DE69019694T2 - Verfahren zur Herstellung einer mehrschichtigen porösen Membran aus Polytetrafluoräthylen. - Google Patents
Verfahren zur Herstellung einer mehrschichtigen porösen Membran aus Polytetrafluoräthylen.Info
- Publication number
- DE69019694T2 DE69019694T2 DE69019694T DE69019694T DE69019694T2 DE 69019694 T2 DE69019694 T2 DE 69019694T2 DE 69019694 T DE69019694 T DE 69019694T DE 69019694 T DE69019694 T DE 69019694T DE 69019694 T2 DE69019694 T2 DE 69019694T2
- Authority
- DE
- Germany
- Prior art keywords
- polytetrafluoroethylene
- producing
- porous membrane
- membrane made
- multilayer porous
- 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
Links
- 239000012528 membrane Substances 0.000 title 1
- -1 polytetrafluoroethylene Polymers 0.000 title 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 title 1
- 239000004810 polytetrafluoroethylene Substances 0.000 title 1
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
- 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
- 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
- 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
- B01D69/1212—Coextruded layers
-
- 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
- B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
- B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
- B29C55/023—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets using multilayered plates or sheets
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
-
- 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
-
- 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. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1320273A JPH078926B2 (ja) | 1989-12-07 | 1989-12-07 | ポリテトラフルオロエチレン複層多孔膜の製造方法 |
Publications (2)
Publication Number | Publication Date |
---|---|
DE69019694D1 DE69019694D1 (de) | 1995-06-29 |
DE69019694T2 true DE69019694T2 (de) | 1995-09-21 |
Family
ID=18119663
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE69019694T Expired - Fee Related DE69019694T2 (de) | 1989-12-07 | 1990-12-06 | Verfahren zur Herstellung einer mehrschichtigen porösen Membran aus Polytetrafluoräthylen. |
Country Status (12)
Country | Link |
---|---|
US (1) | US5064593A (de) |
EP (1) | EP0433787B1 (de) |
JP (1) | JPH078926B2 (de) |
KR (1) | KR0150640B1 (de) |
CN (1) | CN1030690C (de) |
AU (1) | AU623068B2 (de) |
BR (1) | BR9006236A (de) |
CA (1) | CA2031827C (de) |
DE (1) | DE69019694T2 (de) |
ES (1) | ES2075123T3 (de) |
PL (1) | PL165872B1 (de) |
RU (1) | RU2045328C1 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10061936A1 (de) * | 2000-12-13 | 2002-07-04 | Valentin Kramer | Gegenstand aus ePTFE und Verfahren zum Herstellen desselben |
Families Citing this family (78)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5225131A (en) * | 1989-12-07 | 1993-07-06 | Daikin Industries, Ltd. | Process for producing multilayer polytetrafluoroethylene porous membrane and semisintered polytetrafluoroethylene multilayer structure |
JP3116410B2 (ja) * | 1991-04-11 | 2000-12-11 | 住友電気工業株式会社 | 着色ポリテトラフルオロエチレン多孔質体の製造方法 |
US5217666A (en) * | 1991-05-29 | 1993-06-08 | Daikin Industries Ltd. | Process for producing porous polytetrafluoroethylene film |
ES2038556B1 (es) * | 1991-12-23 | 1994-02-16 | Univ Cantabria | Proceso de tratamiento biologico de aguas residuales basado en una biopelicula desarrollada sobre un soporte permeable a gases. |
ES2133393T3 (es) * | 1992-03-13 | 1999-09-16 | Atrium Medical Corp | Productos de fluoropolimeros (por ejemplo, politetrafluoroetileno) expandidos de porosidad controlada y su fabricacion. |
WO1994003531A1 (en) * | 1992-07-30 | 1994-02-17 | Daikin Industries, Ltd. | Porous polytetrafluoroethylene material and process for producing the same |
US5453235A (en) * | 1993-01-29 | 1995-09-26 | Impra, Inc. | Method of forming dual porosity FTFE tubes by extrusion of concentric preforms |
DE4308368C2 (de) * | 1993-03-16 | 1997-05-22 | Gore & Ass | Poröses Polytetrafluorethylen (PTFE) sowie ein Verfahren zu seiner Herstellung |
US5399307A (en) * | 1993-06-18 | 1995-03-21 | Dalton; Robert E. | Methods of compression molding two or more polytetrafluoroethylene resin layers |
AT399507B (de) * | 1993-07-30 | 1995-05-26 | Chemiefaser Lenzing Ag | Bikomponentenformkörper aus polytetrafluorethylen (ptfe) und verfahren zu seiner herstellung |
US5393929A (en) * | 1993-11-23 | 1995-02-28 | Junkosha Co. Ltd. | Electrical insulation and articles thereof |
JP3003500B2 (ja) * | 1994-04-28 | 2000-01-31 | ダイキン工業株式会社 | ポリテトラフルオロエチレン複合多孔膜 |
CN1082103C (zh) * | 1994-06-30 | 2002-04-03 | 大金工业株式会社 | 膨松聚四氟乙烯长纤维及裂膜丝、其制造方法、使用其制造棉状物的方法及集尘用滤布 |
DE69521709T2 (de) * | 1994-09-23 | 2002-04-25 | Impra Inc | Kohlenstoffhaltiges gefässtransplantat und herstellungsverfahren |
DE19544912A1 (de) | 1995-12-01 | 1997-06-05 | Gore W L & Ass Gmbh | PTFE-Körper aus mikroporösem Polytetrafluorethylen mit Füllstoff und Verfahren zu dessen Herstellung |
US6428571B1 (en) * | 1996-01-22 | 2002-08-06 | Scimed Life Systems, Inc. | Self-sealing PTFE vascular graft and manufacturing methods |
US5800512A (en) * | 1996-01-22 | 1998-09-01 | Meadox Medicals, Inc. | PTFE vascular graft |
TW438679B (en) * | 1996-08-09 | 2001-06-07 | Daikin Ind Ltd | Filter medium and air filter unit using the same |
DE19638416C1 (de) * | 1996-09-19 | 1997-11-13 | Gore W L & Ass Gmbh | Formkörper aus einem Blend eines Fluorpolymeren und eines Thermoplasten und Verfahren zu dessen Herstellung |
US6010529A (en) | 1996-12-03 | 2000-01-04 | Atrium Medical Corporation | Expandable shielded vessel support |
US5925074A (en) * | 1996-12-03 | 1999-07-20 | Atrium Medical Corporation | Vascular endoprosthesis and method |
JP2000079332A (ja) | 1998-07-08 | 2000-03-21 | Nitto Denko Corp | エアフィルタ用ろ材 |
US6517571B1 (en) | 1999-01-22 | 2003-02-11 | Gore Enterprise Holdings, Inc. | Vascular graft with improved flow surfaces |
US6342294B1 (en) * | 1999-08-12 | 2002-01-29 | Bruce G. Ruefer | Composite PTFE article and method of manufacture |
US6454744B1 (en) * | 1999-12-23 | 2002-09-24 | Tfx Medical, Inc. | Peelable PTFE sheaths and methods for manufacture of same |
US6923927B2 (en) * | 2000-10-03 | 2005-08-02 | Atrium Medical Corporation | Method for forming expandable polymers having drugs or agents included therewith |
US6616876B1 (en) * | 2000-10-03 | 2003-09-09 | Atrium Medical Corporation | Method for treating expandable polymer materials |
CN100422741C (zh) * | 2003-03-27 | 2008-10-01 | 泰尔茂株式会社 | 试纸和多孔膜 |
US20050269734A1 (en) * | 2004-06-03 | 2005-12-08 | Coltec Industrial Products Llc | Multifunction multilayer PTFE tape and method of manufacture |
US8029563B2 (en) | 2004-11-29 | 2011-10-04 | Gore Enterprise Holdings, Inc. | Implantable devices with reduced needle puncture site leakage |
WO2006069307A2 (en) * | 2004-12-22 | 2006-06-29 | Entegris, Inc. | Multilayer porous membrane and process of manufacture |
EP1913795B1 (de) * | 2005-08-03 | 2019-05-01 | Donaldson Company, Inc. | Mikroporöse membran für flashdestillation |
BRPI0814905A2 (pt) * | 2007-08-24 | 2015-02-03 | Vito | Método de fabricação de uma membrana polimérica com enchimento, membrana polimérica com enchimento, aparelho para separação de uma mistura de componentes por pervaporação, aparelho para separação de uma mistura de componentes por nanofiltração e utilização de uma membrana polimérica com enchimento |
JP5220369B2 (ja) | 2007-09-04 | 2013-06-26 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
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 |
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 |
JP2009197147A (ja) * | 2008-02-22 | 2009-09-03 | Kurabe Ind Co Ltd | 微細層構造を有するptfe多孔体及びその製造方法 |
JP5658860B2 (ja) * | 2008-05-12 | 2015-01-28 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに濾材 |
US8075675B2 (en) * | 2008-06-12 | 2011-12-13 | Serveron Corporation | Apparatus and method for extracting gas from liquid |
US20100086767A1 (en) * | 2008-10-06 | 2010-04-08 | General Electric Company | Processes For Producing Multilayer Polytetrafluoroethylene Articles And Articles Formed Therefrom |
JP4944864B2 (ja) * | 2008-11-04 | 2012-06-06 | 日東電工株式会社 | ポリテトラフルオロエチレン多孔質膜およびその製造方法ならびに防水通気フィルタ |
CN102049886A (zh) * | 2009-10-28 | 2011-05-11 | 上海金由氟材料有限公司 | 密封用聚四氟乙烯薄材 |
US8673440B2 (en) * | 2009-10-30 | 2014-03-18 | Bha Altair, Llc | Porous membrane |
UA97530C2 (ru) * | 2010-01-12 | 2012-02-27 | Александр Анатолиевич Осадчий | Полимерная диффузионная мембрана "форспласт-софт" |
JP5470140B2 (ja) | 2010-03-31 | 2014-04-16 | 富士フイルム株式会社 | 結晶性ポリマー微孔性膜及び濾過用フィルター |
US9944044B2 (en) | 2010-05-06 | 2018-04-17 | W. L. Gore & Associates, Inc. | Contamination resistant air permeable fabric laminate and garments made therefrom |
JP2012011369A (ja) | 2010-06-01 | 2012-01-19 | Fujifilm Corp | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
CN102274694B (zh) * | 2010-06-08 | 2013-08-07 | 吕晓龙 | 一种聚四氟乙烯分离膜制备方法 |
CN103270108B (zh) * | 2010-12-21 | 2016-04-20 | 大金工业株式会社 | 拉伸材料 |
JP2012176361A (ja) * | 2011-02-25 | 2012-09-13 | Sumitomo Electric Fine Polymer Inc | 多孔質複層フィルター |
JP2012206113A (ja) * | 2011-03-16 | 2012-10-25 | Fujifilm Corp | 結晶性ポリマー微孔性膜及びその製造方法、並びに濾過用フィルタ |
KR20140056233A (ko) * | 2011-07-05 | 2014-05-09 | 닛토덴코 가부시키가이샤 | 폴리테트라플루오로에틸렌 다공질막의 제조 방법 |
CN103842059B (zh) * | 2011-09-23 | 2016-08-31 | W.L.戈尔及同仁股份有限公司 | 表面改性的含氟聚合物膜及其生产方法 |
CN103987449B (zh) * | 2011-12-05 | 2016-03-02 | 住友电工超效能高分子股份有限公司 | 聚四氟乙烯多孔膜、聚四氟乙烯多孔膜复合体、以及分离膜元件 |
CN102626990A (zh) * | 2012-04-24 | 2012-08-08 | 江苏新氟隆塑胶有限公司 | Ptfe盘根拉伸成型设备系统及生产工艺 |
US10808054B2 (en) * | 2012-10-10 | 2020-10-20 | Atrium Medical Corporation | Self-bonding fluoropolymers and methods of producing the same |
CN102961976B (zh) * | 2012-12-14 | 2015-09-23 | 国家海洋局天津海水淡化与综合利用研究所 | 聚四氟乙烯中空纤维多孔膜及其制备方法 |
US9573339B2 (en) | 2013-01-18 | 2017-02-21 | W. L. Gore & Associates, Inc. | Low gloss, air permeable, abrasion resistant, printable laminate containing an asymmetric membrane and articles made therefrom |
CN103386256B (zh) * | 2013-06-21 | 2015-03-25 | 浙江理工大学 | 微孔型聚四氟乙烯杂化平板膜包缠法制备中空纤维膜和管式膜的方法 |
KR101433774B1 (ko) * | 2013-10-04 | 2014-08-27 | 한국생산기술연구원 | 3중층으로 구성된 먼지포집용 여과체 |
US9814560B2 (en) | 2013-12-05 | 2017-11-14 | W. L. Gore & Associates, Inc. | Tapered implantable device and methods for making such devices |
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 |
CN105983352B (zh) * | 2015-02-16 | 2018-05-15 | 上海灵氟隆新材料科技有限公司 | 一种高通量厚型聚四氟乙烯膜及其制备方法 |
JP5833263B1 (ja) * | 2015-02-24 | 2015-12-16 | 株式会社サンケイ技研 | ポリテトラフルオロエチレン多孔質シートの製造方法 |
CN107666882B (zh) | 2015-06-05 | 2020-01-10 | W.L.戈尔及同仁股份有限公司 | 带有渐缩部的低渗血量可植入假体 |
FR3052718B1 (fr) * | 2016-06-16 | 2019-08-09 | Faurecia Automotive Industrie | Procede de fabrication d'une piece d'equipement automobile et piece associee |
CN106364120B (zh) * | 2016-08-30 | 2018-09-14 | 上海索康医用材料有限公司 | 一种纯膨体聚四氟乙烯片材的制备方法 |
JP7055973B2 (ja) * | 2016-12-09 | 2022-04-19 | スリーエム イノベイティブ プロパティズ カンパニー | ポリマー多層フィルム |
WO2018220866A1 (ja) * | 2017-06-01 | 2018-12-06 | Hoya株式会社 | 単回使用内視鏡装置 |
JP2019192749A (ja) * | 2018-04-24 | 2019-10-31 | 日本ゴア株式会社 | 電子部品用ポリテトラフルオロエチレン膜 |
KR102218062B1 (ko) | 2018-10-18 | 2021-02-19 | 주식회사 엘지화학 | 불소계 수지 다공성 막 및 이의 제조방법 |
JP6661098B1 (ja) * | 2019-01-28 | 2020-03-11 | 有限会社ヤマカツラボ | 積層ポリテトラフルオロエチレン多孔膜及びその製法 |
CN112044278A (zh) * | 2020-09-14 | 2020-12-08 | 浙江格尔泰斯环保特材科技股份有限公司 | 一种具有多层结构的ptfe微孔膜的制备方法 |
CN113368695B (zh) * | 2021-06-10 | 2023-01-20 | 盐城海普润科技股份有限公司 | 有机复合管式膜及其制备方法和应用 |
CN113844141B (zh) * | 2021-09-23 | 2023-09-15 | 上海索康医用材料有限公司 | 一种膨体聚四氟乙烯外科隔离膜及其制作工艺 |
JP2023061322A (ja) * | 2021-10-19 | 2023-05-01 | 株式会社オートネットワーク技術研究所 | 導体被覆材料、電線、及び導体被覆材料の製造方法 |
CN114181481B (zh) * | 2021-11-23 | 2023-05-16 | 山东东岳高分子材料有限公司 | 一种用于制备多层ptfe复合膨体板材料的筛选方法、应用、膨体板及其制备方法 |
Family Cites Families (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4096227A (en) * | 1973-07-03 | 1978-06-20 | W. L. Gore & Associates, Inc. | Process for producing filled porous PTFE products |
US4082893A (en) * | 1975-12-24 | 1978-04-04 | Sumitomo Electric Industries, Ltd. | Porous polytetrafluoroethylene tubings and process of producing them |
US4208745A (en) * | 1976-01-21 | 1980-06-24 | Sumitomo Electric Industries, Ltd. | Vascular prostheses composed of polytetrafluoroethylene and process for their production |
JPS603842B2 (ja) * | 1976-09-03 | 1985-01-31 | 住友電気工業株式会社 | 非対称孔径薄膜材料とその製造方法 |
US4385093A (en) * | 1980-11-06 | 1983-05-24 | W. L. Gore & Associates, Inc. | Multi-component, highly porous, high strength PTFE article and method for manufacturing same |
US4596837A (en) * | 1982-02-22 | 1986-06-24 | Daikin Industries Ltd. | Semisintered polytetrafluoroethylene article and production thereof |
US4478898A (en) * | 1982-06-04 | 1984-10-23 | Junkosha Co., Ltd. | Laminated porous polytetrafluoroethylene tube and its process of manufacture |
JPS6116840A (ja) * | 1984-07-04 | 1986-01-24 | Nippon Valqua Ind Ltd | ポリテトラフルオロエチレン製多孔質膜の製造方法 |
US4816339A (en) * | 1987-04-28 | 1989-03-28 | Baxter International Inc. | Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation |
US4961891A (en) * | 1988-10-04 | 1990-10-09 | Garlock, Inc. | Method of making high compressibility gasket material |
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 |
RU2124391C1 (ru) * | 1989-12-07 | 1999-01-10 | Дайкин Индастриз, Лтд. | Способ получения многослойной политетрафторэтиленовой пористой мембраны и полуспеченная политетрафторэтиленовая многослойная структура |
-
1989
- 1989-12-07 JP JP1320273A patent/JPH078926B2/ja not_active Expired - Fee Related
-
1990
- 1990-12-06 PL PL90288123A patent/PL165872B1/pl unknown
- 1990-12-06 ES ES90123478T patent/ES2075123T3/es not_active Expired - Lifetime
- 1990-12-06 EP EP90123478A patent/EP0433787B1/de not_active Expired - Lifetime
- 1990-12-06 DE DE69019694T patent/DE69019694T2/de not_active Expired - Fee Related
- 1990-12-06 US US07/622,899 patent/US5064593A/en not_active Expired - Lifetime
- 1990-12-06 RU SU904894073A patent/RU2045328C1/ru active
- 1990-12-06 AU AU67846/90A patent/AU623068B2/en not_active Ceased
- 1990-12-07 KR KR1019900020071A patent/KR0150640B1/ko not_active IP Right Cessation
- 1990-12-07 CA CA002031827A patent/CA2031827C/en not_active Expired - Lifetime
- 1990-12-07 CN CN90109725A patent/CN1030690C/zh not_active Expired - Fee Related
- 1990-12-07 BR BR909006236A patent/BR9006236A/pt unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE10061936A1 (de) * | 2000-12-13 | 2002-07-04 | Valentin Kramer | Gegenstand aus ePTFE und Verfahren zum Herstellen desselben |
Also Published As
Publication number | Publication date |
---|---|
CN1030690C (zh) | 1996-01-17 |
RU2045328C1 (ru) | 1995-10-10 |
JPH078926B2 (ja) | 1995-02-01 |
CN1052434A (zh) | 1991-06-26 |
CA2031827C (en) | 2002-09-03 |
PL288123A1 (en) | 1991-08-12 |
US5064593A (en) | 1991-11-12 |
KR910011458A (ko) | 1991-08-07 |
BR9006236A (pt) | 1991-09-24 |
KR0150640B1 (ko) | 1998-10-01 |
CA2031827A1 (en) | 1991-06-08 |
ES2075123T3 (es) | 1995-10-01 |
PL165872B1 (pl) | 1995-02-28 |
EP0433787B1 (de) | 1995-05-24 |
JPH03179038A (ja) | 1991-08-05 |
EP0433787A1 (de) | 1991-06-26 |
AU623068B2 (en) | 1992-04-30 |
AU6784690A (en) | 1991-06-13 |
DE69019694D1 (de) | 1995-06-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE69019694D1 (de) | Verfahren zur Herstellung einer mehrschichtigen porösen Membran aus Polytetrafluoräthylen. | |
DE3681302D1 (de) | Verfahren zur herstellung einer hydrophilen poroesen membran. | |
DE69216914T2 (de) | Verfahren zur Herstellung einer porösen Polytetrafluoroethylenfolie | |
DE68921044T2 (de) | Verfahren zur Herstellung einer porösen Polytetrafluorethylenfolie. | |
DE69111297D1 (de) | Verfahren zur Herstellung einer akustichen Membran. | |
DE69530468D1 (de) | Verfahren zur Herstellung einer hochdurchlässigen zusammengesetzten Umkehrosmosemembran | |
ATE55920T1 (de) | Verfahren zur herstellung einer komposit-membran. | |
DE3482704D1 (de) | Verfahren zur herstellung einer integralasymmetrischen membran. | |
DE3586677T2 (de) | Verfahren zur herstellung eines semipermeablen hohlfaser-membranelementes und ein semipermeabeles hohlfaser-membranelement. | |
DE3886822T2 (de) | Verfahren zur Herstellung von hochdurchlässigen zusammengesetzten beschichteten Hohlfasermembranen. | |
DE68908777D1 (de) | Verfahren zur Herstellung einer Hohlfasermembran. | |
DE3680755D1 (de) | Verfahren zur herstellung einer poroesen membran. | |
DE69010266T2 (de) | Verfahren zur Herstellung einer leitenden porigen keramischen Röhre. | |
DE69707359D1 (de) | Verfahren zur Herstellung einer keramischen Membranstruktur | |
DE69013615T2 (de) | Verfahren zur Herstellung einer porösen Rollenanordnung. | |
DE68907093T2 (de) | Verfahren zur Herstellung nicht poröser Membranschichten. | |
DE3764541D1 (de) | Verfahren zur herstellung von poroesen membranen. | |
DE69232938D1 (de) | Verfahren zur Herstellung einer einheitlichen, mikroporösen hydrophilen Polyvinylidendifluorid-Membran | |
AT381237B (de) | Verfahren zur herstellung einer membran, insbesondere zur plasmaphorese | |
DE69124024T2 (de) | Verfahren zur Herstellung einer akustischen Membran | |
DE69301405D1 (de) | Verfahren zur Herstellung einer drei-dimensionalen Membrane | |
DE69017245D1 (de) | Verfahren zur Herstellung einer Verbundstruktur. | |
DE69029342T2 (de) | Verfahren zur Herstellung einer akustischen Membran | |
DE766995T1 (de) | Verfahren zur Herstellung einer keramischen Membran | |
AT379318B (de) | Verfahren zur herstellung bzw. regenerierung einer siliconpolymer-membran |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |