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:
Aug. 16, 2016
Filed:
Dec. 02, 2013
Abbott Gmbh & Co. KG, Weisbaden, DE;
Thomas Kessler, Schifferstadt, DE;
Jörg Breitenbach, Mannheim, DE;
Christoph Schmidt, Mannheim, DE;
Matthias Degenhardt, Ludwigshafen, DE;
Jörg Rosenberg, Ellerstadt, DE;
Harald Krull, Ludwigshafen, DE;
Gunther Berndl, Herxheim am Berg, DE;
Abbvie Deutschland GmbH & CO KG, Wiesbaden, DE;
Abstract
A process for producing a solid dispersion of an active ingredient which comprises feeding the active ingredient and a matrix-forming agent to an extruder and forming a uniform extrudate, wherein the extruder comprises at least two rotating shafts (), each of the shafts () carrying a plurality of processing elements disposed axially one behind the other, the processing elements defining (i) a feeding and conveying section (R; A), (ii) at least one reverse-flight section (D), and (iii) a discharging section (E), wherein the processing elements defining the reverse-flight section (R; D) comprise at least one reverse-flight element () which is based on a screw-type element having a conveying direction being opposite to the general conveying direction of the extruder.