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:
Apr. 30, 2019
Filed:
Oct. 13, 2016
Dow Global Technologies Llc, Midland, MI (US);
Meinolf Brackhagen, Walsrode, DE;
Nicholas S. Grasman, Midland, MI (US);
Mark J. Hall, Gaylord, MI (US);
Steven J. Guillaudeu, Midland, MI (US);
Robert L. Schmitt, Annandale, NJ (US);
Matthias Knarr, Nienburg/Weser, DE;
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
A liquid composition which comprises an organic liquid diluent and at least one non-ionic cellulose ether having a viscosity of up to 2.33 mPa·s, measured as a 2 wt.-% solution in water at 20° C., is stable over an extended time period. The liquid composition is useful for preparing a solid dispersion comprising at least one active ingredient in at least one cellulose ether by spray-drying. Alternatively a solid dispersion can be produced by blending and extruding at least one active ingredient, at least one cellulose ether having a viscosity of up to 2.33 mPa·s and optionally one or more adjuvants.