GB1590275A - Microporous tubes and process for producing the same - Google Patents

Microporous tubes and process for producing the same Download PDF

Info

Publication number
GB1590275A
GB1590275A GB37394/77A GB3739477A GB1590275A GB 1590275 A GB1590275 A GB 1590275A GB 37394/77 A GB37394/77 A GB 37394/77A GB 3739477 A GB3739477 A GB 3739477A GB 1590275 A GB1590275 A GB 1590275A
Authority
GB
United Kingdom
Prior art keywords
tube
porosity
microporous
polytetrafluoroethylene
plug
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
Application number
GB37394/77A
Other languages
English (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.)
Sumitomo Electric Industries Ltd
Original Assignee
Sumitomo Electric Industries 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 Sumitomo Electric Industries Ltd filed Critical Sumitomo Electric Industries Ltd
Publication of GB1590275A publication Critical patent/GB1590275A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D63/00—Apparatus in general for separation processes using semi-permeable membranes
    • B01D63/06—Tubular membrane modules
    • B01D63/061—Manufacturing thereof
    • 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
    • B01D69/04—Tubular membranes
    • B01D69/043—Tubular membranes characterised by the tube diameter
    • 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
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C55/30—Drawing through a die
    • 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
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0012—Combinations of extrusion moulding with other shaping operations combined with shaping by internal pressure generated in the material, e.g. foaming
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/04—Condition, form or state of moulded material or of the material to be shaped cellular or porous
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00—Tubular articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2031/00—Other particular articles
    • B29L2031/753—Medical equipment; Accessories therefor
    • B29L2031/7532—Artificial members, protheses
    • B29L2031/7534—Cardiovascular protheses
    • 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
    • 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
    • Y10S521/00—Synthetic resins or natural rubbers -- part of the class 520 series
    • Y10S521/919—Sintered product

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)
GB37394/77A 1976-09-13 1977-09-07 Microporous tubes and process for producing the same Expired GB1590275A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11053676A JPS5334868A (en) 1976-09-13 1976-09-13 Fine porous tube

Publications (1)

Publication Number Publication Date
GB1590275A true GB1590275A (en) 1981-05-28

Family

ID=14538290

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37394/77A Expired GB1590275A (en) 1976-09-13 1977-09-07 Microporous tubes and process for producing the same

Country Status (6)

Country Link
US (2) US4177334A (https=)
JP (1) JPS5334868A (https=)
CA (1) CA1099463A (https=)
DE (1) DE2740759C3 (https=)
FR (1) FR2364107A1 (https=)
GB (1) GB1590275A (https=)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6627277B1 (en) 1997-08-21 2003-09-30 Daikin Industries Ltd. Polytetrafluoroethylene tubing and extruder for the production thereof

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JPS5553534A (en) * 1978-10-12 1980-04-19 Sumitomo Electric Ind Ltd Method of fabricating sealing material
DE2947743C2 (de) * 1978-11-30 1983-12-08 Sumitomo Electric Industries, Ltd., Osaka Einheitliches, poröses röhrenförmiges Gebilde aus Polytetrafluoräthylen
SE429317B (sv) * 1980-05-29 1983-08-29 Plm Ab Sett att astadkomma ett element av polyetylentereftalat eller dermed liknande termoplastmaterial jemte anordning herfor
JPS58201823A (ja) * 1982-05-18 1983-11-24 Asahi Glass Co Ltd イオン交換膜の製造方法
CA1216721A (en) * 1982-08-23 1987-01-20 Norman R. Harlow Manufacture of low density sintered polytetrafluoroethylene insulated cable
US4482516A (en) * 1982-09-10 1984-11-13 W. L. Gore & Associates, Inc. Process for producing a high strength porous polytetrafluoroethylene product having a coarse microstructure
US4598011A (en) * 1982-09-10 1986-07-01 Bowman Jeffery B High strength porous polytetrafluoroethylene product having a coarse microstructure
FI77880C (fi) * 1982-09-10 1989-05-10 Gore & Ass Poroest material bestaoende vaesentligen av en ptfe-polymer.
DE3582744D1 (de) * 1984-03-30 1991-06-13 Nat Res Dev Rohrfoermige gegenstaende.
CA1277474C (en) * 1985-04-02 1990-12-11 Norman Ralph Harlow Manufacture of low density, sintered polytetrafluoroethylene articles
JPS63126724A (ja) * 1986-11-17 1988-05-30 Nippon Valqua Ind Ltd フツ素樹脂製ロツドの製造方法
US4892539A (en) * 1988-02-08 1990-01-09 D-R Medical Systems, Inc. Vascular graft
JPH026832A (ja) * 1988-06-24 1990-01-11 Daikin Ind Ltd 多孔質ポリテトラフルオロエチレン中空糸及びその製法
US4973609A (en) * 1988-11-17 1990-11-27 Memron, Inc. Porous fluoropolymer alloy and process of manufacture
EP0377067A1 (de) * 1989-01-05 1990-07-11 W.L. Gore & Associates GmbH Sperrvorrichtung für abgedichtete Gehäuse
US4999146A (en) * 1990-02-12 1991-03-12 Thermax Wire Corp. Process for manufacture of low density polytetrofluoroethylene insulated cable
JP2881939B2 (ja) * 1990-04-06 1999-04-12 住友電気工業株式会社 手術用縫合糸及びその製造方法
WO1993018214A1 (en) * 1992-03-13 1993-09-16 Atrium Medical Corporation Controlled porosity expanded polytetrafluoroethylene products and fabrication
US6025044A (en) * 1993-08-18 2000-02-15 W. L. Gore & Associates, Inc. Thin-wall polytetrafluoroethylene tube
EP0714345B1 (en) * 1993-08-18 2001-09-12 W.L. Gore & Associates, Inc. A thin-wall, seamless, porous polytetrafluoroethylene tube
US6159565A (en) * 1993-08-18 2000-12-12 W. L. Gore & Associates, Inc. Thin-wall intraluminal graft
US6027779A (en) * 1993-08-18 2000-02-22 W. L. Gore & Associates, Inc. Thin-wall polytetrafluoroethylene tube
FR2710286B1 (fr) * 1993-09-22 1995-12-08 Plastic Omnium Cie Corps creux en résine fluorée, procédé pour sa fabrication et presse à extruder pour la mise en Óoeuvre du procédé.
US5609624A (en) * 1993-10-08 1997-03-11 Impra, Inc. Reinforced vascular graft and method of making same
US5505887A (en) * 1994-03-10 1996-04-09 Meadox Medicals, Inc. Extrusion process for manufacturing PTFE products
US6530765B1 (en) 1994-03-10 2003-03-11 Meadox Medicals, Inc. Apparatus for manufacturing expanded polytetrafluoroethylene products
CA2189662C (en) 1994-05-06 2004-12-14 William M. Colone Radially expandable polytetrafluoroethylene
ES2199993T3 (es) * 1994-06-13 2004-03-01 Endomed, Inc. Injerto endovascular expansible y metodo para su formacion.
JPH10506021A (ja) * 1994-06-27 1998-06-16 エンドーム・インコーポレーテッド 半径方向に膨張可能なポリテトラフルオロエチレンおよびそれで成形した膨張可能な血管内ステント
SE523785C2 (sv) 1995-02-07 2004-05-18 Plastech Aps Metod och anordning för att framställa en rörformad behållare med tillslutningsorgan
EP0840577B1 (en) * 1995-07-07 2005-08-24 W.L. GORE & ASSOCIATES, INC. Interior liner for tubes, pipes and blood conduits
US5800512A (en) * 1996-01-22 1998-09-01 Meadox Medicals, Inc. PTFE vascular graft
US6428571B1 (en) 1996-01-22 2002-08-06 Scimed Life Systems, Inc. Self-sealing PTFE vascular graft and manufacturing methods
US6174473B1 (en) 1998-07-27 2001-01-16 E.I. Du Pont De Nemours And Company Paste extrusion method
JP2001513460A (ja) 1997-08-07 2001-09-04 イー・アイ・デュポン・ドウ・ヌムール・アンド・カンパニー ペースト押出方法
US6383427B2 (en) * 1997-12-24 2002-05-07 Asahi Glass Company, Ltd. Process for producing an electric double layer capacitor electrode
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US6923927B2 (en) * 2000-10-03 2005-08-02 Atrium Medical Corporation Method for forming expandable polymers having drugs or agents included therewith
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ATE406146T1 (de) * 2000-11-22 2008-09-15 Bard Peripheral Vascular Inc Verfahren zur herstellung einer röhrenförmigen struktur aus expandiertem polytetrafluorethylen mit mikrowand hoher dichte
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US7597775B2 (en) * 2001-10-30 2009-10-06 Boston Scientific Scimed, Inc. Green fluoropolymer tube and endovascular prosthesis formed using same
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US7789908B2 (en) * 2002-06-25 2010-09-07 Boston Scientific Scimed, Inc. Elastomerically impregnated ePTFE to enhance stretch and recovery properties for vascular grafts and coverings
US20050055085A1 (en) * 2003-09-04 2005-03-10 Rivron Nicolas C. Implantable medical devices having recesses
US7759120B2 (en) * 2005-03-02 2010-07-20 Kps Bay Medical, Inc. Seeding implantable medical devices with cells
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CN101193954B (zh) * 2005-05-12 2011-08-10 日东电工株式会社 聚四氟乙烯粒子凝集物的制造方法及聚四氟乙烯成形体的制造方法
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CN102905778B (zh) * 2010-03-04 2016-01-27 积水化学工业株式会社 高分子水处理膜及其制造方法以及水处理方法
CN101961609B (zh) * 2010-10-15 2013-02-06 浙江理工大学 一种聚四氟乙烯中空纤维拉伸装置
JP5960401B2 (ja) * 2011-09-02 2016-08-02 積水化学工業株式会社 水処理装置及び水処理方法
US9814560B2 (en) 2013-12-05 2017-11-14 W. L. Gore & Associates, Inc. Tapered implantable device and methods for making such devices
BR112017025950A2 (pt) 2015-06-05 2018-08-14 W. L. Gore & Associates, Inc. ?prótese implantável de baixo sangramento com um afunilador?

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6627277B1 (en) 1997-08-21 2003-09-30 Daikin Industries Ltd. Polytetrafluoroethylene tubing and extruder for the production thereof

Also Published As

Publication number Publication date
FR2364107B1 (https=) 1981-11-27
DE2740759B2 (de) 1978-11-30
US4177334A (en) 1979-12-04
FR2364107A1 (fr) 1978-04-07
US4250138A (en) 1981-02-10
CA1099463A (en) 1981-04-21
DE2740759C3 (de) 1979-07-26
JPS6154578B2 (https=) 1986-11-22
DE2740759A1 (de) 1978-03-30
JPS5334868A (en) 1978-03-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PE20 Patent expired after termination of 20 years

Effective date: 19970906