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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.:

US 9463420 B1

PDFFull Text
Date of Patent:
Oct. 11, 2016

Filed:

Nov. 14, 2014

Manufacturing methods for a porous fluororesin composite

Applicant:

Sumitomo Electric Fine Polymer, Inc., Sennan-gun, Osaka, JP;

Inventors:

Fumihiro Hayashi, Osaka, JP;

Itsumu Furumoto, Osaka, JP;

Shinichi Kanazawa, Osaka, JP;

Kazuaki Ikeda, Osaka, JP;

Tooru Morita, Osaka, JP;

Hajime Funatsu, Osaka, JP;

Assignee:

SUMITOMO ELECTRIC FINE POLYMER, INC., Sennan-gun, Osaka, JP;

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Nicole M Buie-Hatcher

Int. Cl.
CPC ...
B01D 67/00 (2006.01); B32B 15/16 (2006.01); B01D 63/06 (2006.01); B01D 69/12 (2006.01); B01D 71/32 (2006.01); B01D 71/34 (2006.01); B01D 71/36 (2006.01); B32B 15/08 (2006.01); C08J 5/18 (2006.01); B32B 7/12 (2006.01); B32B 15/20 (2006.01); B32B 27/32 (2006.01); B32B 1/08 (2006.01);
U.S. Cl.
CPC ...
B01D 67/0004 (2013.01); B01D 63/06 (2013.01); B01D 67/0027 (2013.01); B01D 69/12 (2013.01); B01D 71/32 (2013.01); B01D 71/34 (2013.01); B01D 71/36 (2013.01); B32B 1/08 (2013.01); B32B 7/12 (2013.01); B32B 15/08 (2013.01); B32B 15/16 (2013.01); B32B 15/20 (2013.01); B32B 27/322 (2013.01); C08J 5/18 (2013.01); B01D 2323/26 (2013.01); B01D 2325/04 (2013.01); B32B 2255/06 (2013.01); B32B 2255/26 (2013.01); B32B 2264/0257 (2013.01); B32B 2307/202 (2013.01); B32B 2307/54 (2013.01); B32B 2307/704 (2013.01); B32B 2307/726 (2013.01); C08J 2327/12 (2013.01); Y10T 428/249991 (2015.04);
Abstract

There are provided a fluororesin thin film which is composed of a fluororesin, which has a thickness of 20 μm or less and a Gurley's number of 300 seconds or more, and which includes no defects, such as voids and/or cracks; a method for manufacturing the fluororesin thin film in which after a fluororesin dispersion including a dispersing medium and a fluororesin powder dispersed therein is applied on a flat and smooth foil, the dispersing medium is dried, and the fluororesin powder is sintered; the fluororesin dispersion; a fluororesin composite including a porous base material and the fluororesin thin film; a manufacturing method thereof, a porous fluororesin composite formed by stretching the fluororesin composite; and a separation membrane element using the porous fluororesin composite.

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