GB1240883A - Films of polytetrafluorethylene and process for making them - Google Patents

Films of polytetrafluorethylene and process for making them

Info

Publication number
GB1240883A
GB1240883A GB4855268A GB4855268A GB1240883A GB 1240883 A GB1240883 A GB 1240883A GB 4855268 A GB4855268 A GB 4855268A GB 4855268 A GB4855268 A GB 4855268A GB 1240883 A GB1240883 A GB 1240883A
Authority
GB
United Kingdom
Prior art keywords
film
roll
sintering
tension
temperature
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
GB4855268A
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
Publication of GB1240883A publication Critical patent/GB1240883A/en
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
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • 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
    • B29C43/22—Compression moulding, i.e. applying external pressure to flow the moulding material; Apparatus therefor of articles of indefinite length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2007/00—Flat articles, e.g. films or sheets
    • 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
    • C08J2327/14—Homopolymers or copolymers of vinyl fluoride

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Mechanical Engineering (AREA)
  • Materials Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
GB4855268A 1967-10-13 1968-10-14 Films of polytetrafluorethylene and process for making them Expired GB1240883A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DEF0053763 1967-10-13
DEF0054288 1967-12-12
DEF0054444 1967-12-29

Publications (1)

Publication Number Publication Date
GB1240883A true GB1240883A (en) 1971-07-28

Family

ID=27210547

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4855268A Expired GB1240883A (en) 1967-10-13 1968-10-14 Films of polytetrafluorethylene and process for making them

Country Status (8)

Country Link
BE (1) BE722281A (cg-RX-API-DMAC7.html)
CA (1) CA918365A (cg-RX-API-DMAC7.html)
CH (1) CH480158A (cg-RX-API-DMAC7.html)
ES (1) ES359004A1 (cg-RX-API-DMAC7.html)
FR (1) FR1589529A (cg-RX-API-DMAC7.html)
GB (1) GB1240883A (cg-RX-API-DMAC7.html)
NL (1) NL6814336A (cg-RX-API-DMAC7.html)
SE (1) SE344902B (cg-RX-API-DMAC7.html)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5118788A (en) * 1990-05-14 1992-06-02 Daikin Industries Ltd. Process for preparing polytetrafluoroethylene powder
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
CN113844141A (zh) * 2021-09-23 2021-12-28 上海索康医用材料有限公司 一种膨体聚四氟乙烯外科隔离膜及其制作工艺

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3485470D1 (de) * 1983-10-05 1992-03-05 Nippon Petrochemicals Co Ltd Verfahren zur herstellung thermoplastischer kunststoffolien oder fuellstoffhaltiger kunststoffolien.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft
US5118788A (en) * 1990-05-14 1992-06-02 Daikin Industries Ltd. Process for preparing polytetrafluoroethylene powder
CN113844141A (zh) * 2021-09-23 2021-12-28 上海索康医用材料有限公司 一种膨体聚四氟乙烯外科隔离膜及其制作工艺
CN113844141B (zh) * 2021-09-23 2023-09-15 上海索康医用材料有限公司 一种膨体聚四氟乙烯外科隔离膜及其制作工艺

Also Published As

Publication number Publication date
CH480158A (de) 1969-10-31
ES359004A1 (es) 1970-07-01
FR1589529A (cg-RX-API-DMAC7.html) 1970-03-31
SE344902B (cg-RX-API-DMAC7.html) 1972-05-08
NL6814336A (cg-RX-API-DMAC7.html) 1969-04-15
BE722281A (cg-RX-API-DMAC7.html) 1969-04-14
CA918365A (en) 1973-01-09

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