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Patent Searching and Data


Title:
POLYTETRAFLUOROETHYLENE POROUS FILM HAVING HIGH STRENGTH AND SMALL PORE DIAMETER
Document Type and Number:
WIPO Patent Application WO/2021/060328
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide: a polytetrafluoroethylene porous film having high strength, high porosity, small pore diameter and thin film thickness; and a method for producing the same. The polytetrafluoroethylene porous film is characterized in that the isopropyl alcohol bubble point thereof based on JIS K3832 is at least 400kPa, and the tensile strength thereof based on JIS K6251 is at least 50 MPa.

Inventors:
MIYAMAE KOHEI (JP)
SHIMATANI SHUNICHI (JP)
KONABE KAZUO (JP)
MIURA KEN (JP)
Application Number:
PCT/JP2020/035919
Publication Date:
April 01, 2021
Filing Date:
September 24, 2020
Export Citation:
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Assignee:
CHEMOURS MITSUI FLUOROPRODUCTS CO LTD (JP)
International Classes:
B01D67/00; B01D69/02; B01D71/36; B29C48/08; B29C48/305; B29C55/14; C08J9/00; B29K27/18; B29K105/04; B29L7/00
Domestic Patent References:
WO2010084912A12010-07-29
Foreign References:
CN109224885A2019-01-18
JP2014207590A2014-10-30
JP2014133903A2014-07-24
JP2007016058A2007-01-25
Attorney, Agent or Firm:
YUITA Junji et al. (JP)
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