DE69100213T2 - Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode. - Google Patents

Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode.

Info

Publication number
DE69100213T2
DE69100213T2 DE91301387T DE69100213T DE69100213T2 DE 69100213 T2 DE69100213 T2 DE 69100213T2 DE 91301387 T DE91301387 T DE 91301387T DE 69100213 T DE69100213 T DE 69100213T DE 69100213 T2 DE69100213 T2 DE 69100213T2
Authority
DE
Germany
Prior art keywords
polytetrafluoroethylene
manufacturing
composite article
article made
controlled pores
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 - Fee Related
Application number
DE91301387T
Other languages
English (en)
Other versions
DE69100213D1 (de
Inventor
Donald F Hagen
Craig G Markell
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.)
3M Co
Original Assignee
Minnesota Mining and Manufacturing Co
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 Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co
Publication of DE69100213D1 publication Critical patent/DE69100213D1/de
Application granted granted Critical
Publication of DE69100213T2 publication Critical patent/DE69100213T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/92—Measuring, controlling or regulating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28069—Pore volume, e.g. total pore volume, mesopore volume, micropore volume
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28028—Particles immobilised within fibres or filaments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28014—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their form
    • B01J20/28033—Membrane, sheet, cloth, pad, lamellar or mat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/28—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties
    • B01J20/28054—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J20/28078—Pore diameter
    • B01J20/28085—Pore diameter being more than 50 nm, i.e. macropores
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
    • B01D15/32—Bonded phase chromatography
    • B01D15/322—Normal bonded phase
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D15/00—Separating processes involving the treatment of liquids with solid sorbents; Apparatus therefor
    • B01D15/08—Selective adsorption, e.g. chromatography
    • B01D15/26—Selective adsorption, e.g. chromatography characterised by the separation mechanism
    • B01D15/32—Bonded phase chromatography
    • B01D15/325—Reversed phase
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/50—Conditioning of the sorbent material or stationary liquid
    • G01N30/52—Physical parameters
    • G01N2030/524—Physical parameters structural properties
    • G01N2030/528—Monolithic sorbent material
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/47—Processes of splitting film, webs or sheets
DE91301387T 1990-02-23 1991-02-21 Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode. Expired - Fee Related DE69100213T2 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US48418490A 1990-02-23 1990-02-23
US07/639,515 US5071610A (en) 1990-02-23 1991-01-10 Method of making a controlled pore composite polytetrafluoroethylene

Publications (2)

Publication Number Publication Date
DE69100213D1 DE69100213D1 (de) 1993-09-09
DE69100213T2 true DE69100213T2 (de) 1994-02-10

Family

ID=27047905

Family Applications (1)

Application Number Title Priority Date Filing Date
DE91301387T Expired - Fee Related DE69100213T2 (de) 1990-02-23 1991-02-21 Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode.

Country Status (14)

Country Link
US (1) US5071610A (de)
EP (1) EP0443853B1 (de)
JP (1) JP2716879B2 (de)
KR (1) KR910021429A (de)
CN (1) CN1054256A (de)
AU (1) AU636703B2 (de)
BR (1) BR9100726A (de)
CA (1) CA2035295A1 (de)
CS (1) CS44691A2 (de)
DE (1) DE69100213T2 (de)
DK (1) DK0443853T3 (de)
ES (1) ES2043431T3 (de)
HU (1) HUT60311A (de)
MX (1) MX166623B (de)

Families Citing this family (85)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5217666A (en) * 1991-05-29 1993-06-08 Daikin Industries Ltd. Process for producing porous polytetrafluoroethylene film
US5238621A (en) * 1991-06-28 1993-08-24 Minnesota Mining And Manufacturing Company Method of controlling porosity in a composite article
US5248428A (en) * 1991-06-28 1993-09-28 Minnesota Mining And Manufacturing Company Article for separations and purifications and method of controlling porosity therein
US5993935A (en) * 1991-10-11 1999-11-30 3M Innovative Properties Company Covalently reactive particles incorporated in a continous porous matrix
US5328758A (en) * 1991-10-11 1994-07-12 Minnesota Mining And Manufacturing Company Particle-loaded nonwoven fibrous article for separations and purifications
US5328756A (en) * 1992-01-31 1994-07-12 Minnesota Mining And Manufacturing Company Temperature sensitive circuit breaking element
US5209967A (en) * 1992-01-31 1993-05-11 Minnesota Mining And Manufacturing Company Pressure sensitive membrane and method therefor
JPH07507014A (ja) * 1992-03-13 1995-08-03 アトリウム　メディカル　コーポレイション 制御された多孔度の膨張ポリテトラフルオロエチレン製品及び二次加工
US5338448A (en) * 1992-10-16 1994-08-16 Sarasep, Inc. Method of preventing contamination of a chromatography column
US5383573A (en) * 1992-11-04 1995-01-24 Minnesota Mining And Manufacturing Company Separation-science membrane dispenser
US5340746A (en) * 1993-01-08 1994-08-23 Minnesota Mining And Manufacturing Company Composite reactive articles for the determination of cyanide
US5354603A (en) * 1993-01-15 1994-10-11 Minnesota Mining And Manufacturing Company Antifouling/anticorrosive composite marine structure
US5453235A (en) * 1993-01-29 1995-09-26 Impra, Inc. Method of forming dual porosity FTFE tubes by extrusion of concentric preforms
US5391298B1 (en) * 1993-03-05 1997-10-28 Minnesota Mining & Mfg Method for performing a solid-phase extraction under pressurized conditions
US5403489A (en) * 1993-06-24 1995-04-04 Minnesota Mining And Manufacturing Company Solid phase extraction method and apparatus
CA2137970A1 (en) * 1994-01-10 1995-07-11 Lloyd R. White Cartridge sorption device
US6207251B1 (en) * 1994-01-10 2001-03-27 Minnesota Mining And Manufacturing Company Reinforced particle-loaded fibrillated PTFE web
US5582892A (en) * 1994-04-08 1996-12-10 Minnesota Mining And Manufacturing Company Dimensionally stable particle-loaded PTFE web
US5476665A (en) * 1994-04-13 1995-12-19 Minnesota Mining And Manufacturing Company Azlactone functional particles incorporated in a membrane formed by solvent phase inversion
EP0758261B1 (de) * 1994-05-05 1998-08-26 Minnesota Mining And Manufacturing Company Chemisch modifizierte festphase-extraktionspartikel und diese enthaltende artikel
US5492627A (en) * 1994-06-29 1996-02-20 Minnesota Mining And Manufacturing Company Method for separating mercury from fluids using composite articles
US5529686A (en) 1994-07-15 1996-06-25 Minnesota Mining And Manufacturing Company Composite membranes for solid phase extractions and reactions
EP0790860B1 (de) * 1994-11-10 1998-10-28 Minnesota Mining And Manufacturing Company Festphaseextraktion durch verwendung einer verbundfolie für direktes messen der radioaktivität
US5833860A (en) * 1995-08-28 1998-11-10 Millipore Investment Holdings Limited Centrifugal adsorptive sample preparation device and method
US5700375A (en) * 1996-04-29 1997-12-23 Minnesota Mining And Manufacturing Company Particle loaded membranes as oxidant scavengers
US5830923A (en) * 1996-05-22 1998-11-03 E. I. Du Pont De Nemours And Company Foamed fluoropolymer
EP0910447A1 (de) 1996-07-12 1999-04-28 Ibc Advanced Technologies, Inc. Methode zur kolorimetrischen quantifizierung von ionen
US5911883A (en) * 1996-10-04 1999-06-15 Minnesota Mining And Manufacturing Company Flow-by solid phase extraction method
AU2209197A (en) * 1996-11-13 1998-06-03 Minnesota Mining And Manufacturing Company Storage and delivery of pressurized gases in microbubbles
US5928811A (en) * 1997-04-11 1999-07-27 Amtek Research International Llc Gas recombinant battery separator
US6036945A (en) 1997-04-11 2000-03-14 Shamrock Technologies, Inc. Delivery systems for active ingredients including sunscreen actives and methods of making same
US6139749A (en) * 1997-11-20 2000-10-31 3M Innovative Properties Company Method for radioactive species analysis using a self-scintillating sheet material
US6908553B1 (en) * 1998-07-08 2005-06-21 Baxter International Inc. Composite membrane with particulate matter substantially immobilized therein
US6099734A (en) * 1998-07-08 2000-08-08 Baxter International Inc. Apparatus, membranes and methods for removing organic compounds from a biological fluid
EP1115483B1 (de) 1998-09-14 2003-11-26 3M Innovative Properties Company Extraktionseinheiten und verfahren
US6083439A (en) * 1998-09-25 2000-07-04 Auergesellschaft Gmbh Polymer-bonded material
US6436294B2 (en) 1998-11-24 2002-08-20 3M Innovative Properties Company Process for modifying the metal ion sorption capacity of a medium
GB9920170D0 (en) * 1999-08-25 1999-10-27 Univ Portsmouth A passive sampling device
US6383783B1 (en) 1999-09-21 2002-05-07 3M Innovative Properties Company Nucleic acid isolation by adhering to hydrophobic solid phase and removing with nonionic surfactant
US6631074B2 (en) 2000-05-12 2003-10-07 Maxwell Technologies, Inc. Electrochemical double layer capacitor having carbon powder electrodes
US6627252B1 (en) 2000-05-12 2003-09-30 Maxwell Electronic Components, Inc. Electrochemical double layer capacitor having carbon powder electrodes
US6643119B2 (en) * 2001-11-02 2003-11-04 Maxwell Technologies, Inc. Electrochemical double layer capacitor having carbon powder electrodes
WO2003100954A2 (en) * 2002-05-24 2003-12-04 Amtek Research International Llc Microporous, mixed polymer phase membrane
US7077891B2 (en) * 2002-08-13 2006-07-18 Air Products And Chemicals, Inc. Adsorbent sheet material for parallel passage contactors
US7771818B2 (en) * 2002-09-20 2010-08-10 Bha Group, Inc. Treatment of porous article
US7201841B2 (en) 2003-02-05 2007-04-10 Water Visions International, Inc. Composite materials for fluid treatment
US7791860B2 (en) 2003-07-09 2010-09-07 Maxwell Technologies, Inc. Particle based electrodes and methods of making same
US7352558B2 (en) 2003-07-09 2008-04-01 Maxwell Technologies, Inc. Dry particle based capacitor and methods of making same
US20070122698A1 (en) * 2004-04-02 2007-05-31 Maxwell Technologies, Inc. Dry-particle based adhesive and dry film and methods of making same
US20060147712A1 (en) * 2003-07-09 2006-07-06 Maxwell Technologies, Inc. Dry particle based adhesive electrode and methods of making same
US7920371B2 (en) * 2003-09-12 2011-04-05 Maxwell Technologies, Inc. Electrical energy storage devices with separator between electrodes and methods for fabricating the devices
US7300801B2 (en) * 2003-09-12 2007-11-27 3M Innovative Properties Company Welded sample preparation articles and methods
US7410458B2 (en) * 2003-11-12 2008-08-12 Isoray Medical, Inc. Brachytherapy implant seeds
US20050130177A1 (en) 2003-12-12 2005-06-16 3M Innovative Properties Company Variable valve apparatus and methods
US7939249B2 (en) 2003-12-24 2011-05-10 3M Innovative Properties Company Methods for nucleic acid isolation and kits using a microfluidic device and concentration step
US7727710B2 (en) 2003-12-24 2010-06-01 3M Innovative Properties Company Materials, methods, and kits for reducing nonspecific binding of molecules to a surface
CA2553695A1 (en) * 2004-01-20 2005-12-29 Porous Power Technologies Highly microporous polymers and methods for producing and using the same
US7090946B2 (en) 2004-02-19 2006-08-15 Maxwell Technologies, Inc. Composite electrode and method for fabricating same
US8636919B1 (en) 2004-03-26 2014-01-28 Kenneth D. Hughes Reactive solutions
US7383946B2 (en) 2004-03-26 2008-06-10 Hughes Kenneth D Materials for storing and releasing reactive gases
WO2006012153A1 (en) * 2004-06-28 2006-02-02 Isoray Medical, Inc. Method of separating and purifying cesium-131 from barium nitrate
US7517508B2 (en) * 2004-07-26 2009-04-14 Isoray Medical, Inc. Method of separating and purifying Yttrium-90 from Strontium-90
CA2576907C (en) * 2004-07-28 2014-04-22 Isoray Medical, Inc. Method of separating and purifying cesium-131 from barium carbonate
WO2006096206A2 (en) * 2004-08-18 2006-09-14 Isoray Medical, Inc. Method for preparing particles of radioactive powder containing cesium-131 for use in brachytherapy sources
JP4791049B2 (ja) * 2005-02-16 2011-10-12 ニチアス株式会社 エアフィルタ用シート及びその製造方法並びにエアフィルタ
US7440258B2 (en) * 2005-03-14 2008-10-21 Maxwell Technologies, Inc. Thermal interconnects for coupling energy storage devices
JP4646301B2 (ja) * 2005-06-10 2011-03-09 旭化成ケミカルズ株式会社 多孔性成形体およびその製造方法
US7510691B2 (en) * 2006-02-28 2009-03-31 Isoray Medical, Inc. Method for improving the recovery of cesium-131 from barium carbonate
US20090065416A1 (en) * 2006-03-13 2009-03-12 Agilent Technologies, Inc. Elastic porous column material
US8129517B1 (en) 2006-05-23 2012-03-06 Integrated Dna Technologies, Inc. Labeled solid supports for organic synthesis
EP1916522A1 (de) * 2006-10-25 2008-04-30 Agilent Technologies, Inc. Säule mit getrennten Abschnitten stationärer Phase
CN103221550B (zh) * 2010-12-06 2018-05-11 3M创新有限公司 微生物浓集方法和装置
WO2012078374A2 (en) * 2010-12-06 2012-06-14 3M Innovative Properties Company Microorganism concentration process and device
EP2532411A1 (de) 2011-06-10 2012-12-12 Süd-Chemie AG Druckwechseladsorptionsverfahren
EP2532421A1 (de) * 2011-06-10 2012-12-12 Süd-Chemie AG Verbundmaterial aus fluorhaltigem Polymer, hydrophoben Zeolith-Partikeln und metallischem Werkstoff
CN102358046A (zh) * 2011-08-18 2012-02-22 宁波昌祺氟塑料制品有限公司 一种聚四氟乙烯膜的生产工艺
CN105536384B (zh) * 2012-04-20 2017-09-19 大金工业株式会社 空气过滤器用滤材、空气过滤器单元及多孔膜的制造方法
CN103219086A (zh) * 2012-08-02 2013-07-24 上海市凌桥环保设备厂有限公司 通信电缆用聚四氟乙烯微孔膜
EP2719445A1 (de) * 2012-10-09 2014-04-16 Clariant International Ltd. Prozess zur Konzentration kleiner organischer Moleküle von flüssigen oder gasförmigen Gemischen unter Verwendung einer Membran mit Fluorpolymer- und hydrophoben Kieselpartikeln
US9236620B2 (en) 2012-11-05 2016-01-12 Battelle Memorial Institute Composite separators and redox flow batteries based on porous separators
GB2551310B8 (en) 2016-05-24 2020-01-22 Thomas Billet Colin A gas treatment element and a method of forming a gas treatment element
WO2019097446A1 (en) * 2017-11-16 2019-05-23 3M Innovative Properties Company Polymer matrix composites comprising functional particles and methods of making the same
US11732104B2 (en) 2017-11-16 2023-08-22 3M Innovative Properties Company Polymer matrix composites comprising dielectric particles and methods of making the same
CN111364253B (zh) * 2020-03-16 2021-03-09 中国科学院兰州化学物理研究所 一种自润滑衬垫织物及其制备方法、一种自润滑衬垫复合材料
JP2024509561A (ja) * 2021-03-05 2024-03-04 ダブリュ．エル．ゴア アンド アソシエイツ，インコーポレイティド 固体が保持されたポリマー複合体物品及び形成方法

Family Cites Families (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL233523A (de) * 1957-12-10 1900-01-01
US3315020A (en) * 1962-03-21 1967-04-18 Gore & Ass Process for preparing biaxially fibrillated sheets
GB1049328A (en) * 1962-07-13 1966-11-23 Du Pont Porous structures of polytetrafluoroethylene resins
US3383092A (en) * 1963-09-06 1968-05-14 Garrett Corp Gas turbine with pulsating gas flows
US3281511A (en) * 1964-05-15 1966-10-25 Gen Plastics Corp Method of preparing microporous tetrafluoroethylene resin sheets
US3407096A (en) * 1966-01-25 1968-10-22 American Cyanamid Co Fuel cell and method for preparing the electrodes
US3533930A (en) * 1966-11-21 1970-10-13 Gen Electric Modified crosslinked polyoxymethylenes and their preparation
CA980038A (en) * 1969-04-23 1975-12-16 Dexter Worden Flexible, non-woven compositions and process for producing same
US4194040A (en) * 1969-04-23 1980-03-18 Joseph A. Teti, Jr. Article of fibrillated polytetrafluoroethylene containing high volumes of particulate material and methods of making and using same
US4153661A (en) * 1977-08-25 1979-05-08 Minnesota Mining And Manufacturing Company Method of making polytetrafluoroethylene composite sheet
US4373519A (en) * 1981-06-26 1983-02-15 Minnesota Mining And Manufacturing Company Composite wound dressing
US4565663A (en) * 1981-06-26 1986-01-21 Minnesota Mining And Manufacturing Company Method for making water-swellable composite sheet
US4460642A (en) * 1981-06-26 1984-07-17 Minnesota Mining And Manufacturing Company Water-swellable composite sheet of microfibers of PTFE and hydrophilic absorptive particles
US4871671A (en) * 1985-04-29 1989-10-03 Minnesota Mining And Manufacturing Company Immobilization of biological cells in polytetrafluoroethylene matrix
US4722898A (en) * 1985-04-29 1988-02-02 Minnesota Mining And Manufacturing Company Immobilization of biological cells in polytetrafluoroethylene matrix
US4863604A (en) * 1987-02-05 1989-09-05 Parker-Hannifin Corporation Microporous asymmetric polyfluorocarbon membranes
US4906378A (en) * 1987-12-28 1990-03-06 Minnesota Mining And Manufacturing Company Composite chromatographic article
US4971736A (en) * 1987-12-28 1990-11-20 Minnesota Mining And Manufacturing Company Method of preparing composite chromatographic article
US4810381A (en) * 1987-12-28 1989-03-07 Minnesota Mining And Manufacturing Company Composite chromatographic article
US4882113A (en) * 1989-01-26 1989-11-21 Baxter International Inc. Heterogeneous elastomeric compositions containing a fluoroelastomer and PTFE and methods for manufacturing said compositions
US4971697A (en) * 1989-02-23 1990-11-20 Minnesota Mining And Manufacturing Company Thin silica flakes and method of making

Also Published As

Publication number Publication date
EP0443853A3 (en) 1991-10-23
DK0443853T3 (da) 1993-11-22
AU636703B2 (en) 1993-05-06
EP0443853B1 (de) 1993-08-04
JP2716879B2 (ja) 1998-02-18
ES2043431T3 (es) 1993-12-16
MX166623B (es) 1993-01-22
HU910295D0 (en) 1991-08-28
US5071610A (en) 1991-12-10
CA2035295A1 (en) 1991-08-24
DE69100213D1 (de) 1993-09-09
CS44691A2 (en) 1991-09-15
CN1054256A (zh) 1991-09-04
AU7028291A (en) 1991-08-29
JPH0623266A (ja) 1994-02-01
BR9100726A (pt) 1991-10-29
KR910021429A (ko) 1991-12-20
EP0443853A2 (de) 1991-08-28
HUT60311A (en) 1992-08-28

Similar Documents

Publication Publication Date Title
DE69100213T2 (de) Kompositartikel aus Polytetrafluorethylen mit kontrollierten Poren und dessen Herstellungsmethode.
DE69028839D1 (de) Rohrförmiger kompositgegenstand und dessen herstellungsverfahren
DE69002088D1 (de) Textil-schichtstoff aus faserbahnen mit verschiedenen eigenschaften und dessen verfahren zur herstellung.
DE69123691D1 (de) In der form etikettierter behälter und dessen herstellung
DE69231641T2 (de) Geformter Mehrschicht-Gegenstand und Verfahren zur dessen Herstellung
DE69217492D1 (de) Verbundartikel mit orientierten Mikrostrukturen und Verfahren zu dessen Herstellung
DE69106840T2 (de) Gesinterter Körper, Sorbentmittel, und dessen Herstellungsverfahren.
DE69223065D1 (de) Oberflächenmodifiziertes, poröses expandiertes polytetrafluoroäthylen und verfahren zur herstellung desselben
DE69409706D1 (de) Absorbierender Artikel und dessen Herstellungsmethode
DE68919996T2 (de) Katheter mit ausdehnbarem Element und dessen Herstellungsverfahren.
DE68901883T2 (de) Verfahren zur herstellung im mikrosphaerischen gesinterten koerpern aus hydroxyapatit und chromatographisches packungsmaterial, bestehend aus mikrosphaerischen gesinterten koerpern aus hydroxyapatit.
DE69124410T2 (de) Kompositschicht, Glaskompositmaterial und Verfahren zu seiner Herstellung
DE69102227T2 (de) Chromatographisches packungsmaterial und dessen herstellung.
ITTO920686A0 (it) Procedimento per la realizzazione di protesi tessili, ad esempio protesi vascolari, e protesi tessile ottenibile con tale procedimento
GB2249546B (en) Sintered ceramic-metal composite product and method of fabricating the same
DE3686139D1 (de) Rohrverbindungsstueck aus verbundmaterial und herstellungsverfahren dafuer.
KR900008192A (ko) 중공 복합 부재 및 그 제조 방법
FR2718673B1 (fr) Article composite et procédé de fabrication de celui-ci.
DE69109675T2 (de) Geflechte und dessen herstellungsverfahren.
DE69017326T2 (de) Poröses Material aus Polytetrafluorethylen und Verfahren zur Herstellung.
DE69123415T2 (de) Supraleitendes Bauelement mit verringerter Dicke der supraleitenden Oxydschicht und dessen Herstellungsverfahren
DE69113010D1 (de) Artikel mit supraleiter/isolator Lagenstruktur und Verfahren zur Herstellung des Artikels.
DE69418555D1 (de) Ultrafeine Verbundteilchen aus Nitriden, Herstellungsverfahren und daraus gesinterter Gegenstand
DE69024430T2 (de) Verbundfilm und dessen Herstellungsverfahren
MX9101803A (es) Articulos extruidos huecos de diametro variable y metodo de fabricacion

Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee