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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 8974739 B1

PDFFull Text
Date of Patent:
Mar. 10, 2015

Filed:

Mar. 18, 2010

Method for producing porous film or tape of expanded polytetrafluoroethylene supporting catalyst particles, and ozone-removing filter

Applicant:

Kazumasa Yoshida, Tokyo, JP;

Inventor:

Kazumasa Yoshida, Tokyo, JP;

Assignee:

W. L. Gore & Associates, Co., Ltd., Tokyo, JP;

Attorney:

Amy L. Miller

Primary Examiner:

Walter D Griffin

Assistant Examiner:

Jelitza Perez

Int. Cl.
CPC ...
B01D 53/66 (2006.01); B01D 53/34 (2006.01); B01J 31/06 (2006.01); B29C 67/20 (2006.01); B01D 53/86 (2006.01); C08J 5/18 (2006.01); C08J 7/04 (2006.01); B29C 55/00 (2006.01); B29B 15/12 (2006.01); B29K 27/18 (2006.01);
U.S. Cl.
CPC ...
B29C 67/20 (2013.01); B01D 53/8675 (2013.01); C08J 5/18 (2013.01); C08J 7/04 (2013.01); B29C 55/005 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/1023 (2013.01); B01D 2255/20707 (2013.01); B01D 2255/2073 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/2092 (2013.01); C08J 2327/18 (2013.01); B29B 15/122 (2013.01); B29K 2027/18 (2013.01);
Abstract

An improved method for producing an expanded polytetrafluoroethylene (PTFE) porous film or tape supporting catalyst particles. The method for producing an expanded PTFE porous film or tape supporting catalyst particles according to the invention comprises a step of preparing tape-like porous PTFE, a step of impregnating the tape-like porous PTFE with a solution or dispersion of catalyst particles, a step of substantially removing the solvent or dispersing medium, and a step of further stretching the tape-like porous PTFE containing the catalyst particles in the machine direction (MD) and/or the transverse direction (TD).

Find Patent Forward Citations

Yoshida, Kazumasa. (2015). Method for producing porous film or tape of expanded polytetrafluoroethylene supporting catalyst particles, and ozone-removing filter (U.S. Patent No. 8974739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8974739

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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