DE19547907A1 - Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen - Google Patents

Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen

Info

Publication number
DE19547907A1
DE19547907A1 DE19547907A DE19547907A DE19547907A1 DE 19547907 A1 DE19547907 A1 DE 19547907A1 DE 19547907 A DE19547907 A DE 19547907A DE 19547907 A DE19547907 A DE 19547907A DE 19547907 A1 DE19547907 A1 DE 19547907A1
Authority
DE
Germany
Prior art keywords
powder
units
diameter
ether
perfluoro
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.)
Withdrawn
Application number
DE19547907A
Other languages
German (de)
English (en)
Inventor
Gernot Dr Loehr
Klaus Dr Hintzer
Reinhard Dr Sulzbach
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.)
Dyneon GmbH
Original Assignee
Dyneon GmbH
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 Dyneon GmbH filed Critical Dyneon GmbH
Priority to DE19547907A priority Critical patent/DE19547907A1/de
Priority to EP96120039A priority patent/EP0784069B1/de
Priority to AT96120039T priority patent/ATE247145T1/de
Priority to DE59610657T priority patent/DE59610657D1/de
Priority to AU75475/96A priority patent/AU7547596A/en
Priority to TR96/01033A priority patent/TR199601033A2/xx
Priority to US08/771,785 priority patent/US6489419B1/en
Priority to JP8341819A priority patent/JPH09202815A/ja
Priority to CN96121585A priority patent/CN1074775C/zh
Priority to NO965499A priority patent/NO965499L/no
Priority to RU96124077/04A priority patent/RU2179562C2/ru
Priority to CA002193607A priority patent/CA2193607C/en
Publication of DE19547907A1 publication Critical patent/DE19547907A1/de
Priority to US09/054,086 priority patent/US6099774A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • 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
    • C08J3/00—Processes of treating or compounding macromolecular substances
    • C08J3/12—Powdering or granulating
    • C08J3/16—Powdering or granulating by coagulating dispersions
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
    • C08L27/00—Compositions 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; Compositions of derivatives of such polymers
    • C08L27/02—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment
    • C08L27/12—Compositions 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; Compositions of derivatives of such polymers not modified by chemical after-treatment containing fluorine atoms
    • C08L27/18—Homopolymers or copolymers or tetrafluoroethene
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • 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
    • B29K2105/25—Solid
    • B29K2105/251—Particles, powder or granules
    • 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
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00—Stock material or miscellaneous articles
    • Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
    • Y10T428/2982—Particulate matter [e.g., sphere, flake, etc.]

Landscapes

  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Dispersion Chemistry (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Polymerisation Methods In General (AREA)
  • Materials For Medical Uses (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
DE19547907A 1995-12-21 1995-12-21 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen Withdrawn DE19547907A1 (de)

Priority Applications (13)

Application Number Priority Date Filing Date Title
DE19547907A DE19547907A1 (de) 1995-12-21 1995-12-21 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen
EP96120039A EP0784069B1 (de) 1995-12-21 1996-12-13 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen
AT96120039T ATE247145T1 (de) 1995-12-21 1996-12-13 Nichtrieselfähige formpulver aus modifizierten polytetrafluorethylenen
DE59610657T DE59610657D1 (de) 1995-12-21 1996-12-13 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen
AU75475/96A AU7547596A (en) 1995-12-21 1996-12-19 Non-free flowable molding powders of modified polytetrafluoroethylenes
TR96/01033A TR199601033A2 (tr) 1995-12-21 1996-12-19 Degisiklige tabi tutulmus politetrafluoroetilenden yapilan, serbestce akmayan kalip pudralari/unlari.
JP8341819A JPH09202815A (ja) 1995-12-21 1996-12-20 変性ポリテトラフルオロエチレンの非自由流動性成形粉
US08/771,785 US6489419B1 (en) 1995-12-21 1996-12-20 Non-free flowable molding powders of modified polytetrafluoroethylenes
CN96121585A CN1074775C (zh) 1995-12-21 1996-12-20 改性聚四氟乙烯非散粒状塑粉料
NO965499A NO965499L (no) 1995-12-21 1996-12-20 Ikke-risledyktig formpulver av modifiserte polytetrafluoretylener
RU96124077/04A RU2179562C2 (ru) 1995-12-21 1996-12-20 Несыпучие формованные порошки из модифицированных политетрафторэтиленов и способ их получения
CA002193607A CA2193607C (en) 1995-12-21 1996-12-20 Non-free flowable molding powders of modified polytetrafluoroethylenes
US09/054,086 US6099774A (en) 1995-12-21 1998-04-02 Process for non-free flowable molding powders of modified polytetrafluoroethylenes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19547907A DE19547907A1 (de) 1995-12-21 1995-12-21 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen

Publications (1)

Publication Number Publication Date
DE19547907A1 true DE19547907A1 (de) 1997-06-26

Family

ID=7780863

Family Applications (2)

Application Number Title Priority Date Filing Date
DE19547907A Withdrawn DE19547907A1 (de) 1995-12-21 1995-12-21 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen
DE59610657T Expired - Fee Related DE59610657D1 (de) 1995-12-21 1996-12-13 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE59610657T Expired - Fee Related DE59610657D1 (de) 1995-12-21 1996-12-13 Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen

Country Status (11)

Country Link
US (2) US6489419B1 (enExample)
EP (1) EP0784069B1 (enExample)
JP (1) JPH09202815A (enExample)
CN (1) CN1074775C (enExample)
AT (1) ATE247145T1 (enExample)
AU (1) AU7547596A (enExample)
CA (1) CA2193607C (enExample)
DE (2) DE19547907A1 (enExample)
NO (1) NO965499L (enExample)
RU (1) RU2179562C2 (enExample)
TR (1) TR199601033A2 (enExample)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3666210B2 (ja) * 1997-07-24 2005-06-29 旭硝子株式会社 ポリテトラフルオロエチレン造粒粉末の製造法
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
US20040040473A1 (en) * 2002-09-03 2004-03-04 Jose Walter Compositions for use in making models
KR101231504B1 (ko) * 2005-03-07 2013-02-07 아사히 가라스 가부시키가이샤 충전재가 들어간 폴리테트라플루오로에틸렌 조립물의 제조방법
US8637144B2 (en) * 2007-10-04 2014-01-28 W. L. Gore & Associates, Inc. Expandable TFE copolymers, method of making, and porous, expended articles thereof
CN104968687A (zh) * 2013-02-05 2015-10-07 旭硝子株式会社 聚四氟乙烯模塑粉的制造方法及聚四氟乙烯造粒物的制造方法
CN105061660B (zh) * 2015-08-05 2018-08-24 上海三爱富新材料科技有限公司 可熔性聚四氟乙烯的制造方法

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3366615A (en) 1964-09-16 1968-01-30 Allied Chem Method for agglomerating granular polytetrafluoroethylene
GB1116210A (en) * 1966-05-25 1968-06-06 Du Pont Granular tetrafluoroethylene copolymer molding powders
US3690569A (en) * 1970-09-24 1972-09-12 Du Pont Granular polytetrafluoroethylene of good moldability and apparent bulk density
JPS5032098B2 (enExample) * 1972-08-09 1975-10-17
US3855191A (en) * 1973-04-04 1974-12-17 Du Pont Polytetrafluoroethylene molding powders of tetrafluoroethylene and perfluoro (alkyl vinyl ether) copolymer
US4143110A (en) * 1977-07-08 1979-03-06 Asahi Glass Company Ltd. Method of agglomerating polytetrafluoroethylene powder
DE2744244C3 (de) * 1977-10-01 1981-01-08 Hoechst Ag, 6000 Frankfurt Thermisch vorbehandeltes, aus der Schmelze nicht verarbeitbares, mit einem perfluorierten Monomeren modifiziertes Tetrafluoräthylen-Polymerisatpulver und Verfahren zur Herstellung von Pulvern von aus der Schmelze nicht verarbeitbaren Tetrafluoräthylen-Polymerisaten mit hohem Schüttgewicht und guter Rieselfähigkeit
US4241137A (en) * 1977-11-22 1980-12-23 Daikin Kogyo Co., Ltd. Process for preparing polytetrafluoroethylene granular powder
DE3110193A1 (de) * 1980-06-06 1982-09-30 Hoechst Ag, 6000 Frankfurt "verbessertes verfahren zur herstellung von modifiziertem tetrafluorethylen-polymerisatpulver mit hohem schuettgewicht und guter rieselfaehigkeit"
JPS6021694B2 (ja) * 1980-07-08 1985-05-29 ダイキン工業株式会社 フイラ−入りポリテトラフルオロエチレン成形粉末の製造方法
DE3135598A1 (de) * 1981-09-09 1983-03-17 Hoechst Ag, 6000 Frankfurt "kontinuierliches verfahren zur agglomerierung von ptee-pulvern im fluessigen medium und damit gewonnenes modifiziertes ptee-pulver"
US4714756A (en) * 1985-10-23 1987-12-22 E. I. Du Pont De Nemours And Company Process for preparing melt processible tetrafluoroethylene copolymer granules
US4948844A (en) * 1988-04-16 1990-08-14 Tokuyama Soda Kabushiki Kaisha Process for preparation of perfluorinated copolymer
DK161743C (da) * 1989-07-03 1992-02-17 Niro Atomizer As Fremgangsmaade og apparat til agglomerering af et pulverformigt materiale
JPH03259926A (ja) * 1990-03-08 1991-11-20 Daikin Ind Ltd ポリテトラフルオロエチレン粒状粉末の製法
US5182119A (en) * 1991-04-18 1993-01-26 Ici Americas, Inc. Apparatus for production of free flowing polytetrafluoroethylene (PTFE) molding pellets
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

Also Published As

Publication number Publication date
CN1163281A (zh) 1997-10-29
NO965499L (no) 1997-06-23
CA2193607C (en) 2005-05-03
ATE247145T1 (de) 2003-08-15
AU7547596A (en) 1997-06-26
TR199601033A2 (tr) 1997-07-21
DE59610657D1 (de) 2003-09-18
EP0784069A2 (de) 1997-07-16
JPH09202815A (ja) 1997-08-05
CN1074775C (zh) 2001-11-14
EP0784069B1 (de) 2003-08-13
CA2193607A1 (en) 1997-06-22
NO965499D0 (no) 1996-12-20
US6099774A (en) 2000-08-08
EP0784069A3 (de) 1998-01-07
RU2179562C2 (ru) 2002-02-20
US6489419B1 (en) 2002-12-03

Similar Documents

Publication Publication Date Title
EP0074096B1 (de) Kontinuierliches Verfahren zur Agglomerierung von PTFE-Pulvern im flüssigen Medium und damit gewonnenes modifiziertes PTFE-Pulver
DE69710090T2 (de) Metallpigmentzusammensetzung
DE3586301T2 (de) Verfahren zum granulieren von pulverfoermigen stoffen und die erhaltenen produkte.
EP0299344A2 (de) Staubarmes sprühgetrocknetes Emulsionspolymerisat und Verfahren zu seiner Herstellung und Anwendung
EP0784069B1 (de) Nichtrieselfähige Formpulver aus modifizierten Polytetrafluorethylenen
DE3012235A1 (de) Poly-(m-phenylenisophthalamid)- formmassen
DE2063635C3 (de) Verfahren zur Herstellung eines nicht faserigen ultrafeinen Polytetrafluoräthylen-Formpulvers
DE69823492T2 (de) Körniges modifiziertes polytetrafluoroethylenpulver
DE1595468B1 (de) Verfahren zur herstellung von aethylenpolymerisatenverfahren zur herstellung von aethylenpolymerisaten
DE69825255T2 (de) Nicht gefülltes körniges polytetrafluoroethylenpulver und verfahren zu seiner herstellung
DE69514722T2 (de) Verfahren zur Herstellung von Formen aus metallischem oder keramischem Pulver und dabei verwendbares Bindemittelsystem
EP0001420A1 (de) Verfahren zur Nachbehandlung von thermisch vorbehandelten Tetrafluoräthylen-Polymerisaten unter Verbesserung des Fliessverhaltens und derart nachbehandelte Polymerisat-Pulver
DE69111673T2 (de) Verfahren zur Herstellung von körnigem Polytetrafluoroethylenpulver.
DE2161857C3 (de) Verfahren zur Herstellung eines ggf. mit Füllstoffen versehenen PoIytetrafluoräthylenformpulvers
EP0294663B1 (de) Sprühgetrocknetes Emulsionspolymerisat, Verfahren zu seiner Herstellung und Verwendung und daraus bereitete Formmasse
EP0575900B1 (de) Die Verwendung von mikronisiertem Polyethylenwachs als Trennmittel für klebrige Granulate
DE3319093C2 (enExample)
DE2526958C2 (de) Polytetrafluoräthylenformpulver
DE2147568A1 (de) Verfahren zur Herstellung eines Formpulvers aus granulärem Polytetrafluoräthylen
DE60211346T2 (de) Ablagerungsbeständige bzw. Plateout-beständige, thermoplastische Harzzusammensetzung
DE2338285C3 (enExample)
DE2659435C2 (enExample)
DE3118499C2 (de) Verfahren zur Herstellung vergrößerter Pulverteilchen aus Polyolefin
DE1494264A1 (de) Gesinterter Gegenstand aus Polytetrafluoraethylen
DE2315942A1 (de) Verfahren zur herstellung von freifliessendem polytetrafluor-aethylen-granulat

Legal Events

Date Code Title Description
8139 Disposal/non-payment of the annual fee