IT1114693B - METHOD FOR THE MANUFACTURE OF POROUS POLYTETRAFLUOROETHYLENE PRODUCTS - Google Patents

METHOD FOR THE MANUFACTURE OF POROUS POLYTETRAFLUOROETHYLENE PRODUCTS

Info

Publication number
IT1114693B
IT1114693B IT3070077A IT3070077A IT1114693B IT 1114693 B IT1114693 B IT 1114693B IT 3070077 A IT3070077 A IT 3070077A IT 3070077 A IT3070077 A IT 3070077A IT 1114693 B IT1114693 B IT 1114693B
Authority
IT
Italy
Prior art keywords
manufacture
porous polytetrafluoroethylene
polytetrafluoroethylene products
products
porous
Prior art date
Application number
IT3070077A
Other languages
Italian (it)
Original Assignee
Ici Ltd
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
Priority claimed from GB5301976A external-priority patent/GB1567055A/en
Application filed by Ici Ltd filed Critical Ici Ltd
Application granted granted Critical
Publication of IT1114693B publication Critical patent/IT1114693B/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D3/00—Cutting work characterised by the nature of the cut made; Apparatus therefor
    • B26D3/28—Splitting layers from work; Mutually separating layers by cutting
    • 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
    • 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
    • B29C43/00—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor
    • B29C43/006—Pressing and sintering powders, granules or fibres
    • 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)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
IT3070077A 1976-12-20 1977-12-14 METHOD FOR THE MANUFACTURE OF POROUS POLYTETRAFLUOROETHYLENE PRODUCTS IT1114693B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB5302076 1976-12-20
GB5301976A GB1567055A (en) 1976-12-20 1976-12-20 Method of making articles of porous polytetrafluorothylene

Publications (1)

Publication Number Publication Date
IT1114693B true IT1114693B (en) 1986-01-27

Family

ID=26267178

Family Applications (1)

Application Number Title Priority Date Filing Date
IT3070077A IT1114693B (en) 1976-12-20 1977-12-14 METHOD FOR THE MANUFACTURE OF POROUS POLYTETRAFLUOROETHYLENE PRODUCTS

Country Status (4)

Country Link
JP (1) JPS5378269A (en)
DE (1) DE2756644C2 (en)
FR (1) FR2374153A1 (en)
IT (1) IT1114693B (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4474721A (en) * 1983-02-28 1984-10-02 Chemplast, Inc. Apparatus for forming threads and filaments of fluorocarbon resin and method thereof
GB8613015D0 (en) * 1986-05-29 1986-07-02 Thomas T R Porous ptfe
JPS6434407A (en) * 1987-07-30 1989-02-03 Toray Industries Porous membrane of polytetrafluoroethylene-base resin and production thereof
JPS6434408A (en) * 1987-07-30 1989-02-03 Toray Industries Porous membrane of polytetrafluoroethylene-base resin and production thereof
AT501770B1 (en) * 2005-04-07 2007-10-15 Michel Wolfgang Ing METHOD FOR PRODUCING A PROFILED TRAIL FROM POLYTETRAFLUOROETHYLENE
DE102007019447B4 (en) * 2007-04-25 2009-05-07 Spinner Gmbh High frequency device with low dielectric losses
JP5553024B2 (en) * 2008-10-23 2014-07-16 株式会社カネカ Method for producing thermoplastic foam film
DE102009020621B4 (en) * 2009-05-09 2011-03-03 Fecken-Kirfel Gmbh & Co. Kg Film peeling method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2400091A (en) * 1944-09-20 1946-05-14 Du Pont Molding process
DE1199972B (en) * 1956-11-20 1965-09-02 Montedison Spa Process for the production of micro-porous, gas-permeable products from polytetrafluoroethylene
DE1115441B (en) * 1958-02-01 1961-10-19 Ewald Merkel Dipl Ing Method and device for manufacturing hollow bodies, in particular porous ones, from materials based on polyhalohydrocarbons using sintering
DE1769315C3 (en) * 1968-05-07 1973-09-13 Farbwerke Hoechst Ag, Vormals Meister Lucius & Bruening, 6000 Frankfurt Foams made from tetrafluoroethylene polymers

Also Published As

Publication number Publication date
JPS5378269A (en) 1978-07-11
DE2756644A1 (en) 1978-06-22
DE2756644C2 (en) 1982-08-12
FR2374153A1 (en) 1978-07-13
FR2374153B1 (en) 1980-08-22

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