GB1057025A - Improvements in or relating to extrusion processes - Google Patents

Improvements in or relating to extrusion processes

Info

Publication number
GB1057025A
GB1057025A GB28661/62A GB2866162A GB1057025A GB 1057025 A GB1057025 A GB 1057025A GB 28661/62 A GB28661/62 A GB 28661/62A GB 2866162 A GB2866162 A GB 2866162A GB 1057025 A GB1057025 A GB 1057025A
Authority
GB
United Kingdom
Prior art keywords
plastics
coating
polystyrene
tube
base
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
GB28661/62A
Inventor
James Jack
Donald George Peacock
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.)
BX Plastics Ltd
Original Assignee
BX Plastics 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 BX Plastics Ltd filed Critical BX Plastics Ltd
Priority to GB28661/62A priority Critical patent/GB1057025A/en
Publication of GB1057025A publication Critical patent/GB1057025A/en
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
    • B29C48/335—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles
    • B29C48/336—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging one by one down streams in the die
    • 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
    • B29C48/16—Articles comprising two or more components, e.g. co-extruded layers
    • B29C48/18—Articles comprising two or more components, e.g. co-extruded layers the components being layers
    • B29C48/21—Articles comprising two or more components, e.g. co-extruded layers the components being layers the layers being joined at their surfaces
    • 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

Landscapes

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

Abstract

1,057,025. Coating tubes. B.X. PLASTICS Ltd. July 18, 1963 [July 25. 1962], No. 28661/62. Heading B5A. In an extension process for coating internally and externally a plastics tube with films of plastics material the coating material is fed on to the surfaces of the tube just before or as it emerges from die orifice 10. The base plastics material is extruded via a plastics manifold 2 into an extrusion channel 3, the width of which is adjusted by bolts 6, and plastics coating material is fed through channels 8a and 8b to manifolds 7a and 7b and from there through extrusion channels 9a. 9b. The coated tube may be subsequently cooled and blown to orientate the base material. Examples of base materials are polypropylene, P.V.C., polystyrene, foamed polystyrene, polyethylene and of coating materials; polyethylene, polystyrene. plasticized P.V.C., A.B.S. polymers and various copolymers.
GB28661/62A 1962-07-25 1962-07-25 Improvements in or relating to extrusion processes Expired GB1057025A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB28661/62A GB1057025A (en) 1962-07-25 1962-07-25 Improvements in or relating to extrusion processes

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28661/62A GB1057025A (en) 1962-07-25 1962-07-25 Improvements in or relating to extrusion processes

Publications (1)

Publication Number Publication Date
GB1057025A true GB1057025A (en) 1967-02-01

Family

ID=10279132

Family Applications (1)

Application Number Title Priority Date Filing Date
GB28661/62A Expired GB1057025A (en) 1962-07-25 1962-07-25 Improvements in or relating to extrusion processes

Country Status (1)

Country Link
GB (1) GB1057025A (en)

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