ES8107275A1 - Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno - Google Patents

Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno

Info

Publication number
ES8107275A1
ES8107275A1 ES497511A ES497511A ES8107275A1 ES 8107275 A1 ES8107275 A1 ES 8107275A1 ES 497511 A ES497511 A ES 497511A ES 497511 A ES497511 A ES 497511A ES 8107275 A1 ES8107275 A1 ES 8107275A1
Authority
ES
Spain
Prior art keywords
weight
stirring
free
polymers
pourable
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
ES497511A
Other languages
English (en)
Other versions
ES497511A0 (es
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.)
Hoechst AG
Original Assignee
Hoechst AG
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 Hoechst AG filed Critical Hoechst AG
Publication of ES497511A0 publication Critical patent/ES497511A0/es
Publication of ES8107275A1 publication Critical patent/ES8107275A1/es
Expired 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
    • C08J3/16—Powdering or granulating by coagulating dispersions
    • 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
    • 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
    • C08F259/00—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00
    • C08F259/08—Macromolecular compounds obtained by polymerising monomers on to polymers of halogen containing monomers as defined in group C08F14/00 on to polymers containing fluorine
    • 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

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)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)

Abstract

PROCEDIMIENTO PARA LA OBTENCION DE POLVOS SINTETIZADOS, FLUIDOS COMO LA ARENA, A BASE DE POLIMEROS QUE CONTENGAN, AL MENOS, 98,5 UNIDADES POLIMERIZADAS DE TETRAFLUORETILENO. CONSISTE EN PREPARAR UNA DISPERSION COLOIDAL DE POLIMERIZADO EN UN MEDIO ACUOSO EN PRESENCIA DE UN COMPUESTO DE SUPERFICIE ACTIVA; SE AGITA Y SE LE AGREGA UN COMPUESTO INORGANICO DISOCIANTE HIDROSOLUBLE, HASTA CONSEGUIR UN ESPESAMIENTO SUFICIENTE, PUESTO DE MANIFIESTO POR LA FALTA DE HOMOGENEIDAD OPTICA, CLARAMENTE VISIBLE; DESPUES SE AGREGA UN LIQUIDO ORGANICO QUE HUMEDEZCA BIEN LAS PARTICULAS DEL POLIMERIZADO QUE SE HALLAN EN DISPERSION Y, EVENTUALMENTE, SE AGREGA LA CARGA. UNA VEZ FORMADO EL GRANULADO DE POLIMERO, SE LAVA, SE SEPARA DEL MEDIO ACUOSO Y SE SECA. DE USO EN PROCESOS DE EXTRUSION PARA FABRICAR BARRAS Y TUBOS.
ES497511A 1979-12-12 1980-12-05 Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno Expired ES8107275A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19792949908 DE2949908A1 (de) 1979-12-12 1979-12-12 Rieselfaehige sinterpulver mit verbesserten eigenschaften auf basis von tetrafluorethylen-polymeren und verfahren zu deren herstellung

Publications (2)

Publication Number Publication Date
ES497511A0 ES497511A0 (es) 1981-10-16
ES8107275A1 true ES8107275A1 (es) 1981-10-16

Family

ID=6088222

Family Applications (1)

Application Number Title Priority Date Filing Date
ES497511A Expired ES8107275A1 (es) 1979-12-12 1980-12-05 Procedimiento para la obtencion de polvos sinterizados flui-dos como la arena,con propiedades mejoradas,a base de poli- meros de tetrafluoretileno

Country Status (7)

Country Link
US (2) US4368296A (es)
EP (1) EP0030664B1 (es)
JP (1) JPS56131629A (es)
CA (1) CA1192348A (es)
DE (2) DE2949908A1 (es)
ES (1) ES8107275A1 (es)
ZA (1) ZA807757B (es)

Families Citing this family (40)

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JPS5718710A (en) * 1980-07-08 1982-01-30 Asahi Glass Co Ltd Copolymer capable of giving elastomer containing fluorine having improved cold and oil resistance
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"
US4400386A (en) * 1981-11-06 1983-08-23 Riker Laboratories, Inc. Antimicrobial derivatives of 8-amino and 8-aminomethyl benzo(ij)quinolizine
US4524148A (en) * 1981-11-06 1985-06-18 Riker Laboratories, Inc. Antimicrobial 8,9-dihalobenzo[ij]quinolizine carboxylic acids
US4380543A (en) * 1981-11-06 1983-04-19 Riker Laboratories, Inc. Antimicrobial 8-cyano-6,7-dihydro-5-methyl-1-oxo-1H,5H-benzo[ij]quinolizine-2-carboxylic acids
US4556713A (en) * 1981-11-06 1985-12-03 Riker Laboratories, Inc. 6-Fluoro-5-nitroquinaldine
US4404207A (en) * 1981-11-06 1983-09-13 Riker Laboratories, Inc. Antimicrobial 8-substituted benzo [IJ]quinolizines
US4397980A (en) * 1982-09-17 1983-08-09 E. I. Du Pont De Nemours And Company Process for preparing PTFE powdered resins containing pigments employing ammonium carbonate or ammonium bicarbonate
US4530881A (en) * 1983-02-24 1985-07-23 Raymark Industries, Inc. Fluoroelastomer-based friction material having improved frictional properties
GB8306989D0 (en) * 1983-03-14 1983-04-20 Ae Plc Composition of matter
JPS59199774A (ja) * 1983-04-27 1984-11-12 Daikin Ind Ltd 下塗り剤組成物
US4580790A (en) * 1984-06-21 1986-04-08 Hughes Aircraft Company Sintered polytetrafluoroethylene composite material and seal assembly
JPS62260849A (ja) * 1986-04-11 1987-11-13 Daikin Ind Ltd 熱溶融性フツ素樹脂の顆粒状粉末およびその製造法
JPS6356532A (ja) * 1986-08-27 1988-03-11 Daikin Ind Ltd 変性ポリテトラフルオロエチレンファインパウダ−及びその製造方法
EP0284165B1 (en) * 1987-03-27 1991-01-02 Asahi Kasei Kogyo Kabushiki Kaisha A shaped article of a tetrafluoroethylene polymer
CA1301400C (en) * 1987-11-09 1992-05-19 Sellathurai Suppiah Porous composite materials and methods for preparing them
US5462705A (en) * 1988-10-27 1995-10-31 Labsphere, Inc. Method of forming diffusely reflecting sintered fluorinated long-chain addition polymers doped with pigments for color standard use
DE3941368A1 (de) * 1989-12-15 1991-06-20 Hoechst Ag Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und hydrophoben fuellstoffen
JP3000654B2 (ja) * 1990-10-19 2000-01-17 ダイキン工業株式会社 ポリテトラフルオロエチレン微粒子および粉末
DE4218965A1 (de) * 1992-06-10 1993-12-16 Hoechst Ag Verfahren und Vorrichtung zur Herstellung eines Polymerisates des Tetrafluorethylens in wäßriger Suspension
US5399307A (en) * 1993-06-18 1995-03-21 Dalton; Robert E. Methods of compression molding two or more polytetrafluoroethylene resin layers
GB2327087A (en) * 1995-01-18 1999-01-13 Gore & Ass Dispersion of PTFE particles
JPH0952955A (ja) * 1995-08-11 1997-02-25 Daikin Ind Ltd 変性ポリテトラフルオロエチレン粒状粉末の製法
JP3152284B2 (ja) 1997-03-17 2001-04-03 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粒状粉末
US6689833B1 (en) * 1997-04-09 2004-02-10 E. I. Du Pont De Nemours And Company Fluoropolymer stabilization
US6761431B2 (en) 1999-12-13 2004-07-13 Canon Kabushiki Kaisha Polymer film, polymeric compound for forming the same, method of manufacturing such polymeric compound, liquid-repellency treatment solution using such polymeric compound, surface-modifying method using such treatment solution and surface-modified article
US6593410B2 (en) * 2000-02-23 2003-07-15 Alliant Techsystems Inc. High strength reactive materials
USRE45899E1 (en) 2000-02-23 2016-02-23 Orbital Atk, Inc. Low temperature, extrudable, high density reactive materials
US7977420B2 (en) * 2000-02-23 2011-07-12 Alliant Techsystems Inc. Reactive material compositions, shot shells including reactive materials, and a method of producing same
US20050199323A1 (en) * 2004-03-15 2005-09-15 Nielson Daniel B. Reactive material enhanced munition compositions and projectiles containing same
MXPA02008942A (es) * 2000-03-17 2003-02-10 Thomson Licensing Sa Metodo y aparato para evitar la alteracion de datos a partir de mejoras relacionadas con video.
ITMI20011613A1 (it) * 2001-07-26 2003-01-26 Ausimont Spa Processo di coagulazione di polveri fini di ptfe
US7176265B2 (en) * 2002-11-22 2007-02-13 E. I. Du Pont De Nemours And Company Directly polymerized low molecular weight granular polytetrafluoroethylene
FR2867469A1 (fr) * 2004-03-15 2005-09-16 Alliant Techsystems Inc Compositions reactives contenant un metal, et leur procede de production
DE602006019211D1 (de) * 2005-03-07 2011-02-10 Asahi Glass Co Ltd Herstellungsverfahren für füllmaterialhaltiges polytetrafluoroethylengranulat
EP2116807A2 (en) * 2005-10-04 2009-11-11 Alliant Techsystems Inc. Reactive Material Enhanced Projectiles And Related Methods
KR101271693B1 (ko) * 2010-05-10 2013-06-04 삼성중공업 주식회사 선박용 추진 장치 및 이를 포함하는 선박
CN103124763B (zh) 2010-09-30 2015-01-14 大金工业株式会社 聚四氟乙烯细粉的制造方法
EP2623556A4 (en) * 2010-09-30 2015-03-11 Daikin Ind Ltd DRIP AND RESIN CONNECTION
US9309335B2 (en) 2010-09-30 2016-04-12 Daikin Industries, Ltd. Process for producing polytetrafluoroethylene fine powder

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GB917223A (en) 1959-04-30 1963-01-30 Glacier Co Ltd Homogeneous solid materials
US3142665A (en) * 1960-07-26 1964-07-28 Du Pont Novel tetrafluoroethylene resins and their preparation
US3245972A (en) * 1962-06-21 1966-04-12 Du Pont Polytetrafluoroethylene molding powder and its preparation
US3366615A (en) * 1964-09-16 1968-01-30 Allied Chem Method for agglomerating granular polytetrafluoroethylene
US3558550A (en) * 1967-02-07 1971-01-26 Montedison Spa Sinterings of polytetrafluoroethylene loaded with titanium and the preparation thereof
US4038230A (en) * 1970-11-19 1977-07-26 Allied Chemical Corporation Aqueous dispersion of particulate spheroidal polytetrafluoroethylene
FR2153488A5 (es) * 1971-09-13 1973-05-04 Ugine Kuhlmann
US3819594A (en) * 1972-05-17 1974-06-25 Du Pont Tetrafluoroethylene fine powder resin of a copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether)
JPS542224B2 (es) * 1972-07-03 1979-02-03
JPS5311296B2 (es) * 1974-03-28 1978-04-20
US3980596A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Co. Process for reducing filler loss
US3980612A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Company Process for reducing filler loss during polytetrafluoroethylene agglomeration
JPS5234653A (en) * 1975-09-11 1977-03-16 Nec Corp Current switching flip-flop
US4036802A (en) * 1975-09-24 1977-07-19 E. I. Du Pont De Nemours And Company Tetrafluoroethylene copolymer fine powder resin
JPS52114644A (en) * 1976-03-23 1977-09-26 Daikin Ind Ltd Preparation of finely powdered polytetrafluoroethylene containing fill ers
JPS5841933B2 (ja) * 1977-06-08 1983-09-16 住友金属工業株式会社 鉄鋼用連続鋳造鋳型
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

Also Published As

Publication number Publication date
DE3069917D1 (en) 1985-02-14
JPH0217576B2 (es) 1990-04-20
US4368296A (en) 1983-01-11
ES497511A0 (es) 1981-10-16
CA1192348A (en) 1985-08-20
EP0030664A3 (en) 1981-09-30
EP0030664B1 (de) 1985-01-02
JPS56131629A (en) 1981-10-15
DE2949908A1 (de) 1981-06-19
ZA807757B (en) 1982-01-27
EP0030664A2 (de) 1981-06-24
US4408007A (en) 1983-10-04

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