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 | , , , , , |
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Format | Patent |
Language | German |
Published |
19.09.1979
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Edition | 2 |
Subjects | |
Online Access | Get full text |
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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. |
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Bibliography: | Application Number: DD19770201092 |