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.

Date of Patent:
Dec. 22, 2015

Filed:

May. 16, 2012
Applicants:

Orlin D. Velev, Cary, NC (US);

Stoyan Smoukov, Skokie, IL (US);

Peter Geisen, Durham, NC (US);

Miles C. Wright, Raleigh, NC (US);

Sumit Gangwal, Morrisville, NC (US);

Inventors:

Orlin D. Velev, Cary, NC (US);

Stoyan Smoukov, Skokie, IL (US);

Peter Geisen, Durham, NC (US);

Miles C. Wright, Raleigh, NC (US);

Sumit Gangwal, Morrisville, NC (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B29B 9/10 (2006.01); C08F 6/00 (2006.01); C08J 3/11 (2006.01); D01D 5/18 (2006.01); D01F 1/10 (2006.01); D01D 5/40 (2006.01);
U.S. Cl.
CPC ...
D01F 1/10 (2013.01); D01D 5/40 (2013.01);
Abstract

Nanofibers are fabricated in a continuous process by introducing a polymer solution into a dispersion medium, which flows through a conduit and shears the dispersion medium. Liquid strands, streaks or droplets of the polymer solution are continuously shear-spun into elongated fibers. An inorganic precursor may be introduced with the polymer solution, resulting in fibers that include inorganic fibrils. The resulting composite inorganic/polymer fibers may be provided as an end product. Alternatively, the polymer may be removed to liberate the inorganic fibrils, which may be of the same or smaller cross-section as the polymer fibers and may be provided as an end product.


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