Compact member comprising a plurality of porous cellulose matrices (PCMs)

The specification describes a compact member comprising a plurality of porous cellulose matrices (PCMs) which provide an extended release of an active compound located in the pores of PCMs together with a release-modifying agent. The friability of the compact member is less than 2.1% by weight, and...

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Bibliographische Detailangaben
Hauptverfasser:	GREN, TORKEL, NYSTROM, CHRISTER
Format:	Patent
Sprache:	eng
Schlagworte:	AGRICULTURE ANIMAL HUSBANDRY BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES, AS HERBICIDES CHEMISTRY FERTILISERS FERTILISERS CHARACTERISED BY THEIR FORM FISHING FORESTRY HUMAN NECESSITIES HUNTING HYGIENE MANUFACTURE THEREOF MEDICAL OR VETERINARY SCIENCE METALLURGY MIXTURES OF FERTILISERS COVERED INDIVIDUALLY BY DIFFERENTSUBCLASSES OF CLASS C05 MIXTURES OF ONE OR MORE FERTILISERS WITH MATERIALS NOT HAVINGA SPECIFIC FERTILISING ACTIVITY, e.g. PESTICIDES,SOIL-CONDITIONERS, WETTING AGENTS PEST REPELLANTS OR ATTRACTANTS PLANT GROWTH REGULATORS PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTSTHEREOF TRAPPING
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Beschreibung
Zusammenfassung:	The specification describes a compact member comprising a plurality of porous cellulose matrices (PCMs) which provide an extended release of an active compound located in the pores of PCMs together with a release-modifying agent. The friability of the compact member is less than 2.1% by weight, and the disintegration time in vitro of the compact member is less than 240 minutes. The compact member is manufactured by exposing a plurality of PCMs to an active compound and a release-modifying agent, in optional sequence or mixture, for a time sufficient for said active compound and release-modifying agent to fill the pores in said PCMs to a preselected level. The PCMs are subsequently compacted to a desired shape.