FR2395131A2 - STRETCHING OF POLYMERIC FILMS - Google Patents

STRETCHING OF POLYMERIC FILMS

Info

Publication number
FR2395131A2
FR2395131A2 FR7818382A FR7818382A FR2395131A2 FR 2395131 A2 FR2395131 A2 FR 2395131A2 FR 7818382 A FR7818382 A FR 7818382A FR 7818382 A FR7818382 A FR 7818382A FR 2395131 A2 FR2395131 A2 FR 2395131A2
Authority
FR
France
Prior art keywords
stretching
polymeric films
counter
relates
films
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
FR7818382A
Other languages
French (fr)
Other versions
FR2395131B2 (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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries 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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=10234192&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=FR2395131(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of FR2395131A2 publication Critical patent/FR2395131A2/en
Application granted granted Critical
Publication of FR2395131B2 publication Critical patent/FR2395131B2/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
    • 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
    • B29K2067/00—Use of polyesters or derivatives thereof, as moulding material

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

L'invention concerne l'industrie des polymères. Elle a pour objet un procédé pour étirer des pellicules polymères sans striction importante sur des cylindres contrarotatifs 26, 27 ménageant une portée courte et sur le premier desquels la pellicule peut être pressée par un cylindre applicateur 28, le premier des cylindres contrarotatifs ayant de préférence une matité superficielle exprimée par une ligne centrale moyenne d'au moins 0,127 micron. procédé est appliqué par préférence à l'étirage de pellicules de poly(téréphtalate d'éthylène).The invention relates to the polymer industry. It relates to a process for stretching polymeric films without significant necking on counter-rotating rolls 26, 27 providing a short span and on the first of which the film can be pressed by an applicator cylinder 28, the first of the counter-rotating rolls preferably having a Surface dullness expressed as an average center line of at least 0.127 microns. The method is preferably applied to the stretching of films of poly (ethylene terephthalate).

FR7818382A 1977-06-21 1978-06-20 STRETCHING OF POLYMERIC FILMS Granted FR2395131A2 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB25839/77A GB1594493A (en) 1977-06-21 1977-06-21 Stretching of polymeric films

Publications (2)

Publication Number Publication Date
FR2395131A2 true FR2395131A2 (en) 1979-01-19
FR2395131B2 FR2395131B2 (en) 1980-11-07

Family

ID=10234192

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7818382A Granted FR2395131A2 (en) 1977-06-21 1978-06-20 STRETCHING OF POLYMERIC FILMS

Country Status (9)

Country Link
EP (1) EP0000242B1 (en)
JP (1) JPS548673A (en)
AU (1) AU519259B2 (en)
BE (1) BE868326R (en)
DE (1) DE2860834D1 (en)
FR (1) FR2395131A2 (en)
GB (1) GB1594493A (en)
IT (1) IT1108837B (en)
LU (1) LU79850A1 (en)

Families Citing this family (2)

* 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
GB8424062D0 (en) * 1984-09-24 1984-10-31 Mackley M R Oriented polymer films

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799896A (en) * 1954-04-20 1957-07-23 Celanese Corp Sheet extrusion apparatus
FR1522626A (en) * 1966-04-15 1968-04-26 Ici Ltd Method and apparatus for heat treatment of films
LU52992A1 (en) * 1966-02-15 1968-10-09

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2558923C2 (en) * 1975-01-08 1982-12-16 Imperial Chemical Industries Ltd., London Device for the continuous longitudinal stretching of a polymeric plastic film

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2799896A (en) * 1954-04-20 1957-07-23 Celanese Corp Sheet extrusion apparatus
LU52992A1 (en) * 1966-02-15 1968-10-09
FR1522626A (en) * 1966-04-15 1968-04-26 Ici Ltd Method and apparatus for heat treatment of films

Also Published As

Publication number Publication date
AU3694978A (en) 1979-12-13
BE868326R (en) 1978-12-21
GB1594493A (en) 1981-07-30
AU519259B2 (en) 1981-11-19
EP0000242B1 (en) 1981-07-15
FR2395131B2 (en) 1980-11-07
EP0000242A1 (en) 1979-01-10
IT7824703A0 (en) 1978-06-19
IT1108837B (en) 1985-12-09
LU79850A1 (en) 1979-09-06
DE2860834D1 (en) 1981-10-22
JPS548673A (en) 1979-01-23

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