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:
Nov. 19, 2013
Filed:
Dec. 01, 2008
Mustafa Demirbüker, Järfälla, SE;
Mustafa Demirbüker, Järfälla, SE;
XSpray Microparticles AB, Stockholm, SE;
Abstract
A method for producing particles, from a substance, having predetermined size and/or morphology characteristics. The method consists of mixing within a spray nozzle a solution stream containing the substance in dissolved or dispersed form with a supercritical fluid stream. Spraying the mixture through a nozzle into a particle collecting chamber and there separating the particles. The characteristic feature is an additional step, providing a make-up agent (modifier) to the fluid stream, possibly combined with recycling of the fluid and/or performing the method essentially simultaneously in several spray nozzles. Additional features are also a production system comprising functions for performing the method above and the introduction of the make-up agent, recycling of the fluid and performing several runs essentially simultaneously in the same production system. Also a pharmaceutical formulation in which particles produced according to the method has been used for its manufacture.