FR1509246A - Procédé de préparation de granulés de polytétrafluoréthylène - Google Patents

Procédé de préparation de granulés de polytétrafluoréthylène

Info

Publication number
FR1509246A
FR1509246A FR89568A FR89568A FR1509246A FR 1509246 A FR1509246 A FR 1509246A FR 89568 A FR89568 A FR 89568A FR 89568 A FR89568 A FR 89568A FR 1509246 A FR1509246 A FR 1509246A
Authority
FR
France
Prior art keywords
preparation
polytetrafluoroethylene granules
polytetrafluoroethylene
granules
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
FR89568A
Other languages
English (en)
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
Farbwerke 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, Farbwerke Hoechst AG filed Critical Hoechst AG
Application granted granted Critical
Publication of FR1509246A publication Critical patent/FR1509246A/fr
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
    • 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
    • C08J3/122—Pulverisation by spraying
    • 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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/0014—Use of organic additives
    • C08J9/0023—Use of organic additives containing oxygen
    • 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)
  • Emergency Medicine (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Compositions Of Macromolecular Compounds (AREA)
FR89568A 1965-12-30 1966-12-30 Procédé de préparation de granulés de polytétrafluoréthylène Expired FR1509246A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEF0048053 1965-12-30

Publications (1)

Publication Number Publication Date
FR1509246A true FR1509246A (fr) 1968-01-12

Family

ID=7102006

Family Applications (1)

Application Number Title Priority Date Filing Date
FR89568A Expired FR1509246A (fr) 1965-12-30 1966-12-30 Procédé de préparation de granulés de polytétrafluoréthylène

Country Status (8)

Country Link
US (1) US3532782A (fr)
AT (1) AT274355B (fr)
BE (1) BE692028A (fr)
CH (1) CH484957A (fr)
DE (1) DE1679830C3 (fr)
ES (1) ES334996A1 (fr)
FR (1) FR1509246A (fr)
GB (1) GB1173000A (fr)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3882217A (en) * 1970-12-11 1975-05-06 Ici Ltd Method for the production of free-flowing polytetrafluoroethylene molding powders
US3953412A (en) * 1972-08-09 1976-04-27 Takumi Saito Sintered micro-powder of tetrafluoroethylene polymers
JPS5032098B2 (fr) * 1972-08-09 1975-10-17
US4087517A (en) * 1974-10-21 1978-05-02 Charles L. Wragg, Jr. Method of dry lubricating the skin
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
DE3207744A1 (de) * 1982-03-04 1983-09-08 Ruhrchemie Ag, 4200 Oberhausen Verfahren zur herstellung rieselfaehiger homo- oder copolymerwachse des ethylens
EP0172750A3 (fr) * 1984-08-22 1987-03-18 E.I. Du Pont De Nemours And Company Structures poreuses
US5502161A (en) * 1994-12-21 1996-03-26 Ici Americas Inc. Method for the production of free-flowing tetrafluoroethylene polymer molding powders
JP3210936B2 (ja) * 1995-09-18 2001-09-25 ダイキン工業株式会社 フィラー入りポリテトラフルオロエチレン粒状粉末およびその製法
EP0857747A4 (fr) * 1995-10-27 1999-06-09 Daikin Ind Ltd Poudre granulaire comportant du polytetrafluoroethylene et procede de fabrication
DE102011078766B4 (de) * 2011-07-06 2017-02-02 Leibniz-Institut Für Polymerforschung Dresden E.V. Verfahren zur verarbeitung von ptfe

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3265679A (en) * 1963-09-19 1966-08-09 Pennsalt Chemicals Corp Chemical product and method for its manufacture
GB1100388A (en) * 1964-05-18 1968-01-24 Daikin Ind Ltd Polytetrafluoroethylene powder and method of preparation thereof

Also Published As

Publication number Publication date
DE1679830B2 (de) 1973-04-26
DE1679830C3 (de) 1974-01-10
ES334996A1 (es) 1968-03-16
US3532782A (en) 1970-10-06
DE1679830A1 (de) 1971-03-25
BE692028A (fr) 1967-06-30
CH484957A (de) 1970-01-31
GB1173000A (en) 1969-12-03
AT274355B (de) 1969-09-10

Similar Documents

Publication Publication Date Title
CH471833A (fr) Procédé de préparation de stéroïdes-oxazolines
CH461500A (fr) Procédé de préparation de nouveaux isoindolinosulfonylurées
FR1482577A (fr) Procédé de préparation de béta-alkyl-alpha, oméga-diaminoalcanes
FR1509246A (fr) Procédé de préparation de granulés de polytétrafluoréthylène
CH468412A (fr) Procédé de préparation de chlordialcoylthiophosphates
FR89870E (fr) Procédé de préparation de nu-vinyl-amides
FR1503372A (fr) Procédé de préparation de phénoxy-silanes halogénés
FR1515015A (fr) Procédé de préparation de poly-n-oxydes
CH458388A (fr) Procédé de préparation de dinitro-4,6 phénols substitués
CH452518A (fr) Procédé de préparation de 17a-acyloxy-11B-hydroxystéroïdes
FR92060E (fr) Procédé de préparation de phénoxy-silanes halogénés
CH480318A (fr) Procédé de préparation de 7a-méthyl gona-4,9-diènes
CH458320A (fr) Procédé de préparation du d-camphorate de 1-carnitinamide
FR1455825A (fr) Procédé de préparation de phényl-tétrahydropyridines substituées
FR1510206A (fr) Procédé de préparation de diaza-cyclo-alcanes substitués
FR1503599A (fr) Procédé de préparation de nouveaux 3-amino-cholestanes
FR1463883A (fr) Procédé de préparation de triaza-composés bicycliques
OA02281A (fr) Procédé de préparation de benzène-sulfonyl-urées.
FR1491587A (fr) Procédé de préparation de nouveaux 19-nor-androstatriènes
FR1513463A (fr) Procédé de préparation de nouveaux tri-iodo-diaminobenzènes
FR1505675A (fr) Procédé de préparation de 6alpha-fluoro-16-méthylène-stéroïdes
OA01821A (fr) Procédé de préparation de triaza-composés bicycliques.
FR1491588A (fr) Procédé de préparation de nouveaux 7-méthyl-19-nor-androstadiènes
FR1446100A (fr) Procédé de préparation de polymères semi-minéraux triphosphonitriliques modifiés
CH465238A (fr) Procédé de préparation de copolymères durcissables