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:
Aug. 04, 2015

Filed:

Aug. 09, 2011
Applicants:

Timothy V. Ratto, Oakland, CA (US);

Jason K. Hott, Berkeley, CA (US);

Alan Szmodis, Oakland, CA (US);

Alyssa-jennifer Avestro, Evanston, IL (US);

Michael O'connell, San Jose, CA (US);

Inventors:

Timothy V. Ratto, Oakland, CA (US);

Jason K. Hott, Berkeley, CA (US);

Alan Szmodis, Oakland, CA (US);

Alyssa-Jennifer Avestro, Evanston, IL (US);

Michael O'Connell, San Jose, CA (US);

Assignee:

NAGARE MEMBRANES, LLC, Coventry, CT (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01D 39/00 (2006.01); B01D 71/06 (2006.01); B29C 45/00 (2006.01); B01D 69/12 (2006.01); B01D 69/14 (2006.01); B01D 71/56 (2006.01); B01D 71/68 (2006.01); B01D 71/48 (2006.01);
U.S. Cl.
CPC ...
B01D 69/12 (2013.01); B01D 69/148 (2013.01); B01D 71/56 (2013.01); B01D 71/68 (2013.01); B01D 71/48 (2013.01); B01D 2323/22 (2013.01);
Abstract

A polymer membrane is formed around nanotubes by applying either droplets or a thin film of a suspension of the nanotubes over a layer of a solution of the polymer, the suspending medium for the nanotubes and the solvent(s) for the polymer selected such that the suspending agent will evaporate while it is migrating into and dispersing in the solvent. When the polymer is then permitted to coagulate around the nanotubes, the coagulated polymer will fix the orientations of the nanotubes and a high proportion of the nanotubes will protrude from both sides of the resulting membrane to provide through-passages through the membrane.


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