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. 24, 2012
Filed:
Aug. 23, 2006
Geert Feye Woerlee, Haarlem, NL;
Gerard Willem Hofland, Hoogmade, NL;
Pieter Sebastiaan Vermeulen, Utrecht, NL;
Geert Feye Woerlee, Haarlem, NL;
Gerard Willem Hofland, Hoogmade, NL;
Pieter Sebastiaan Vermeulen, Utrecht, NL;
Feyecon Development & Implementation B.V., Weesp, NL;
Abstract
A process for the preparation of encapsulates, employs: a pumpable emulsion having (i) a continuous phase containing a solvent and a matrix-forming solute dissolved in the solvent and (ii) a dispersed phase; an extractant including supercritical, subcritical or liquefied gas; the solvent being substantially more soluble in the extractant than the matrix-forming solute and the process including the successive steps of: a) combining the pumpable emulsion with the extractant under mixing conditions; b) allowing the formation of particulate encapsulates in which the dispersed phase is encased in a solid matrix of the matrix-forming solute; c) collecting the encapsulates and separating them from the extractant. The present processes is particularly suitable for producing particles containing active ingredients that are very sensitive, whose activity is adversely affected by exposure to oxygen, light, moisture, heat and/or friction.