ES219776A1 - Procedimiento y aparato para la fabricacion de peliculas - Google Patents

Procedimiento y aparato para la fabricacion de peliculas

Info

Publication number
ES219776A1
ES219776A1 ES0219776A ES219776A ES219776A1 ES 219776 A1 ES219776 A1 ES 219776A1 ES 0219776 A ES0219776 A ES 0219776A ES 219776 A ES219776 A ES 219776A ES 219776 A1 ES219776 A1 ES 219776A1
Authority
ES
Spain
Prior art keywords
die
annular
plane
tubular film
round
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
ES0219776A
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.)
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
Application filed by Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Publication of ES219776A1 publication Critical patent/ES219776A1/es
Expired 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles
    • B29C48/34—Cross-head annular extrusion nozzles, i.e. for simultaneously receiving moulding material and the preform to be coated
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/03—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor characterised by the shape of the extruded material at extrusion
    • B29C48/09—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels
    • B29C48/10—Articles with cross-sections having partially or fully enclosed cavities, e.g. pipes or channels flexible, e.g. blown foils
    • 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
    • B29C48/00—Extrusion moulding, i.e. expressing the moulding material through a die or nozzle which imparts the desired form; Apparatus therefor
    • B29C48/25—Component parts, details or accessories; Auxiliary operations
    • B29C48/30—Extrusion nozzles or dies
    • B29C48/32—Extrusion nozzles or dies with annular openings, e.g. for forming tubular articles

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)

Abstract

Procedimiento para la fabricación de películas, caracterizado porque éstas se obtienen en forma tubular y por comprender el expulsar un material orgánico sintético, termoplástico, en estado de fusión, a través del orificio o abertura periféricos de un canal anular de expulsión formado entre las superficies practicamente planas, horizontales y paralelas de una matriz o hilera anular que termina en una superficie de expulsión practicamente plana, de matriz fronteriza que tiene prolongaciones no permanentemente fijas, más allá del plano de su superficie de expulsión.
ES0219776A 1954-02-08 1955-01-27 Procedimiento y aparato para la fabricacion de peliculas Expired ES219776A1 (es)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3592/54A GB755983A (en) 1954-02-08 1954-02-08 Improvements in and relating to the production of film

Publications (1)

Publication Number Publication Date
ES219776A1 true ES219776A1 (es) 1955-03-16

Family

ID=9761247

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0219776A Expired ES219776A1 (es) 1954-02-08 1955-01-27 Procedimiento y aparato para la fabricacion de peliculas

Country Status (2)

Country Link
ES (1) ES219776A1 (es)
GB (1) GB755983A (es)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT8222367V0 (it) * 1982-07-09 1982-07-09 Cavalli Alfredo Trafila per pasta sfoglia, particolarmente per macchine per la pasta di uso domestico.

Also Published As

Publication number Publication date
GB755983A (en) 1956-08-29

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