FR2134331A1 - Ptfe web - drawn at high temp to reduce its density - Google Patents

Ptfe web - drawn at high temp to reduce its density

Info

Publication number
FR2134331A1
FR2134331A1 FR7133178A FR7133178A FR2134331A1 FR 2134331 A1 FR2134331 A1 FR 2134331A1 FR 7133178 A FR7133178 A FR 7133178A FR 7133178 A FR7133178 A FR 7133178A FR 2134331 A1 FR2134331 A1 FR 2134331A1
Authority
FR
France
Prior art keywords
web
drawn
density
reduce
high temp
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.)
Granted
Application number
FR7133178A
Other languages
English (en)
French (fr)
Other versions
FR2134331B1 (enExample
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.)
POLYGEST AG
Original Assignee
POLYGEST 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 POLYGEST AG filed Critical POLYGEST AG
Publication of FR2134331A1 publication Critical patent/FR2134331A1/fr
Application granted granted Critical
Publication of FR2134331B1 publication Critical patent/FR2134331B1/fr
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C55/02—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets
    • B29C55/04—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique
    • B29C55/06—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of plates or sheets uniaxial, e.g. oblique parallel with the direction of feed
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
FR7133178A 1971-04-28 1971-09-15 Ptfe web - drawn at high temp to reduce its density Granted FR2134331A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH625571A CH549454A (de) 1971-04-28 1971-04-28 Verfahren zur herstellung eines blattes oder bandes aus polytetrafluoraethylen von geringer dichte.

Publications (2)

Publication Number Publication Date
FR2134331A1 true FR2134331A1 (en) 1972-12-08
FR2134331B1 FR2134331B1 (enExample) 1974-05-31

Family

ID=4306698

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7133178A Granted FR2134331A1 (en) 1971-04-28 1971-09-15 Ptfe web - drawn at high temp to reduce its density

Country Status (2)

Country Link
CH (1) CH549454A (enExample)
FR (1) FR2134331A1 (enExample)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000639B1 (en) * 1977-07-22 1983-04-13 METAL BOX p.l.c. Method of producing a uniaxially oriented polymer material.
WO1996010478A1 (en) * 1994-10-03 1996-04-11 Westone Products Limited Method and apparatus for forming elongate ptfe material and ptfe material particularly dental floss
GB2308827A (en) * 1994-10-03 1997-07-09 Westone Prod Ltd Method and apparatus for forming elongate PTFE material and PTFE material and PTFE material particularly dental floss
US6436135B1 (en) 1974-10-24 2002-08-20 David Goldfarb Prosthetic vascular graft

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014382A (enExample) * 1969-10-03 1971-04-06

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL7014382A (enExample) * 1969-10-03 1971-04-06

Cited By (7)

* 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
EP0000639B1 (en) * 1977-07-22 1983-04-13 METAL BOX p.l.c. Method of producing a uniaxially oriented polymer material.
WO1996010478A1 (en) * 1994-10-03 1996-04-11 Westone Products Limited Method and apparatus for forming elongate ptfe material and ptfe material particularly dental floss
GB2308827A (en) * 1994-10-03 1997-07-09 Westone Prod Ltd Method and apparatus for forming elongate PTFE material and PTFE material and PTFE material particularly dental floss
US5657779A (en) * 1994-10-03 1997-08-19 Westone Products Limited Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
US5806539A (en) * 1994-10-03 1998-09-15 Westone Products Limited Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss
GB2308827B (en) * 1994-10-03 1998-12-23 Westone Prod Ltd Method and apparatus for forming elongate PTFE material and PTFE material particularly dental floss

Also Published As

Publication number Publication date
CH549454A (de) 1974-05-31
FR2134331B1 (enExample) 1974-05-31

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