POROUS POLYTETRAFLUOROETHYLENE FILM AND WATERPROOF AIR-PERMEABLE MEMBER

Provided is a porous polytetrafluoroethylene (PTFE) membrane that satisfies the following expressions: 0.2 ‰¤ F ‰¤ 4.0; 0.2 ‰¤ R ‰¤ 1.0; and R ‰¥ -0.1F + 0.5, for the Frazier number F [cm 3 /sec/cm 2 ] and the water entry pressure R [MPa]. This porous PTFE membrane may be a single-layer membrane. Th...

Full description

Saved in:
Bibliographic Details
Main Authors ISHII, Kyoko, AIZAWA, Seiji
Format Patent
LanguageEnglish
French
German
Published 28.04.2021
Subjects
AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
Online AccessGet full text

Cover

Abstract Provided is a porous polytetrafluoroethylene (PTFE) membrane that satisfies the following expressions: 0.2 ‰¤ F ‰¤ 4.0; 0.2 ‰¤ R ‰¤ 1.0; and R ‰¥ -0.1F + 0.5, for the Frazier number F [cm 3 /sec/cm 2 ] and the water entry pressure R [MPa]. This porous PTFE membrane may be a single-layer membrane. This porous PTFE membrane has the properties suitable for use as a waterproof air-permeable membrane, and achieves a good balance between high water resistance and high air permeability.
AbstractList Provided is a porous polytetrafluoroethylene (PTFE) membrane that satisfies the following expressions: 0.2 ‰¤ F ‰¤ 4.0; 0.2 ‰¤ R ‰¤ 1.0; and R ‰¥ -0.1F + 0.5, for the Frazier number F [cm 3 /sec/cm 2 ] and the water entry pressure R [MPa]. This porous PTFE membrane may be a single-layer membrane. This porous PTFE membrane has the properties suitable for use as a waterproof air-permeable membrane, and achieves a good balance between high water resistance and high air permeability.
Author ISHII, Kyoko
AIZAWA, Seiji
Author_xml – fullname: ISHII, Kyoko
– fullname: AIZAWA, Seiji
BookMark eNrjYmDJy89L5WRwD_AP8g8NVgjw94kMcQ0JcnTzCQWKuIZ4RPq4-rkquHn6-Co4-rkohDuGuAYFBPn7uyk4egbpBrgG-bo6Ovm4Kvi6-jq5BvEwsKYl5hSn8kJpbgYFN9cQZw_d1IL8-NTigsTk1LzUknjXACMLEwszE2MnQ2MilAAA-DIujw
ContentType Patent
DBID EVB
DatabaseName esp@cenet
DatabaseTitleList
Database_xml – sequence: 1
  dbid: EVB
  name: esp@cenet
  url: http://worldwide.espacenet.com/singleLineSearch?locale=en_EP
  sourceTypes: Open Access Repository
DeliveryMethod fulltext_linktorsrc
Discipline Medicine
Chemistry
Sciences
DocumentTitleAlternate PORÖSE POLYTETRAFLUORETHYLENFOLIE UND WASSERDICHTES LUFTDURCHLÄSSIGES ELEMENT
FILM DE POLYTÉTRAFLUOROÉTHYLÈNE POREUX ET ÉLÉMENT PERMÉABLE À L'AIR ET IMPERMÉABLE À L'EAU
ExternalDocumentID EP2848643B1
GroupedDBID EVB
ID FETCH-epo_espacenet_EP2848643B13
IEDL.DBID EVB
IngestDate Fri Jul 19 12:46:30 EDT 2024
IsOpenAccess true
IsPeerReviewed false
IsScholarly false
Language English
French
German
LinkModel DirectLink
MergedId FETCHMERGED-epo_espacenet_EP2848643B13
Notes Application Number: EP20120876169
OpenAccessLink https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210428&DB=EPODOC&CC=EP&NR=2848643B1
ParticipantIDs epo_espacenet_EP2848643B1
PublicationCentury 2000
PublicationDate 20210428
PublicationDateYYYYMMDD 2021-04-28
PublicationDate_xml – month: 04
  year: 2021
  text: 20210428
  day: 28
PublicationDecade 2020
PublicationYear 2021
RelatedCompanies Nitto Denko Corporation
RelatedCompanies_xml – name: Nitto Denko Corporation
Score 3.3336806
Snippet Provided is a porous polytetrafluoroethylene (PTFE) membrane that satisfies the following expressions: 0.2 ‰¤ F ‰¤ 4.0; 0.2 ‰¤ R ‰¤ 1.0; and R ‰¥ -0.1F + 0.5,...
SourceID epo
SourceType Open Access Repository
SubjectTerms AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G
CHEMISTRY
COMPOSITIONS BASED THEREON
GENERAL PROCESSES OF COMPOUNDING
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
SEPARATION
THEIR PREPARATION OR CHEMICAL WORKING-UP
TRANSPORTING
WORKING-UP
Title POROUS POLYTETRAFLUOROETHYLENE FILM AND WATERPROOF AIR-PERMEABLE MEMBER
URI https://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20210428&DB=EPODOC&locale=&CC=EP&NR=2848643B1
hasFullText 1
inHoldings 1
isFullTextHit
isPrint
link http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LT8MwDLamgYAbDBDjpRxQbxV0jz4OE-ojpUNtE4UWttO0PpB26SZWxN_HqbbBBW6WI0VOJOfz5zgOwN0cSU-ByKPOtUKmbjRNzSyjr75n5iAfloZsSS6rLWI9SAfPk-GkBYvtW5imT-hX0xwRPSpHf6-b83r1k8TymtrK9X22QNXy0U9GnrJhx8hfMJxWPGdEOfOYq7guSkosRngKmwi-DhKlPYyiDVn9RV8d-Shl9RtR_GPY5zhZVZ9Aq6w6cOhuP17rwEG0ue9GceN661N44kyw9IVwFk4TmgjbD1PU0CSYhjSmxB-HEbFjj7zZGKFywZhP7LFQORURtZ2QkohGDhVnQHyauIGKFs12q59RvrO9fw7talmVF0CQBxUFQkyeI8cx9AerVxiFZpk9a57nmZ51ofvnNJf_jF3BkdxGeV_SM6-hXX98ljcIu3V222zYN97HgIU
link.rule.ids 230,309,783,888,25578,76884
linkProvider European Patent Office
linkToHtml http://utb.summon.serialssolutions.com/2.0.0/link/0/eLvHCXMwfV1LT8MwDLamgRg3GCDGMwfUWwXdq-1hQn2kdJA2UelgO03rY9Iu3cSK-Ps41Ta4wM1KpMiJ5Hz-7NgBuJsh6ckQedSZlsnQjaapial31HlidNNersuW5PK1Rdj3R93ncW9cg8W2FqbqE_pVNUdEi0rR3svqvl79BLHc6m3l-j5Z4NDy0YsHrrJhx8hf0J1WXHtABXe5ozgOSkoYDfAWNhB8bSRKe-hhG7LNPn2zZVHK6jeieEewL3CxojyGWl40oeFsP15rwkGwyXejuDG99Qk8CR7x0SsRnE1iGkeWx0Y4QmN_wmhIiTdkAbFCl7xb6KGKiHOPWMNIFTQKqGUzSgIa2DQ6BeLR2PFV1Gi62_2Uip3unTOoF8siPweCPCjLEGLSFDmO3n8w25meaabRNmdpmvSTFrT-XObin7lbaPhxwKZsGL5cwqE8Upk7aRtXUC8_PvNrhOAyuakO7xsNxIN1
openUrl ctx_ver=Z39.88-2004&ctx_enc=info%3Aofi%2Fenc%3AUTF-8&rfr_id=info%3Asid%2Fsummon.serialssolutions.com&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Apatent&rft.title=POROUS+POLYTETRAFLUOROETHYLENE+FILM+AND+WATERPROOF+AIR-PERMEABLE+MEMBER&rft.inventor=ISHII%2C+Kyoko&rft.inventor=AIZAWA%2C+Seiji&rft.date=2021-04-28&rft.externalDBID=B1&rft.externalDocID=EP2848643B1