ES223337A1 - A procedure and apparatus for the production of thermostabilized flat films, starting from tubular films of organic thermoplastic material (Machine-translation by Google Translate, not legally binding) - Google Patents

A procedure and apparatus for the production of thermostabilized flat films, starting from tubular films of organic thermoplastic material (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES223337A1
ES223337A1 ES0223337A ES223337A ES223337A1 ES 223337 A1 ES223337 A1 ES 223337A1 ES 0223337 A ES0223337 A ES 0223337A ES 223337 A ES223337 A ES 223337A ES 223337 A1 ES223337 A1 ES 223337A1
Authority
ES
Spain
Prior art keywords
films
thermoplastic material
translation
starting
production
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
ES0223337A
Other languages
Spanish (es)
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
Priority claimed from GB23324/54A external-priority patent/GB781879A/en
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES223337A1 publication Critical patent/ES223337A1/en
Expired legal-status Critical Current

Links

Landscapes

  • Shaping Of Tube Ends By Bending Or Straightening (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)

Abstract

Process for the production of thermostated flat films, starting from tubular films of organic thermoplastic material, characterized by continuously withdrawing the cold, stretched, tubular film from a pair of drive or traction rollers; by inflating it by continuously admitting fluid, such as air, through the open end of the film, through fluid inlet means; by continuously passing through a heating zone the inflated film, to heat it to a temperature between that of drawing it and the melting point of the thermoplastic material; to make or allow after the film cools; by flattening it, at least partially, and by opening it on both edges. (Machine-translation by Google Translate, not legally binding)
ES0223337A 1954-08-11 1955-08-04 A procedure and apparatus for the production of thermostabilized flat films, starting from tubular films of organic thermoplastic material (Machine-translation by Google Translate, not legally binding) Expired ES223337A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB23324/54A GB781879A (en) 1954-08-11 1954-08-11 Improvements in and relating to the manufacture of films

Publications (1)

Publication Number Publication Date
ES223337A1 true ES223337A1 (en) 1955-11-16

Family

ID=38525262

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0223337A Expired ES223337A1 (en) 1954-08-11 1955-08-04 A procedure and apparatus for the production of thermostabilized flat films, starting from tubular films of organic thermoplastic material (Machine-translation by Google Translate, not legally binding)

Country Status (1)

Country Link
ES (1) ES223337A1 (en)

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