FR1157853A - Improvements in methods and apparatus for processing polytetrafluoroethylene and the like - Google Patents

Improvements in methods and apparatus for processing polytetrafluoroethylene and the like

Info

Publication number
FR1157853A
FR1157853A FR1157853DA FR1157853A FR 1157853 A FR1157853 A FR 1157853A FR 1157853D A FR1157853D A FR 1157853DA FR 1157853 A FR1157853 A FR 1157853A
Authority
FR
France
Prior art keywords
methods
processing polytetrafluoroethylene
polytetrafluoroethylene
processing
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
Other languages
French (fr)
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.)
Raybestos Manhattan Inc
Original Assignee
Raybestos Manhattan 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 Raybestos Manhattan Inc filed Critical Raybestos Manhattan Inc
Application granted granted Critical
Publication of FR1157853A publication Critical patent/FR1157853A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
    • D01F6/00—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof
    • D01F6/02—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds
    • D01F6/08—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons
    • D01F6/12—Monocomponent artificial filaments or the like of synthetic polymers; Manufacture thereof from homopolymers obtained by reactions only involving carbon-to-carbon unsaturated bonds from polymers of halogenated hydrocarbons from polymers of fluorinated hydrocarbons
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/022—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the choice of material
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/06—Rod-shaped
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/885—External treatment, e.g. by using air rings for cooling tubular films
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/88—Thermal treatment of the stream of extruded material, e.g. cooling
    • B29C48/919—Thermal treatment of the stream of extruded material, e.g. cooling using a bath, e.g. extruding into an open bath to coagulate or cool the material
    • 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
FR1157853D 1955-08-18 1956-08-17 Improvements in methods and apparatus for processing polytetrafluoroethylene and the like Expired FR1157853A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US529236A US2938234A (en) 1955-08-18 1955-08-18 Method for the treatment of extruded polytetrafluoroethylene

Publications (1)

Publication Number Publication Date
FR1157853A true FR1157853A (en) 1958-06-04

Family

ID=26769479

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1157853D Expired FR1157853A (en) 1955-08-18 1956-08-17 Improvements in methods and apparatus for processing polytetrafluoroethylene and the like

Country Status (4)

Country Link
US (1) US2938234A (en)
DE (1) DE1091743B (en)
FR (1) FR1157853A (en)
GB (1) GB836024A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3395049A (en) * 1963-07-15 1968-07-30 Exxon Research Engineering Co Method of making a porous electrode
US3480707A (en) * 1965-10-07 1969-11-25 Resistoflex Corp Production of p.t.f.e. tubing
US3635621A (en) * 1967-06-07 1972-01-18 Sumitomo Electric Industries Apparatus for crosslinking in curable rubber or plastic electric wire and cable
US3679190A (en) * 1971-01-15 1972-07-25 Nat Standard Co Apparatus for handling shrinkable material
US3724977A (en) * 1971-04-29 1973-04-03 Nat Standard Co Reducing and sintering furnace means
US4234535A (en) * 1976-04-29 1980-11-18 Sumitomo Electric Industries, Ltd. Process for producing porous polytetrafluoroethylene tubings
CA1216721A (en) * 1982-08-23 1987-01-20 Norman R. Harlow Manufacture of low density sintered polytetrafluoroethylene insulated cable
US4671754A (en) * 1984-03-28 1987-06-09 Sumitomo Electric Industries, Ltd. Apparatus for manufacturing porous polytetrafluoroethylene material
US4999146A (en) * 1990-02-12 1991-03-12 Thermax Wire Corp. Process for manufacture of low density polytetrofluoroethylene insulated cable

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1950026A (en) * 1929-07-02 1934-03-06 Celanese Corp Manufacture of artificial filaments or threads
US1952877A (en) * 1929-11-19 1934-03-27 Ruth Aldo Co Inc Apparatus for making artificial silk
US2232012A (en) * 1936-10-09 1941-02-18 Celanese Corp Manufacture of sheet materials
US2425782A (en) * 1944-03-04 1947-08-19 Celanese Corp Preparation of filaments
BE504311A (en) * 1950-06-30 1900-01-01

Also Published As

Publication number Publication date
DE1091743B (en) 1960-10-27
US2938234A (en) 1960-05-31
GB836024A (en) 1960-06-01

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