DE69617707T2 - Starke, luftdurchlässige membranen aus polytetrafluorethylen - Google Patents

Starke, luftdurchlässige membranen aus polytetrafluorethylen

Info

Publication number
DE69617707T2
DE69617707T2 DE69617707T DE69617707T DE69617707T2 DE 69617707 T2 DE69617707 T2 DE 69617707T2 DE 69617707 T DE69617707 T DE 69617707T DE 69617707 T DE69617707 T DE 69617707T DE 69617707 T2 DE69617707 T2 DE 69617707T2
Authority
DE
Germany
Prior art keywords
polytetrafluoroethylene
article
microporous
ptfe
nodes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
DE69617707T
Other languages
German (de)
English (en)
Other versions
DE69617707D1 (de
Inventor
A. Branca
Wolfgang Burger
E. Hubis
Christiane Rudolf
Ralf Tillmanns
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WL Gore and Associates GmbH
WL Gore and Associates Inc
Original Assignee
WL Gore and Associates GmbH
WL Gore and Associates Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from DE19544912A external-priority patent/DE19544912A1/de
Application filed by WL Gore and Associates GmbH, WL Gore and Associates Inc filed Critical WL Gore and Associates GmbH
Priority to DE69617707T priority Critical patent/DE69617707T2/de
Publication of DE69617707D1 publication Critical patent/DE69617707D1/de
Application granted granted Critical
Publication of DE69617707T2 publication Critical patent/DE69617707T2/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D39/00—Filtering material for liquid or gaseous fluids
    • B01D39/14—Other self-supporting filtering material ; Other filtering material
    • B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
    • B01D39/1692—Other shaped material, e.g. perforated or porous sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D71/00—Semi-permeable membranes for separation processes or apparatus characterised by the material; Manufacturing processes specially adapted therefor
    • B01D71/06—Organic material
    • B01D71/30—Polyalkenyl halides
    • B01D71/32—Polyalkenyl halides containing fluorine atoms
    • B01D71/36—Polytetrafluoroethylene
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
    • B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
    • B29K2027/18—PTFE, i.e. polytetrafluoroethylene, e.g. ePTFE, i.e. expanded polytetrafluoroethylene
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2327/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers
    • C08J2327/02—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment
    • C08J2327/12—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and at least one being terminated by a halogen; Derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08J2327/18—Homopolymers or copolymers of tetrafluoroethylene
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/03—Use of materials for the substrate
    • H05K1/0313—Organic insulating material
    • H05K1/032—Organic insulating material consisting of one material
    • H05K1/034—Organic insulating material consisting of one material containing halogen
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249962—Void-containing component has a continuous matrix of fibers only [e.g., porous paper, etc.]
    • Y10T428/249964—Fibers of defined composition
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/249921—Web or sheet containing structurally defined element or component
    • Y10T428/249953—Composite having voids in a component [e.g., porous, cellular, etc.]
    • Y10T428/249978—Voids specified as micro

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
DE69617707T 1995-08-04 1996-08-02 Starke, luftdurchlässige membranen aus polytetrafluorethylen Expired - Lifetime DE69617707T2 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE69617707T DE69617707T2 (de) 1995-08-04 1996-08-02 Starke, luftdurchlässige membranen aus polytetrafluorethylen

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US189395P 1995-08-04 1995-08-04
US348795P 1995-09-08 1995-09-08
US814395P 1995-10-31 1995-10-31
DE19544912A DE19544912A1 (de) 1995-12-01 1995-12-01 PTFE-Körper aus mikroporösem Polytetrafluorethylen mit Füllstoff und Verfahren zu dessen Herstellung
PCT/US1996/012619 WO1997006206A1 (en) 1995-08-04 1996-08-02 Strong, air permeable membranes of polytetrafluoroethylene
DE69617707T DE69617707T2 (de) 1995-08-04 1996-08-02 Starke, luftdurchlässige membranen aus polytetrafluorethylen

Publications (2)

Publication Number Publication Date
DE69617707D1 DE69617707D1 (de) 2002-01-17
DE69617707T2 true DE69617707T2 (de) 2002-05-08

Family

ID=27438244

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69617707T Expired - Lifetime DE69617707T2 (de) 1995-08-04 1996-08-02 Starke, luftdurchlässige membranen aus polytetrafluorethylen

Country Status (8)

Country Link
US (1) US5814405A (https=)
EP (1) EP0850265B1 (https=)
JP (1) JP3863183B2 (https=)
AU (1) AU6687396A (https=)
CA (1) CA2233695C (https=)
DE (1) DE69617707T2 (https=)
ES (1) ES2164909T3 (https=)
WO (1) WO1997006206A1 (https=)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2839949A1 (en) 2013-08-23 2015-02-25 W.L. Gore & Associates GmbH Process for the production of a structured film
EP3061598A1 (en) 2015-02-24 2016-08-31 W.L. Gore & Associates GmbH Process for the formation of a porous film assembly
EP3284985A1 (en) 2016-08-17 2018-02-21 W.L. Gore & Associates GmbH Check valve

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2839949A1 (en) 2013-08-23 2015-02-25 W.L. Gore & Associates GmbH Process for the production of a structured film
EP3061598A1 (en) 2015-02-24 2016-08-31 W.L. Gore & Associates GmbH Process for the formation of a porous film assembly
EP3284985A1 (en) 2016-08-17 2018-02-21 W.L. Gore & Associates GmbH Check valve
WO2018033453A1 (en) 2016-08-17 2018-02-22 W.L. Gore & Associates Gmbh Check valve
US11092253B2 (en) 2016-08-17 2021-08-17 W. L. Gore & Associates Gmbh Check valve

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CA2233695C (en) 2002-12-03
DE69617707D1 (de) 2002-01-17
JPH11515036A (ja) 1999-12-21
US5814405A (en) 1998-09-29
AU6687396A (en) 1997-03-05
JP3863183B2 (ja) 2006-12-27
EP0850265B1 (en) 2001-12-05
CA2233695A1 (en) 1997-02-20
WO1997006206A1 (en) 1997-02-20
ES2164909T3 (es) 2002-03-01
EP0850265A1 (en) 1998-07-01

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