The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 05, 2005
Filed:
Mar. 07, 2001
Italo Colombo, Inzago, IT;
Paolo Pallado, Padua, IT;
Italo Colombo, Inzago, IT;
Paolo Pallado, Padua, IT;
Eurand International S.p.A., , IT;
Abstract
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 CO, 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.