmaceutical coati Aqueous dispersions of waxes and lipids for pharmaceutical coati

1987-09-08

1991-06-11

Silverberg, Sam

Coating processes

Fraud or tamper detecting

424476, 424450, A61K 942

Patent

active

050231081

ABSTRACT:
This invention relates to the coating of pharmaceutically useful solids with an emulsion comprising a wax/lipid, an emulsifying agent and water, which emulsion can be spray dried to form a powder which can subsequently be dispersed in water and coated onto the surface of medicaments to form a protective, enteric and/or controlled release of drug-containing granules, pellets and tablets.

REFERENCES:
patent: 2800463 (1957-07-01), Morrison
patent: 3438797 (1969-04-01), Biddl
patent: 3644130 (1972-02-01), Evans
patent: 3935326 (1976-01-01), Groppenbachu
patent: 3981957 (1976-09-01), Brederode
patent: 4002706 (1977-01-01), Pretorious
patent: 4508703 (1985-04-01), Redziniak

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