DE3582831D1 - Feine tetrafluorethylenpulverharze und ihre herstellung. - Google Patents

Feine tetrafluorethylenpulverharze und ihre herstellung.

Info

Publication number
DE3582831D1
DE3582831D1 DE8585304322T DE3582831T DE3582831D1 DE 3582831 D1 DE3582831 D1 DE 3582831D1 DE 8585304322 T DE8585304322 T DE 8585304322T DE 3582831 T DE3582831 T DE 3582831T DE 3582831 D1 DE3582831 D1 DE 3582831D1
Authority
DE
Germany
Prior art keywords
tetrafluorethylene
fine
production
powder resins
resins
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 - Lifetime
Application number
DE8585304322T
Other languages
English (en)
Inventor
Satish Chandra Malhotra
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.)
EIDP Inc
Original Assignee
EI Du Pont de Nemours and 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=24491679&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=DE3582831(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by EI Du Pont de Nemours and Co filed Critical EI Du Pont de Nemours and Co
Application granted granted Critical
Publication of DE3582831D1 publication Critical patent/DE3582831D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
    • C08F14/00—Homopolymers and 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
    • C08F14/18—Monomers containing fluorine
    • C08F14/26—Tetrafluoroethene
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31855—Of addition polymer from unsaturated monomers
    • Y10T428/31859—Next to an aldehyde or ketone condensation product
    • Y10T428/31862—Melamine-aldehyde
DE8585304322T 1984-06-18 1985-06-17 Feine tetrafluorethylenpulverharze und ihre herstellung. Expired - Lifetime DE3582831D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US06/621,798 US4576869A (en) 1984-06-18 1984-06-18 Tetrafluoroethylene fine powder and preparation thereof

Publications (1)

Publication Number Publication Date
DE3582831D1 true DE3582831D1 (de) 1991-06-20

Family

ID=24491679

Family Applications (1)

Application Number Title Priority Date Filing Date
DE8585304322T Expired - Lifetime DE3582831D1 (de) 1984-06-18 1985-06-17 Feine tetrafluorethylenpulverharze und ihre herstellung.

Country Status (5)

Country Link
US (1) US4576869A (de)
EP (1) EP0170382B1 (de)
JP (1) JP2560005B2 (de)
CA (1) CA1260200A (de)
DE (1) DE3582831D1 (de)

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BR9205929A (pt) * 1991-06-04 1994-09-27 Donaldson Co Inc Produtos de politetrafluoroetileno tratados com fluido e sua fabricação
DE4308368C2 (de) * 1993-03-16 1997-05-22 Gore & Ass Poröses Polytetrafluorethylen (PTFE) sowie ein Verfahren zu seiner Herstellung
DE4335705A1 (de) * 1993-10-20 1995-04-27 Hoechst Ag Herstellung eines modifizierten Polytetrafluorethylens und seine Verwendung
ES2216015T3 (es) 1994-05-06 2004-10-16 Bard Peripheral Vascular, Inc. Conjunto para el tratamiento de un vaso del cuerpo.
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
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US5955556A (en) * 1995-11-06 1999-09-21 Alliedsignal Inc. Method of manufacturing fluoropolymers
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US5756620A (en) * 1995-11-15 1998-05-26 E. I. Du Pont De Nemours And Company Tetrafluoroethylene polymer for improved paste extrusion
JP4080554B2 (ja) * 1995-12-06 2008-04-23 ダイキン工業株式会社 テトラフルオロエチレンの乳化重合方法
JP3271524B2 (ja) * 1996-08-12 2002-04-02 ダイキン工業株式会社 変性ポリテトラフルオロエチレンファインパウダー及びその製造方法
US6013795A (en) * 1996-11-04 2000-01-11 3M Innovative Properties Company Alpha-branched fluoroalkylcarbonyl fluorides and their derivatives
US6015838A (en) * 1996-11-04 2000-01-18 3M Innovative Properties Company Aqueous film-forming foam compositions
US5998521A (en) * 1996-11-04 1999-12-07 3M Innovative Properties Company Aqueous fluoropolymer compositions and method of preparing the same
US5965074A (en) * 1997-02-17 1999-10-12 E.I. Du Pont De Nemours And Company Continuous paste extrusion method
US6136933A (en) * 1998-11-13 2000-10-24 E. I. Du Pont De Nemours And Company Process for polymerizing tetrafluoroethylene
US6177533B1 (en) 1998-11-13 2001-01-23 E. I. Du Pont De Nemours And Company Polytetrafluoroethylene resin
US7049380B1 (en) * 1999-01-19 2006-05-23 Gore Enterprise Holdings, Inc. Thermoplastic copolymer of tetrafluoroethylene and perfluoromethyl vinyl ether and medical devices employing the copolymer
US6541589B1 (en) * 2001-10-15 2003-04-01 Gore Enterprise Holdings, Inc. Tetrafluoroethylene copolymer
US6911489B2 (en) * 2002-06-10 2005-06-28 Asahi Glass Fluoropolymers Usa, Inc. Methods for preparing agglomerated pellets of polytetrafluoroethylene and molded articles and the agglomerated pellets of polytetrafluoroethylene and molded articles prepared thereby
US20040024448A1 (en) 2002-08-05 2004-02-05 Chang James W. Thermoplastic fluoropolymer-coated medical devices
WO2005061567A1 (ja) * 2003-12-22 2005-07-07 Daikin Industries, Ltd. 非溶融加工性ポリテトラフルオロエチレン及びそのファインパウダー
US7531611B2 (en) * 2005-07-05 2009-05-12 Gore Enterprise Holdings, Inc. Copolymers of tetrafluoroethylene
EP2011804B1 (de) 2006-04-13 2013-01-16 Daikin Industries, Ltd. Tetrafluorethylen-polymer und wässrige dispersion davon
US7956112B2 (en) 2006-12-04 2011-06-07 E. I. Du Pont De Nemours And Company Aqueous fluoropolymer dispersion stabilized with amine oxide surfactant and process for making coagulated fluoropolymer resin
JP5581569B2 (ja) * 2007-02-16 2014-09-03 ダイキン工業株式会社 ポリテトラフルオロエチレンファインパウダー、ポリテトラフルオロエチレン製造方法
US9040646B2 (en) 2007-10-04 2015-05-26 W. L. Gore & Associates, Inc. Expandable TFE copolymers, methods of making, and porous, expanded articles thereof
US8637144B2 (en) * 2007-10-04 2014-01-28 W. L. Gore & Associates, Inc. Expandable TFE copolymers, method of making, and porous, expended 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
US20100036073A1 (en) * 2008-08-08 2010-02-11 E. I. Du Pont De Nemours And Company Non-Melt-Flowable Perfluoropolymer Comprising Repeating Units Arising From Tetrafluoroethylene and a Monomer Having a Functional Group and a Polymerizable Carbon-Carbon Double Bond
CN105218712B (zh) * 2009-03-30 2017-10-27 大金工业株式会社 一种聚四氟乙烯的制造方法
EP2415788B1 (de) * 2009-03-31 2014-04-30 Daikin Industries, Ltd. Polytetrafluorethylenpulver mit geringem molekulargewicht und zubereitungsverfahren dfür
WO2011055824A1 (ja) 2009-11-09 2011-05-12 旭硝子株式会社 ポリテトラフルオロエチレン水性乳化液及びその製造方法、該水性乳化液を用いて得られるポリテトラフルオロエチレン水性分散液、ポリテトラフルオロエチレンファインパウダー並びに延伸多孔体
GB201007043D0 (en) 2010-04-28 2010-06-09 3M Innovative Properties Co Process for producing ptfe and articles thereof
CN103261314B (zh) 2010-12-21 2016-01-20 大金工业株式会社 聚四氟乙烯混合物
JP5418584B2 (ja) 2010-12-21 2014-02-19 ダイキン工業株式会社 ポリテトラフルオロエチレン混合物
EP3000829B1 (de) 2011-08-25 2017-10-04 Daikin Industries, Ltd. Verfahren zur herstellung einer wässrigen polytetrafluorethylendispersion
US9775933B2 (en) 2012-03-02 2017-10-03 W. L. Gore & Associates, Inc. Biocompatible surfaces and devices incorporating such surfaces
EP2840115B1 (de) 2012-04-20 2018-06-06 Daikin Industries, Ltd. Zusammensetzung weitgehend auf basis von ptfe, mischpulver, formmasse, filtermedium für filter, luftfiltereinheit und verfahren zur herstellung einer porösen membran
WO2014119158A1 (ja) * 2013-01-31 2014-08-07 ダイキン工業株式会社 難燃性樹脂組成物、マスターバッチ、成形品、電線及びジャケット
EP3061512B1 (de) 2013-10-23 2020-12-09 Daikin Industries, Ltd. Geprägtes filtermedium für einen luftfilter, filterpaket, luftfiltereinheit und herstellungsverfahren für das geprägte filtermedium für einen luftfilter
JP5862751B2 (ja) 2013-11-29 2016-02-16 ダイキン工業株式会社 多孔質体、高分子電解質膜、フィルター用濾材及びフィルターユニット
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
US10987638B2 (en) 2015-06-19 2021-04-27 W. L. Gore & Associates, Inc. Asymmetric polytetrafluoroethylene composite having a macro-textured surface and method for making the same
JP6673230B2 (ja) 2017-01-12 2020-03-25 ダイキン工業株式会社 エアフィルタ濾材
WO2019168183A1 (ja) 2018-03-01 2019-09-06 ダイキン工業株式会社 フルオロポリマーの製造方法
WO2020018925A1 (en) 2018-07-19 2020-01-23 W.L. Gore & Associates, Inc. High flow liquid filtration device including a porous polyparaxylylene membrane or a porous polyparaxylylene/polytetrafluoroethylene composite membrane
JP6816746B2 (ja) 2018-07-20 2021-01-20 ダイキン工業株式会社 エアフィルタ濾材、フィルタパック、およびエアフィルタユニット
EP3828208A4 (de) 2018-07-23 2022-07-13 Daikin Industries, Ltd. Polytetrafluorethylen und gestreckter körper
US20220040614A1 (en) 2018-09-28 2022-02-10 Daikin Industries, Ltd. Air filter medium, filter pack, air filter unit, and method for producing the same
CN113039213B (zh) 2018-11-19 2023-07-28 大金工业株式会社 改性聚四氟乙烯的制造方法和组合物
US20220010118A1 (en) 2018-11-19 2022-01-13 Daikin Industries, Ltd. Composition and stretched body
WO2020158940A1 (ja) 2019-02-01 2020-08-06 ダイキン工業株式会社 ポリテトラフルオロエチレンの製造方法
CN113423557B (zh) 2019-02-07 2023-04-25 大金工业株式会社 组合物、拉伸体及其制造方法
CN114729071A (zh) 2019-11-19 2022-07-08 大金工业株式会社 聚四氟乙烯的制造方法
US20230015482A1 (en) 2019-12-13 2023-01-19 W. L. Gore & Associates, Inc. Porous polytetrafluoroethylene membrane having a macro-textured surface and method of making the same
CN116457376A (zh) 2020-11-19 2023-07-18 大金工业株式会社 聚四氟乙烯的制造方法和含有聚四氟乙烯的组合物
JP7181480B2 (ja) 2021-02-04 2022-12-01 ダイキン工業株式会社 エアフィルタ濾材、エアフィルタ濾材の製造方法、マスク用濾材、および、プリーツ状マスク用濾材
EP4342921A1 (de) 2021-05-19 2024-03-27 Daikin Industries, Ltd. Verfahren zur herstellung eines fluorpolymers, verfahren zur herstellung von polytetrafluorethylen und zusammensetzung
TW202302198A (zh) 2021-06-04 2023-01-16 日商大金工業股份有限公司 空氣過濾器濾材、褶襉狀濾材、空氣過濾器單元、口罩用濾材、及空氣過濾器濾材之再生方法
JP2023051890A (ja) 2021-09-30 2023-04-11 ダイキン工業株式会社 ポリテトラフルオロエチレンファインパウダー
WO2023091369A1 (en) 2021-11-19 2023-05-25 W. L. Gore & Associates, Inc. Poly(ionic liquid)s composite for absorption and separation

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US31341A (en) * 1861-02-05 Improvement in rotary harrows
US2559750A (en) * 1949-07-27 1951-07-10 Du Pont Aqueous colloidal dispersions of polytetrafluoroethylene and the formation of shapedstructures therefrom
US2586357A (en) * 1950-06-30 1952-02-19 Du Pont Tetrafluoroethylene polymer compositions
BE504311A (de) * 1950-06-30 1900-01-01
US2559752A (en) * 1951-03-06 1951-07-10 Du Pont Aqueous colloidal dispersions of polymers
US3142665A (en) * 1960-07-26 1964-07-28 Du Pont Novel tetrafluoroethylene resins and their preparation
DE1720739B1 (de) * 1967-10-21 1972-05-31 Hoechst Ag Verfahren zur hrstellung waessriger polytetrafluoraethylen-dispersionen
DE1720801C3 (de) * 1968-03-12 1975-01-16 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zur Herstellung von fluorhaltigen Polymeren
SE392582B (sv) * 1970-05-21 1977-04-04 Gore & Ass Forfarande vid framstellning av ett porost material, genom expandering och streckning av en tetrafluoretenpolymer framstelld i ett pastabildande strengsprutningsforfarande
US3692759A (en) * 1971-02-23 1972-09-19 Pennwalt Corp Extrudable polytetrafluoroethylene powder
US3704285A (en) * 1971-07-19 1972-11-28 Du Pont Dispersion polymerization of tetrafluoroethylene
US3819594A (en) * 1972-05-17 1974-06-25 Du Pont Tetrafluoroethylene fine powder resin of a copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether)
JPS5032098B2 (de) * 1972-08-09 1975-10-17
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US4145502A (en) * 1973-01-31 1979-03-20 Allied Chemical Corporation Spheroidal particulate polytetrafluoroethylene dispersion resin
DE2617829C2 (de) * 1976-04-23 1982-06-03 Hoechst Ag, 6000 Frankfurt Verfahren zur Herstellung von Suspensionspolymerisaten des Tetrafluoräthylens
DE2523569C3 (de) * 1975-05-28 1980-08-07 Hoechst Ag, 6000 Frankfurt Verfahren zur Polymerisation von Tetrafluoräthylen nach dem Suspensionsverfahren
US4134995A (en) * 1976-05-03 1979-01-16 Daikin Kogyo Kabushiki Kaisha Modified tetrafluoroethylene polymer and process for producing same
JPS5360979A (en) 1976-11-11 1978-05-31 Daikin Ind Ltd Polytetrafluoroethylene fine powder and its preparation
JPS5839443B2 (ja) * 1980-05-31 1983-08-30 ダイキン工業株式会社 ポリテトラフルオロエチレンフアインパウダ−の製造方法

Also Published As

Publication number Publication date
EP0170382A2 (de) 1986-02-05
EP0170382B1 (de) 1991-05-15
JPS6116907A (ja) 1986-01-24
US4576869A (en) 1986-03-18
CA1260200A (en) 1989-09-26
JP2560005B2 (ja) 1996-12-04
EP0170382A3 (en) 1986-10-08

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Legal Events

Date Code Title Description
8363 Opposition against the patent
8365 Fully valid after opposition proceedings