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:
Mar. 23, 2010
Filed:
Jan. 10, 2007
David M. Phillips, Dayton, OH (US);
Robert A. Mantz, Efland, NC (US);
Paul C. Trulove, Annapolis, MD (US);
Hugh C. Delong, Waldorf, MD (US);
David M. Phillips, Dayton, OH (US);
Robert A. Mantz, Efland, NC (US);
Paul C. Trulove, Annapolis, MD (US);
Hugh C. DeLong, Waldorf, MD (US);
The United States of America as represented by the Secretary of the Air Force, Washington, DC (US);
Abstract
The present invention relates to a process of forming fibers of silk and silk-like proteins in a solution with a solvent consisting of a pure ionic liquid, an ionic liquid mixture, an ionic liquid mixed with one or more cosolvents, or an ionic liquid mixture mixed with one or more cosolvents. A solution is extruded through a spinneret orifice to form a fiber. The spinneret is either directly immersed in the coagulation bath or the spinneret is surrounded by a noncoagulating medium (i.e., air or other inert fluid) and the extruded fiber is subsequently immersed in a coagulation bath. Fibers may also be formed by extruding a fiber directly from a reservoir of solution into a noncoagulating, inert medium and then immersing the extruded fibers into a coagulation bath to rinse the fiber of ionic liquid.