PROCESS FOR THE PREPARATION OF ACCELERATED RELEASE FORMULATIONS USING COMPRESSED FLUIDS
The following description refers to a process for the impregnation of cross-linked polymers with an active ingredient. The process is based on the used of compressed fluids, in particular CO2, with antisolvent effect, and involves the steps of impregnating the polymer with an active ingredient solut...
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| description | The following description refers to a process for the impregnation of cross-linked polymers with an active ingredient. The process is based on the used of compressed fluids, in particular CO2, with antisolvent effect, and involves the steps of impregnating the polymer with an active ingredient solution, adding a compressed fluid until precipitation of the active ingredient caused by the compressed fluid antisolvent effect, removing the solvent and the compressed fluid. The process allows to obtain accelerated release pharmaceutical formulations that, compared with the formulations already known, contain larger quantities of amorphous or nanocrystalline active ingredient. |
| format | Patent |
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The process is based on the used of compressed fluids, in particular CO2, with antisolvent effect, and involves the steps of impregnating the polymer with an active ingredient solution, adding a compressed fluid until precipitation of the active ingredient caused by the compressed fluid antisolvent effect, removing the solvent and the compressed fluid. The process allows to obtain accelerated release pharmaceutical formulations that, compared with the formulations already known, contain larger quantities of amorphous or nanocrystalline active ingredient.</description><language>eng ; fre ; ger</language><subject>HUMAN NECESSITIES ; HYGIENE ; MEDICAL OR VETERINARY SCIENCE ; PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES</subject><creationdate>2006</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060524&DB=EPODOC&CC=EP&NR=1267836B1$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20060524&DB=EPODOC&CC=EP&NR=1267836B1$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>COLOMBO, ITALO</creatorcontrib><creatorcontrib>PALLADO, PAOLO</creatorcontrib><title>PROCESS FOR THE PREPARATION OF ACCELERATED RELEASE FORMULATIONS USING COMPRESSED FLUIDS</title><description>The following description refers to a process for the impregnation of cross-linked polymers with an active ingredient. The process is based on the used of compressed fluids, in particular CO2, with antisolvent effect, and involves the steps of impregnating the polymer with an active ingredient solution, adding a compressed fluid until precipitation of the active ingredient caused by the compressed fluid antisolvent effect, removing the solvent and the compressed fluid. 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| subjects | HUMAN NECESSITIES HYGIENE MEDICAL OR VETERINARY SCIENCE PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES |
| title | PROCESS FOR THE PREPARATION OF ACCELERATED RELEASE FORMULATIONS USING COMPRESSED FLUIDS |
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