ES2176362T3 - Proceso para la preparacion de polvos de moldeo de polimero tetrafluoroestileno humedecidos. - Google Patents

Proceso para la preparacion de polvos de moldeo de polimero tetrafluoroestileno humedecidos.

Info

Publication number
ES2176362T3
ES2176362T3 ES95944639T ES95944639T ES2176362T3 ES 2176362 T3 ES2176362 T3 ES 2176362T3 ES 95944639 T ES95944639 T ES 95944639T ES 95944639 T ES95944639 T ES 95944639T ES 2176362 T3 ES2176362 T3 ES 2176362T3
Authority
ES
Spain
Prior art keywords
tetrafluoroestilene
moisturized
preparation
molding powder
polymer molding
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
ES95944639T
Other languages
English (en)
Inventor
Leonard William Harvey
Eric Nathaniel Martin
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.)
Asahi Glass Fluoropolymers USA Inc
Original Assignee
Asahi Glass Fluoropolymers USA Inc
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 Asahi Glass Fluoropolymers USA Inc filed Critical Asahi Glass Fluoropolymers USA Inc
Application granted granted Critical
Publication of ES2176362T3 publication Critical patent/ES2176362T3/es
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
    • 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
    • C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
    • C08K5/00—Use of organic ingredients
    • C08K5/04—Oxygen-containing compounds
    • C08K5/06—Ethers; Acetals; Ketals; Ortho-esters
    • 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Macromolecular Compounds Obtained By Forming Nitrogen-Containing Linkages In General (AREA)

Abstract

SE PRESENTA UN PROCESO MEJORADO PARA LA PREPARACION DE POLVOS POLIMERICOS DE TETRAFLUORETILENO (TFE) DE FLUJO LIBRE EN DONDE UN POLVO POLIMERICO DE TFE (1) SE HUMEDECE CON UNA SOLUCION ACUOSA QUE CONTIENE UN AGENTE HUMECTANTE SELECCIONADO DEL GRUPO QUE CONSISTE EN (A) ETERES DE ETILENGLICOL, (B) ETERES DE PROPILENGLICOL Y (C) DIOLES O TRIOLES, (2) SE AGLOMERA Y (3) SE SECA.
ES95944639T 1994-12-21 1995-12-13 Proceso para la preparacion de polvos de moldeo de polimero tetrafluoroestileno humedecidos. Expired - Lifetime ES2176362T3 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US08/362,378 US5502161A (en) 1994-12-21 1994-12-21 Method for the production of free-flowing tetrafluoroethylene polymer molding powders

Publications (1)

Publication Number Publication Date
ES2176362T3 true ES2176362T3 (es) 2002-12-01

Family

ID=23425875

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95944639T Expired - Lifetime ES2176362T3 (es) 1994-12-21 1995-12-13 Proceso para la preparacion de polvos de moldeo de polimero tetrafluoroestileno humedecidos.

Country Status (10)

Country Link
US (1) US5502161A (es)
EP (1) EP0799273B1 (es)
JP (1) JP3495736B2 (es)
AT (1) ATE217017T1 (es)
CA (1) CA2208242C (es)
DE (1) DE69526591T2 (es)
DK (1) DK0799273T3 (es)
ES (1) ES2176362T3 (es)
PT (1) PT799273E (es)
WO (1) WO1996020241A2 (es)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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
DE102011078766B4 (de) * 2011-07-06 2017-02-02 Leibniz-Institut Für Polymerforschung Dresden E.V. Verfahren zur verarbeitung von ptfe

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3244687A (en) * 1956-05-24 1966-04-05 Coathylene Sa Process for the production of dry, finely divided and fusible polyethylene powders
GB1100388A (en) * 1964-05-18 1968-01-24 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof
US3527857A (en) * 1965-10-26 1970-09-08 Hoechst Ag Process for preparing polytetrafluoroethylene-containing powder
DE1679830C3 (de) * 1965-12-30 1974-01-10 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Verfahren zur Herstellung eines Granulats aus pulvrigem Polytetrafluoräthylen
US3597405A (en) * 1966-04-21 1971-08-03 Daikin Ind Ltd Polytertrafluoroethylene powder and method for making the same
US3781258A (en) * 1968-09-11 1973-12-25 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof
DE1814869C3 (de) * 1968-12-16 1974-07-18 Farbwerke Hoechst Ag, Vorm. Meister Lucius & Bruening, 6230 Frankfurt Wäßrige Paste zur Herstellung von elektrischen Widerständen
US3682859A (en) * 1969-06-20 1972-08-08 Liquid Nitrogen Processing Free-flowing tetrafluoroethylene polymer composition and process of producing the same
US3882217A (en) * 1970-12-11 1975-05-06 Ici Ltd Method for the production of free-flowing polytetrafluoroethylene molding powders
US3983200A (en) * 1970-12-11 1976-09-28 Imperial Chemical Industries Limited Method for the production of polytetrafluoroethylene moulding powders
DE2132680A1 (de) * 1971-07-01 1973-01-18 Glasforskningsinstitutet Verfahren zur herstellung von pelletisierten glasgemengen
US4143110A (en) * 1977-07-08 1979-03-06 Asahi Glass Company Ltd. Method of agglomerating polytetrafluoroethylene powder
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"
DE3941368A1 (de) * 1989-12-15 1991-06-20 Hoechst Ag Verfahren zur herstellung eines agglomerierten formpulvers aus polytetrafluorethylen und hydrophoben fuellstoffen

Also Published As

Publication number Publication date
CA2208242A1 (en) 1996-07-04
PT799273E (pt) 2002-10-31
EP0799273B1 (en) 2002-05-02
DK0799273T3 (da) 2002-07-29
MX9704635A (es) 1997-09-30
EP0799273A2 (en) 1997-10-08
US5502161A (en) 1996-03-26
CA2208242C (en) 2005-06-14
WO1996020241A3 (en) 1996-09-06
JP3495736B2 (ja) 2004-02-09
ATE217017T1 (de) 2002-05-15
DE69526591D1 (de) 2002-06-06
DE69526591T2 (de) 2002-12-05
WO1996020241A2 (en) 1996-07-04
JPH10511723A (ja) 1998-11-10

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