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:
May. 15, 2018
Filed:
Aug. 25, 2014
Dow Global Technologies Llc, Midland, MI (US);
Union Carbide Chemicals & Plastics Technology Llc, Midland, MI (US);
Rohm and Haas Company, Philadelphia, PA (US);
True L. Rogers, Midland, MI (US);
Aslin Izmitli, Yardley, PA (US);
Susan L. Jordan, Doylestown, PA (US);
David L. Malotky, Midland, MI (US);
Shari L. Workentine, Midland, MI (US);
Kebede Beshah, Harleysville, PA (US);
ROHM AND HAAS COMPANY, Philadelphia, PA (US);
DOW GLOBAL TECHNOLOGIES LLC, Midland, MI (US);
Abstract
A process to produce a dispersion comprising feeding ethylcellulose polymer and a dispersant into a melt and mix zone of an extruder wherein the ethylcellulose polymer and dispersant are melted and mixed together to form a melt; conveying the melt to an emulsification zone of the extruder in which the temperature and pressure are controlled; feeding a base and water into the emulsification zone wherein the melt is dispersed to form a high internal phase emulsion; conveying the emulsion to a dilution and cooling zone of the extruder; and feeding water into the dilution and cooling zone to dilute the high internal phase emulsion thereby forming an aqueous dispersion is provided.