UEBERZUGMATERIAL ZUR GEREGELTEN WIRKSTOFFABGABE BIOLOGISCH AKTIVER PRAEPARATE

A coating ensuring the controlled release of a biological active ingredient, which can be incorporated in the coating or is surrounded thereby, consists of a varnish-forming polymer selected from the group which consists of cellulose triacetate containing polyethylene glycol as an emollient and viny...

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Main Authors KOLBE,ILONA,HU, TAKACS,ERZSEBET,HU, HORTOBAGYI,GYOEZOE,HU, HOFFMANN,KATALIN,HU, SKVORECZ,MARIANNE,HU, DOBO,JANOS,HU
Format Patent
LanguageGerman
Published 19.09.1979
Edition2
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Summary:A coating ensuring the controlled release of a biological active ingredient, which can be incorporated in the coating or is surrounded thereby, consists of a varnish-forming polymer selected from the group which consists of cellulose triacetate containing polyethylene glycol as an emollient and vinyl chloride-vinyl acetate copolymer with glycerol as an emollient, and an aqueous phase dispersed in the polymer and consisting of particles of a diameter up to 20 microns, the aqueous phase making up 2% to 30% of the volume of the coating. The active ingredient is preferably a pharmaceutical agent affecting the circulatory system or a psychotropic agent.
Bibliography:Application Number: DD19770201092