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. 25, 2018

Filed:

Apr. 26, 2013
Applicant:

The Regents of the University of Michigan, Ann Arbor, MI (US);

Inventors:

Nicholas A. Kotov, Ypsilanti, MI (US);

Ming Yang, Ann Arbor, MI (US);

Keqin Cao, Ann Arbor, MI (US);

Michael D. Thouless, Ann Arbor, MI (US);

Ellen M. Arruda, Ann Arbor, MI (US);

Anthony M. Waas, Ann Arbor, MI (US);

Carlos A. Pons Siepermann, Ann Arbor, MI (US);

Ryan M. Anderson, Commerce Township, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 5/22 (2006.01); C08G 69/32 (2006.01); C08L 77/10 (2006.01); D06M 13/123 (2006.01); D01F 6/60 (2006.01);
U.S. Cl.
CPC ...
C08G 69/32 (2013.01); B32B 5/22 (2013.01); C08L 77/10 (2013.01); D01F 6/605 (2013.01); D06M 13/123 (2013.01); Y10T 428/25 (2015.01); Y10T 428/268 (2015.01); Y10T 428/269 (2015.01); Y10T 428/298 (2015.01);
Abstract

Dissociation of a macroscale version of an aramid fiber leads to the nanofiber form of this polymer. Indefinitely stable dispersions of uniform high-aspect-ratio aramid nanofibers (ANFs) with diameters between 3 and 30 nm controlled by the media composition and up to 10 μm in length are obtained. ANFs can be processed in transparent thin films using layer-by-layer assembly (LBL) with superior mechanical performance.


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