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. 18, 2003
Filed:
Sep. 08, 2000
Applicant:
Inventors:
Frederick S. Mandel, Chagrin Falls, OH (US);
J. Don Wang, Brecksville, OH (US);
Assignee:
Ferro Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
A61K 9/14 ; A61K 9/16 ;
U.S. Cl.
CPC ...
A61K 9/14 ; A61K 9/16 ;
Abstract
Polymer matrices for use in orthopedic, pharmaceutical, and similar mixtures are prepared by mixing two or more polymers and a process medium in a reactor to form a supercritical fluid slurry. The process medium preferably is carbon dioxide which is supplied to the reactor in a supercritical state or which is heated and pressurized in the reactor to attain a supercritical state. After mixing for a period of time, the slurry either is left in the reactor or is discharged into a receiving vessel. The process medium is separated from the polymers and removed, leaving behind finely divided particles.