IT7827899A0 - Processo per preparare granuli agglomerati di polimero tetrafluoroetilenico granulare non lavorabile allo stato fuso - Google Patents

Processo per preparare granuli agglomerati di polimero tetrafluoroetilenico granulare non lavorabile allo stato fuso

Info

Publication number
IT7827899A0
IT7827899A0 IT7827899A IT2789978A IT7827899A0 IT 7827899 A0 IT7827899 A0 IT 7827899A0 IT 7827899 A IT7827899 A IT 7827899A IT 2789978 A IT2789978 A IT 2789978A IT 7827899 A0 IT7827899 A0 IT 7827899A0
Authority
IT
Italy
Prior art keywords
processable
melted state
tetrafluoroethylene polymer
agglomerated granules
preparing agglomerated
Prior art date
Application number
IT7827899A
Other languages
English (en)
Other versions
IT1202776B (it
Original Assignee
Du Pont
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 Du Pont filed Critical Du Pont
Publication of IT7827899A0 publication Critical patent/IT7827899A0/it
Application granted granted Critical
Publication of IT1202776B publication Critical patent/IT1202776B/it

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
    • 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)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
IT27899/78A 1977-09-21 1978-09-20 Processo per preparare granuli agglomerti di polimero tetrafluoroetilinico granulare non lavorabile allo stato fuso IT1202776B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/835,806 US4123606A (en) 1977-09-21 1977-09-21 Deagglomeration process

Publications (2)

Publication Number Publication Date
IT7827899A0 true IT7827899A0 (it) 1978-09-20
IT1202776B IT1202776B (it) 1989-02-09

Family

ID=25270513

Family Applications (1)

Application Number Title Priority Date Filing Date
IT27899/78A IT1202776B (it) 1977-09-21 1978-09-20 Processo per preparare granuli agglomerti di polimero tetrafluoroetilinico granulare non lavorabile allo stato fuso

Country Status (7)

Country Link
US (1) US4123606A (it)
JP (1) JPS5454156A (it)
DE (1) DE2841149C3 (it)
FR (1) FR2404015B1 (it)
GB (1) GB2004896B (it)
IT (1) IT1202776B (it)
NL (1) NL190287C (it)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4241137A (en) * 1977-11-22 1980-12-23 Daikin Kogyo Co., Ltd. Process for preparing polytetrafluoroethylene granular powder
JPS5618624A (en) * 1979-07-24 1981-02-21 Daikin Ind Ltd Production of filled polytetrafluoroethylene fine powder
NL8003949A (nl) * 1980-07-09 1982-02-01 Electrochem Energieconversie Werkwijze voor de vervaardiging van een laag van een elektrode voor een cel, in het bijzonder voor een brandstofcel.
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"
JPS63159438A (ja) * 1986-12-22 1988-07-02 Daikin Ind Ltd テトラフルオロエチレン系共重合体粉末の製法
JP3000609B2 (ja) * 1990-03-08 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粒状粉末の製法
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
US5977295A (en) * 1990-03-12 1999-11-02 Daikin Industries, Ltd Continuous process for preparing polytetrafluoroethylene wet powder
WO1993016126A1 (en) * 1992-02-05 1993-08-19 Daikin Industries, Ltd. Polytetrafluoroethylene powder for molding
US5709944A (en) * 1992-02-05 1998-01-20 Daikin Industries, Ltd. Polytetrafluoroethylene molding powder
JPH0743775U (ja) * 1993-07-26 1995-09-12 株式会社ヨネイ 皺付き片面自己粘着性防音及び防振材
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
DE19547909A1 (de) * 1995-12-21 1997-06-26 Dyneon Gmbh Verfahren zur Nachbehandlung von thermoplastischen Fluorpolymeren
US20040130968A1 (en) * 2002-10-09 2004-07-08 Novozymes A/S Method for improving particle compositions
EP1624958A2 (en) 2002-10-09 2006-02-15 Novozymes A/S A method for improving particle compositions
DE502007005555D1 (de) * 2006-03-22 2010-12-16 Basf Se Verfahren und vorrichtung zur granulierung von treibmittelhaltigen polymerschmelzen
WO2012158644A1 (en) * 2011-05-13 2012-11-22 E. I. Du Pont De Nemours And Company Slurry technique for producing fluoropolymer composites

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3087921A (en) * 1958-09-02 1963-04-30 Du Pont Polytetrafluoroethylene molding powder
US3115486A (en) * 1960-11-30 1963-12-24 Du Pont Process for the preparation of polytetrafluoroethylene molding powder
GB1033638A (en) * 1963-09-09 1966-06-22 Du Pont Polytetrafluoroethylene moulding powders and their preparation
US3366615A (en) * 1964-09-16 1968-01-30 Allied Chem Method for agglomerating granular polytetrafluoroethylene
US3527857A (en) * 1965-10-26 1970-09-08 Hoechst Ag Process for preparing polytetrafluoroethylene-containing powder
US3781258A (en) * 1968-09-11 1973-12-25 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof
JPS568044B2 (it) * 1972-07-29 1981-02-21
US3980612A (en) * 1975-04-11 1976-09-14 E. I. Du Pont De Nemours And Company Process for reducing filler loss during polytetrafluoroethylene agglomeration

Also Published As

Publication number Publication date
FR2404015B1 (fr) 1985-07-12
NL190287C (nl) 1994-01-03
GB2004896B (en) 1982-03-10
DE2841149A1 (de) 1979-03-29
IT1202776B (it) 1989-02-09
JPH0160049B2 (it) 1989-12-20
GB2004896A (en) 1979-04-11
NL190287B (nl) 1993-08-02
DE2841149C2 (it) 1987-03-19
JPS5454156A (en) 1979-04-28
NL7809580A (nl) 1979-03-23
DE2841149C3 (de) 1993-12-02
FR2404015A1 (fr) 1979-04-20
US4123606A (en) 1978-10-31

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TA Fee payment date (situation as of event date), data collected since 19931001

Effective date: 19970729