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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 9669608 B1

PDFFull Text
Date of Patent:
Jun. 06, 2017

Filed:

Jun. 23, 2014

Porous polytetrafluoroethylene composite and method for producing the same

Applicant:

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

Inventors:

Fumihiro Hayashi, Osaka, JP;

Aya Murata, Osaka, JP;

Atsushi Uno, Osaka, JP;

Assignee:

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

Attorney:

Drinker Biddle & Reath LLP

Primary Examiner:

Hai Vo

Int. Cl.
CPC ...
B32B 27/32 (2006.01); B32B 37/12 (2006.01); B32B 7/12 (2006.01); B32B 27/08 (2006.01); C08J 5/18 (2006.01); B32B 3/26 (2006.01); B01D 69/12 (2006.01); B01D 71/36 (2006.01); B01D 71/32 (2006.01);
U.S. Cl.
CPC ...
B32B 27/322 (2013.01); B01D 69/12 (2013.01); B01D 71/32 (2013.01); B01D 71/36 (2013.01); B32B 3/26 (2013.01); B32B 7/12 (2013.01); B32B 27/08 (2013.01); B32B 37/12 (2013.01); C08J 5/18 (2013.01); B32B 2250/04 (2013.01); B32B 2250/24 (2013.01); B32B 2305/026 (2013.01); B32B 2307/306 (2013.01); B32B 2307/54 (2013.01); B32B 2307/702 (2013.01); B32B 2309/02 (2013.01); C08J 2327/18 (2013.01); Y10T 428/249981 (2015.04);
Abstract

A porous polytetrafluoroethylene composite includes a porous polytetrafluoroethylene film, a porous support layer that supports the porous polytetrafluoroethylene film, an adhesive layer bonded to the porous polytetrafluoroethylene film, and a porous reinforcement layer bonded to the adhesive layer, in which the adhesive layer is a layer composed of a fluororesin having a melting point, or a glass transition point when a melting point is not clearly defined, of lower than 260° C.

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Hayashi, Fumihiro. (2017). Porous polytetrafluoroethylene composite and method for producing the same (U.S. Patent No. 9669608). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9669608

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