GB9811894D0 - Fine powder-type ptfe material - Google Patents

Fine powder-type ptfe material

Info

Publication number
GB9811894D0
GB9811894D0 GBGB9811894.6A GB9811894A GB9811894D0 GB 9811894 D0 GB9811894 D0 GB 9811894D0 GB 9811894 A GB9811894 A GB 9811894A GB 9811894 D0 GB9811894 D0 GB 9811894D0
Authority
GB
United Kingdom
Prior art keywords
fine powder
ptfe material
type ptfe
type
fine
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.)
Withdrawn
Application number
GBGB9811894.6A
Other versions
GB2337991A (en
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 UK Ltd
Original Assignee
WL Gore and Associates UK Ltd
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
Application filed by WL Gore and Associates UK Ltd filed Critical WL Gore and Associates UK Ltd
Priority to GB9811894A priority Critical patent/GB2337991A/en
Publication of GB9811894D0 publication Critical patent/GB9811894D0/en
Priority to AU41570/99A priority patent/AU4157099A/en
Priority to PCT/GB1999/001750 priority patent/WO1999062993A1/en
Publication of GB2337991A publication Critical patent/GB2337991A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • B01D69/1213—Laminated layers
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
    • A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
    • A61F5/44—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices
    • A61F5/441—Devices worn by the patient for reception of urine, faeces, catamenial or other discharge; Portable urination aids; Colostomy devices having venting or deodorant means, e.g. filters ; having antiseptic means, e.g. bacterial barriers
    • 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
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0004—Organic membrane manufacture by agglomeration of particles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D67/00—Processes specially adapted for manufacturing semi-permeable membranes for separation processes or apparatus
    • B01D67/0002—Organic membrane manufacture
    • B01D67/0004—Organic membrane manufacture by agglomeration of particles
    • B01D67/00041—Organic membrane manufacture by agglomeration of particles by sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D69/00—Semi-permeable membranes for separation processes or apparatus characterised by their form, structure or properties; Manufacturing processes specially adapted therefor
    • B01D69/12—Composite membranes; Ultra-thin membranes
    • 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—Polytetrafluoroethene
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2325/00—Details relating to properties of membranes
    • B01D2325/04—Characteristic thickness
    • 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
GB9811894A 1998-06-04 1998-06-04 Fine powder type PTFE material Withdrawn GB2337991A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9811894A GB2337991A (en) 1998-06-04 1998-06-04 Fine powder type PTFE material
AU41570/99A AU4157099A (en) 1998-06-04 1999-06-03 Fine powder-type porous ptfe material
PCT/GB1999/001750 WO1999062993A1 (en) 1998-06-04 1999-06-03 Fine powder-type porous ptfe material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9811894A GB2337991A (en) 1998-06-04 1998-06-04 Fine powder type PTFE material

Publications (2)

Publication Number Publication Date
GB9811894D0 true GB9811894D0 (en) 1998-07-29
GB2337991A GB2337991A (en) 1999-12-08

Family

ID=10833110

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9811894A Withdrawn GB2337991A (en) 1998-06-04 1998-06-04 Fine powder type PTFE material

Country Status (3)

Country Link
AU (1) AU4157099A (en)
GB (1) GB2337991A (en)
WO (1) WO1999062993A1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2005042628A1 (en) 2003-11-03 2005-05-12 Porex Corporation Sintered porous high melt-flow index materials and methods of making same
US7498392B2 (en) 2005-01-19 2009-03-03 Nelson Kevin G Methods and compositions for dielectric materials
US8637144B2 (en) * 2007-10-04 2014-01-28 W. L. Gore & Associates, Inc. Expandable TFE copolymers, method of making, and porous, expended articles thereof
US9040646B2 (en) 2007-10-04 2015-05-26 W. L. Gore & Associates, Inc. Expandable TFE copolymers, methods of making, and porous, expanded articles thereof
US9650479B2 (en) 2007-10-04 2017-05-16 W. L. Gore & Associates, Inc. Dense articles formed from tetrafluoroethylene core shell copolymers and methods of making the same
WO2010048496A1 (en) * 2008-10-24 2010-04-29 Porex Corporation Composite ptfe material and applications thereof
US8808848B2 (en) * 2010-09-10 2014-08-19 W. L. Gore & Associates, Inc. Porous article
US8937132B2 (en) * 2010-12-21 2015-01-20 Daikin Industries, Ltd. Polytetrafluoroethylene mixture
US9644054B2 (en) 2014-12-19 2017-05-09 W. L. Gore & Associates, Inc. Dense articles formed from tetrafluoroethylene core shell copolymers and methods of making the same
FR3040240B1 (en) 2015-08-19 2017-08-04 Commissariat Energie Atomique FUEL CELL WITH INTEGRATED WATER MANAGEMENT LAYER AND METHOD FOR PRODUCING THE SAME
CN109603570A (en) * 2018-10-26 2019-04-12 德蓝水技术股份有限公司 The modified method of polytetrafluoroethylhollow hollow fiber hydrophilic microporous membrane
CN113088018B (en) * 2021-04-14 2023-04-07 深圳市富程威科技有限公司 Polytetrafluoroethylene breathable film and preparation method and application thereof
CN113105659A (en) * 2021-04-14 2021-07-13 深圳市富程威科技有限公司 Polytetrafluoroethylene microporous film and preparation method and application thereof
CN113045788B (en) * 2021-04-14 2022-01-18 深圳市富程威科技有限公司 Microporous film and preparation method and application thereof

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5856171B2 (en) * 1979-01-31 1983-12-13 日東電工株式会社 porous sliding sheet
JPS6166730A (en) * 1984-09-07 1986-04-05 Chuko Kasei Kogyo Kk Production of porous material of polytetrafluoroethylene resin
JPH0391544A (en) * 1989-09-01 1991-04-17 Junkosha Co Ltd Porous tetrafluoroethylene resin body
DE69221186T2 (en) * 1991-04-04 1997-11-20 Daikin Ind Ltd Molding process for making porous polytetrafluoroethylene articles
US5358678A (en) * 1991-07-04 1994-10-25 Mitsubishi Kasei Corporation Polytetrafluoroethylene porous film and process for preparing the same
GB9202360D0 (en) * 1992-02-04 1992-03-18 Gore W L & Ass Uk Ostomy filter
CA2222955C (en) * 1995-06-07 2001-03-20 Francis Michael John Mccollam Porous composite
GB9606819D0 (en) * 1996-03-30 1996-06-05 Gore W L & Ass Uk Granular-type polytetrafluoroethylene dispersions and fused articles prepared therefrom (Case B)

Also Published As

Publication number Publication date
GB2337991A (en) 1999-12-08
AU4157099A (en) 1999-12-20
WO1999062993A1 (en) 1999-12-09

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Legal Events

Date Code Title Description
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)