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:
Feb. 14, 2006
Filed:
Apr. 25, 2003
Pratibhash Chattopadhyay, North Royalton, OH (US);
Boris Y. Shekunov, Aurora, OH (US);
Jeffrey S. Seitzinger, Broadview Heights, OH (US);
Robert W. Huff, North Royalton, OH (US);
Pratibhash Chattopadhyay, North Royalton, OH (US);
Boris Y. Shekunov, Aurora, OH (US);
Jeffrey S. Seitzinger, Broadview Heights, OH (US);
Robert W. Huff, North Royalton, OH (US);
Ferro Corporation, Cleveland, OH (US);
Abstract
A method of producing microparticles and nanoparticles of a solute via the extraction of solvent, having the solute dissolved therein, from an emulsion using a supercritical fluid. The solute to be precipitated is dissolved in the solvent to form a solution, and the solution is dispersed in an immiscible or partially miscible liquid to form an emulsion. The particles are produced via the extraction of the solvent from the emulsion using the supercritical fluid. The process can produce an aqueous suspension of particles that are substantially insoluble in water, and the solvents used in the process to form the emulsion initially can be recovered and recycled.