JPH11515036A - ポリテトラフルオロエチレンの高強度で空気透過性の膜 - Google Patents
ポリテトラフルオロエチレンの高強度で空気透過性の膜Info
- Publication number
- JPH11515036A JPH11515036A JP50854697A JP50854697A JPH11515036A JP H11515036 A JPH11515036 A JP H11515036A JP 50854697 A JP50854697 A JP 50854697A JP 50854697 A JP50854697 A JP 50854697A JP H11515036 A JPH11515036 A JP H11515036A
- Authority
- JP
- Japan
- Prior art keywords
- polytetrafluoroethylene
- article
- tape
- ptfe
- melting point
- 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.)
- Granted
Links
Classifications
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- 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—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
- B29C55/005—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. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (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)
Abstract
Description
Claims (1)
- 【特許請求の範囲】 1.フィブリルによって相互に接続された一連の結節から本質的になる内部微 細構造を有し、前記結節は、ほぼ平行に配列し、高度に細長く、25:1以上のア スペクト比を有する微細多孔質ポリテトラフルオロエチレン物品。 2.結節のアスペクト比が50:1以上である請求項1に記載の微細多孔質ポリ テトラフルオロエチレン物品。 3.その物品が、フレイジャー数(水柱0.5 インチの圧力差でサンプル1平方 フィートあたりの立方フィート/分)とボール破裂値(ポンド)の積が60以上で あるようなフレイジャー数の空気流れとボール破裂強度値を有する、請求項1に 記載の微細多孔質ポリテトラフルオロエチレン物品。 4.その物品がフレイジャー数(水柱0.5 インチの圧力差でサンプル1平方フ ィートあたりの立方フィート/分)とボール破裂値(ポンド)の積が100 以上で あるようなフレイジャー数の空気流れとボール破裂強度値を有する請求項1に記 載の微細多孔質ポリテトラフルオロエチレン物品。 5.結節のアスペクト比が150 を上回る請求項1に記載の微細多孔質ポリテト ラフルオロエチレン物品。 6.ポリテトラフルオロエチレン樹脂が、非類似のポリテトラフルオロエチレ ンポリマーの配合物である請求項1に記載の物品。 7.ポリテトラフルオロエチレン樹脂が、ポリテトラフルオロエチレンホモポ リマーと改質ポリテトラフルオロエチレンポリマーの配合物である請求項1に記 載の物品。 8.膜又はチューブの形状の請求項1に記載の微細多孔質ポリテトラフルオロ エチレン物品。 9.膜又はチューブの2つの表面の結節とフィブリルの微細構造が異なるとい った点で不均整である請求項8に記載の微細多孔質ポリテトラフルオロエチレン 物品。 10.フィラーを含む請求項1に記載のポリテトラフルオロエチレン物品。 11.5〜500ナノメートルの平均サイズのフィラー粒子を含む請求項1に記載 のポリテトラフルオロエチレン物品。 12.無機フィラーから選択されたフィラーを含む請求項1に記載のポリテトラ フルオロエチレン物品。 13.無機フィラーを含む請求項11に記載のポリテトラフルオロエチレン物品。 14.(a) 少なくとも1種のポリテトラフルオロエチレンのファインパウダー樹 脂を潤滑してペースト押出に供し、テープ押出物を作成し、 (b) 潤滑剤を除去し、 (c) 最も低い結晶融点のポリテトラフルオロエチレン成分の結晶融点を下 回る温度でその押出物を少なくとも一軸に伸長し、 (d) 最も高い結晶融点のポリテトラフルオロエチレン成分の結晶融点を上 回る温度までそのテープの温度を高めることによって、その伸長されたテープを アモルファス固定し、 (e) 最も高い結晶融点のポリテトラフルオロエチレン成分の結晶融点を上 回る温度で、少なくとも、最大の元の伸長方向に直角な方向に伸長する、 各工程を順次に含む多孔質ポリテトラフルオロエチレン物品の製造方法。
Applications Claiming Priority (9)
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 | |
DE60/001,893 | 1995-12-01 | ||
DE19544912.6 | 1995-12-01 | ||
DE60/003,487 | 1995-12-01 | ||
DE19544912A DE19544912A1 (de) | 1995-12-01 | 1995-12-01 | PTFE-Körper aus mikroporösem Polytetrafluorethylen mit Füllstoff und Verfahren zu dessen Herstellung |
DE60/008,143 | 1995-12-01 | ||
PCT/US1996/012619 WO1997006206A1 (en) | 1995-08-04 | 1996-08-02 | Strong, air permeable membranes of polytetrafluoroethylene |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH11515036A true JPH11515036A (ja) | 1999-12-21 |
JP3863183B2 JP3863183B2 (ja) | 2006-12-27 |
Family
ID=27438244
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP50854697A Expired - Lifetime JP3863183B2 (ja) | 1995-08-04 | 1996-08-02 | ポリテトラフルオロエチレンの高強度で空気透過性の膜 |
Country Status (8)
Country | Link |
---|---|
US (1) | US5814405A (ja) |
EP (1) | EP0850265B1 (ja) |
JP (1) | JP3863183B2 (ja) |
AU (1) | AU6687396A (ja) |
CA (1) | CA2233695C (ja) |
DE (1) | DE69617707T2 (ja) |
ES (1) | ES2164909T3 (ja) |
WO (1) | WO1997006206A1 (ja) |
Cited By (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP3866771B2 (ja) * | 1996-08-05 | 2007-01-10 | 帝人株式会社 | 配向フィルムの製造方法 |
JP2008521972A (ja) * | 2004-11-24 | 2008-06-26 | ドナルドソン カンパニー,インコーポレイティド | Ptfe膜 |
JP2010018800A (ja) * | 2008-07-08 | 2010-01-28 | Bha Group Inc | 延伸ptfe膜及び製造方法 |
EP2163297A1 (en) | 2008-09-02 | 2010-03-17 | Fujifilm Corporation | Crystalline polymer microporous membrane, method for producing the same, and filter for filtration |
JP2018019222A (ja) * | 2016-07-27 | 2018-02-01 | 日本ゴア株式会社 | 防水通音カバー、防水通音カバー部材および音響装置 |
JPWO2018117055A1 (ja) * | 2016-12-19 | 2019-10-24 | 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とこれを用いた防水通気膜及び防水通気部材 |
WO2021112197A1 (ja) * | 2019-12-05 | 2021-06-10 | 日東電工株式会社 | ポリテトラフルオロエチレン延伸多孔質膜とこれを用いた通気濾材及びフィルター部材 |
KR20220104724A (ko) | 2019-12-05 | 2022-07-26 | 닛토덴코 가부시키가이샤 | 폴리테트라플루오로에틸렌 연신 다공질막과 이것을 사용한 통기 여과재 및 필터 부재 |
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JPH0689165B2 (ja) * | 1990-01-29 | 1994-11-09 | ダイキン工業株式会社 | ポリテトラフルオロエチレン多孔膜およびその製造方法 |
US5217666A (en) * | 1991-05-29 | 1993-06-08 | Daikin Industries Ltd. | Process for producing porous polytetrafluoroethylene film |
EP0646151B1 (en) * | 1991-06-14 | 1997-11-05 | W.L. Gore & Associates, Inc. | Surface modified porous expanded polytetrafluoroethylene and process for making |
CA2074349C (en) * | 1991-07-23 | 2004-04-20 | Shinji Tamaru | Polytetrafluoroethylene porous film and preparation and use thereof |
CA2131902C (en) * | 1992-03-13 | 2004-08-03 | Paul Martakos | Controlled porosity expanded polytetrafluoroethylene products and fabrication |
JP3260890B2 (ja) * | 1993-03-02 | 2002-02-25 | 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法 |
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 |
US5552100A (en) * | 1995-05-02 | 1996-09-03 | Baxter International Inc. | Method for manufacturing porous fluoropolymer films |
-
1996
- 1996-08-01 US US08/690,924 patent/US5814405A/en not_active Expired - Lifetime
- 1996-08-02 DE DE1996617707 patent/DE69617707T2/de not_active Expired - Lifetime
- 1996-08-02 AU AU66873/96A patent/AU6687396A/en not_active Abandoned
- 1996-08-02 ES ES96926857T patent/ES2164909T3/es not_active Expired - Lifetime
- 1996-08-02 EP EP96926857A patent/EP0850265B1/en not_active Expired - Lifetime
- 1996-08-02 JP JP50854697A patent/JP3863183B2/ja not_active Expired - Lifetime
- 1996-08-02 WO PCT/US1996/012619 patent/WO1997006206A1/en active IP Right Grant
- 1996-08-02 CA CA 2233695 patent/CA2233695C/en not_active Expired - Lifetime
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JP3866771B2 (ja) * | 1996-08-05 | 2007-01-10 | 帝人株式会社 | 配向フィルムの製造方法 |
JP2008521972A (ja) * | 2004-11-24 | 2008-06-26 | ドナルドソン カンパニー,インコーポレイティド | Ptfe膜 |
JP2010018800A (ja) * | 2008-07-08 | 2010-01-28 | Bha Group Inc | 延伸ptfe膜及び製造方法 |
EP2163297A1 (en) | 2008-09-02 | 2010-03-17 | Fujifilm Corporation | Crystalline polymer microporous membrane, method for producing the same, and filter for filtration |
US8151998B2 (en) | 2008-09-02 | 2012-04-10 | Fujifilm Corporation | Crystalline polymer microporous membrane, method for producing the same, and filter for filtration |
JP2018019222A (ja) * | 2016-07-27 | 2018-02-01 | 日本ゴア株式会社 | 防水通音カバー、防水通音カバー部材および音響装置 |
JPWO2018117055A1 (ja) * | 2016-12-19 | 2019-10-24 | 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とこれを用いた防水通気膜及び防水通気部材 |
JPWO2018117056A1 (ja) * | 2016-12-19 | 2019-10-24 | 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とこれを用いた防水通気膜及び防水通気部材 |
WO2021112197A1 (ja) * | 2019-12-05 | 2021-06-10 | 日東電工株式会社 | ポリテトラフルオロエチレン延伸多孔質膜とこれを用いた通気濾材及びフィルター部材 |
KR20220104725A (ko) | 2019-12-05 | 2022-07-26 | 닛토덴코 가부시키가이샤 | 폴리테트라플루오로에틸렌 연신 다공질막과 이것을 사용한 통기 여과재 및 필터 부재 |
KR20220104724A (ko) | 2019-12-05 | 2022-07-26 | 닛토덴코 가부시키가이샤 | 폴리테트라플루오로에틸렌 연신 다공질막과 이것을 사용한 통기 여과재 및 필터 부재 |
DE112020005959T5 (de) | 2019-12-05 | 2022-09-22 | Nitto Denko Corporation | Gestreckte poröse polytetrafluorethylen-membran, luftdurchlässiges medium, bei dem diese verwendet wird, und filterelement, bei dem diese verwendet wird |
DE112020005956T5 (de) | 2019-12-05 | 2022-09-22 | Nitto Denko Corporation | Gestreckte poröse polytetrafluorethylen-membran, luftdurchlässiges medium, bei dem diese verwendet wird, und filterelement, bei dem diese verwendet wird |
Also Published As
Publication number | Publication date |
---|---|
US5814405A (en) | 1998-09-29 |
EP0850265B1 (en) | 2001-12-05 |
DE69617707T2 (de) | 2002-05-08 |
EP0850265A1 (en) | 1998-07-01 |
CA2233695A1 (en) | 1997-02-20 |
JP3863183B2 (ja) | 2006-12-27 |
ES2164909T3 (es) | 2002-03-01 |
DE69617707D1 (de) | 2002-01-17 |
WO1997006206A1 (en) | 1997-02-20 |
CA2233695C (en) | 2002-12-03 |
AU6687396A (en) | 1997-03-05 |
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