SE8700684L - PROCEDURE FOR POROSA PREPARATION - Google Patents

PROCEDURE FOR POROSA PREPARATION

Info

Publication number
SE8700684L
SE8700684L SE8700684A SE8700684A SE8700684L SE 8700684 L SE8700684 L SE 8700684L SE 8700684 A SE8700684 A SE 8700684A SE 8700684 A SE8700684 A SE 8700684A SE 8700684 L SE8700684 L SE 8700684L
Authority
SE
Sweden
Prior art keywords
production
porosa
procedure
preparation
bodies
Prior art date
Application number
SE8700684A
Other languages
Swedish (sv)
Other versions
SE8700684D0 (en
Inventor
K Aeschbach
H Eilentropp
H A Reinmann
Original Assignee
Reinmann & Cie Lara
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 Reinmann & Cie Lara filed Critical Reinmann & Cie Lara
Publication of SE8700684D0 publication Critical patent/SE8700684D0/en
Publication of SE8700684L publication Critical patent/SE8700684L/en

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
    • C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
    • C08J9/24—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof by surface fusion and bonding of particles to form voids, e.g. sintering
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/005—Shaping by stretching, e.g. drawing through a die; Apparatus therefor characterised by the choice of materials
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/02—Moulding by agglomerating
    • B29C67/04—Sintering
    • 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
    • B29C67/00—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00
    • B29C67/20—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored
    • B29C67/205—Shaping techniques not covered by groups B29C39/00 - B29C65/00, B29C70/00 or B29C73/00 for porous or cellular articles, e.g. of foam plastics, coarse-pored comprising surface fusion, and bonding of particles to form voids, e.g. sintering
    • 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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B19/00—Apparatus or processes specially adapted for manufacturing insulators or insulating bodies
    • H01B19/02—Drying; Impregnating
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
    • H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
    • H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
    • H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
    • H01B3/44—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins
    • H01B3/443—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds
    • H01B3/445—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes vinyl resins; acrylic resins from vinylhalogenides or other halogenoethylenic compounds from vinylfluorides or other fluoroethylenic compounds
    • 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
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • 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
    • 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
    • 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)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

In the production of such bodies, moulded bodies produced by paste extrusion are freed by drying, in a first step of a continuous process, from the lubricating or parting agent used in their production and, in a second step, are stretched and the polymer material simultaneously sintered at a temperature at least equal to the crystallite melting temperature of the polymer. Stretching may be effected in the output direction and/or transversely thereto. The moulded bodies, e.g. tapes or foils, have properties making them suitable for use in the construction of elongate products, such as electric cables and leads, tube assembly cables and pipelines.
SE8700684A 1986-02-21 1987-02-19 PROCEDURE FOR POROSA PREPARATION SE8700684L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE3605588 1986-02-21

Publications (2)

Publication Number Publication Date
SE8700684D0 SE8700684D0 (en) 1987-02-19
SE8700684L true SE8700684L (en) 1987-08-22

Family

ID=6294618

Family Applications (1)

Application Number Title Priority Date Filing Date
SE8700684A SE8700684L (en) 1986-02-21 1987-02-19 PROCEDURE FOR POROSA PREPARATION

Country Status (12)

Country Link
JP (1) JPS62205136A (en)
CN (1) CN87100900A (en)
AU (2) AU6910087A (en)
BE (1) BE1001311A3 (en)
BR (1) BR8700796A (en)
CA (1) CA1316312C (en)
CH (1) CH672094A5 (en)
FR (1) FR2594744B1 (en)
GB (1) GB2187460B (en)
IT (1) IT1202444B (en)
NL (1) NL8700379A (en)
SE (1) SE8700684L (en)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2074349C (en) * 1991-07-23 2004-04-20 Shinji Tamaru Polytetrafluoroethylene porous film and preparation and use thereof
US5466509A (en) * 1993-01-15 1995-11-14 Impra, Inc. Textured, porous, expanded PTFE
WO1994019170A1 (en) * 1993-02-18 1994-09-01 W.L. Gore & Associates, Inc. Macroscopically perforated porous polytetrafluoroethylene materials
DE4309779A1 (en) * 1993-03-25 1994-09-29 Herding Entstaubung Fixed bed bioreactor for cleaning fluids with the aid of microorganisms, support bodies for fixed bed bioreactors and processes for their production
CN1107747C (en) * 1999-08-10 2003-05-07 四川大学 High-pressure sinter process for synthosizing large-size polymer crystal
JP5658860B2 (en) * 2008-05-12 2015-01-28 日東電工株式会社 Polytetrafluoroethylene porous membrane, method for producing the same, and filter medium
CN102151493A (en) * 2011-03-18 2011-08-17 上腾新材料科技（苏州）有限公司 Method for preparing nano polytetrafluoroethylene microporous membrane
CN112088041A (en) * 2018-05-15 2020-12-15 住友电气工业株式会社 Hollow fiber membrane and method for producing hollow fiber membrane
WO2020027962A1 (en) * 2018-07-31 2020-02-06 Commscope Technologies Llc High strength dielectric member for a communications cable
US11410800B2 (en) 2018-07-31 2022-08-09 Commscope Technologies Llc Low cost extrudable isolator from slit-tape
CN112023715A (en) * 2020-08-26 2020-12-04 北京中科沃特膜科技有限公司 Preparation method of polytetrafluoroethylene hollow fiber membrane with high porosity

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4049589A (en) * 1973-03-19 1977-09-20 Sumitomo Electric Industries, Ltd. Porous films of polytetrafluoroethylene and process for producing said films
US4234535A (en) * 1976-04-29 1980-11-18 Sumitomo Electric Industries, Ltd. Process for producing porous polytetrafluoroethylene tubings
GB2025835B (en) * 1978-05-31 1982-10-27 Nitto Electric Ind Co Producing a porous polytetrafluorethylene article
JPS5825368B2 (en) * 1979-02-14 1983-05-27 日東電工株式会社 Method for manufacturing porous polytetrafluoroethylene film
DE3020622C2 (en) * 1980-05-30 1985-05-15 W.L. Gore & Associates, Inc., Newark, Del. Ribbon cable and process for its manufacture
JPS58119834A (en) * 1982-01-11 1983-07-16 Nitto Electric Ind Co Ltd Manufacture of porous polytetrafluoroethylene film
JPS59109506A (en) * 1982-12-14 1984-06-25 Daikin Ind Ltd Novel fine polytetrafluoroethylene powder
JPS59109534A (en) * 1982-12-14 1984-06-25 Nitto Electric Ind Co Ltd Porous polytetrafluoroethylene object
CA1277474C (en) * 1985-04-02 1990-12-11 Norman Ralph Harlow Manufacture of low density, sintered polytetrafluoroethylene articles

Also Published As

Publication number Publication date
IT8719195A0 (en) 1987-01-29
CA1316312C (en) 1993-04-20
CN87100900A (en) 1987-09-09
AU6659690A (en) 1991-02-21
GB8704045D0 (en) 1987-03-25
FR2594744B1 (en) 1990-06-08
NL8700379A (en) 1987-09-16
BR8700796A (en) 1987-12-15
BE1001311A3 (en) 1989-09-26
IT1202444B (en) 1989-02-09
SE8700684D0 (en) 1987-02-19
GB2187460B (en) 1990-09-12
JPS62205136A (en) 1987-09-09
FR2594744A1 (en) 1987-08-28
AU6910087A (en) 1987-08-27
CH672094A5 (en) 1989-10-31
GB2187460A (en) 1987-09-09

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