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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 12138842 B1

PDFFull Text
Date of Patent:
Nov. 12, 2024

Filed:

Sep. 24, 2020

Ptfe porous membrane with a high strength and small pore size

Applicant:

Chemours-mitsui Fluoroproducts Co. Ltd., Tokyo, JP;

Inventors:

Kohei Miyamae, Shizuoka, JP;

Shunichi Shimatani, Shizuoka, JP;

Kazuo Konabe, Shizuoka, JP;

Ken Miura, Shizuoka, JP;

Assignee:

Chemours-Mitsui Fluoroproducts Co., Ltd., Tokyo, JP;

Attorney:
Primary Examiner:

Prashant J Khatri

Int. Cl.
CPC ...
B01D 67/00 (2006.01); B01D 69/02 (2006.01); B01D 71/36 (2006.01); B29C 48/00 (2019.01); B29C 48/08 (2019.01); B29C 55/14 (2006.01); B29K 27/18 (2006.01); B29K 105/04 (2006.01);
U.S. Cl.
CPC ...
B29C 48/022 (2019.02); B01D 67/0027 (2013.01); B01D 67/0083 (2013.01); B01D 69/02 (2013.01); B01D 71/36 (2013.01); B29C 48/08 (2019.02); B29C 55/14 (2013.01); B01D 2325/02831 (2022.08); B01D 2325/28 (2013.01); B29K 2027/18 (2013.01); B29K 2105/04 (2013.01);
Abstract

The problem of the present invention is to provide a novel polytetrafluoroethylene porous film having a small pore diameter, small film thickness, high porosity, and high strength, and a production method thereof. The present invention provides a polytetrafluoroethylene porous film, wherein a bubble point in isopropyl alcohol (IPA) according to JIS K3832 is not less than 400 kPa, and a tensile strength based on JIS K6251 is not less than 50 MPa.

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Miyamae, Kohei. (2024). Ptfe porous membrane with a high strength and small pore size (U.S. Patent No. 12138842). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12138842

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

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