GB1116739A - Method of producing a laminate of thermoplastic film, and a laminate thus produced - Google Patents

Method of producing a laminate of thermoplastic film, and a laminate thus produced

Info

Publication number
GB1116739A
GB1116739A GB45188/66A GB4518866A GB1116739A GB 1116739 A GB1116739 A GB 1116739A GB 45188/66 A GB45188/66 A GB 45188/66A GB 4518866 A GB4518866 A GB 4518866A GB 1116739 A GB1116739 A GB 1116739A
Authority
GB
United Kingdom
Prior art keywords
tube
laminate
film
produced
rolls
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
GB45188/66A
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.)
Shell Internationale Research Maatschappij BV
Original Assignee
Shell Internationale Research Maatschappij BV
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 Shell Internationale Research Maatschappij BV filed Critical Shell Internationale Research Maatschappij BV
Publication of GB1116739A publication Critical patent/GB1116739A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • 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
    • B29C48/25—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
    • 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
    • B29C48/337—Multiple annular extrusion nozzles in coaxial arrangement, e.g. for making multi-layered tubular articles the components merging at a common location
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0011—Combinations of extrusion moulding with other shaping operations combined with compression moulding
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0018—Combinations of extrusion moulding with other shaping operations combined with shaping by orienting, stretching or shrinking, e.g. film blowing
    • 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
    • B29C48/001—Combinations of extrusion moulding with other shaping operations
    • B29C48/0019—Combinations of extrusion moulding with other shaping operations combined with shaping by flattening, folding or bending
    • 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
    • B29C48/17—Articles comprising two or more components, e.g. co-extruded layers the components having different colours

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

1,116,739. Laminates. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 10 Oct., 1966 [11 Oct., 1965; 15 April, 1966 (2)], No. 45188/66. Heading B5N. A laminated thermoplastic film is produced by extruding and blowing a thermoplastic film, sealing the blown tube in a non-plasticized condition, heating the flat film tube so that the facing surfaces thereof become in a plasticized condition, and fusing the opposite sections of the flat tube by the application of pressure. An apparatus for performing these operations comprises an extruder 10 having an annular die 21 from which a thin-walled tube 11 is extruded and then blown up by air, a pair of sealing rolls 13 having guide plates 11 for flattening the tube, drive rolls 16 and 19 which keep the flattened tube taut as it passes heaters 18, which may be, e.g. infra-red heaters, roll 19 also supplying the pressure to bond the facing surfaces of the tubular film. The flattened tube should preferably be kept horizontal while it is heated, and the heating is arranged so that the inner surfaces of the tube plasticize, but the lower surface does not and can stand being drawn by rolls 16 and 19. An alternative apparatus uses two extruders, each leading into a half of the same annular die. In this case, the edges are suitably cut off the final laminate, since the boundary between the film halves will not be a straight line. A further apparatus produces a four-layer laminate by extruding a laminated film using a die having two concentric annular openings each fed by a different extruder. In this case it is found that the layers of the tubular laminate produced have varying thicknesses, but it is stated that the extruders are preferably arranged coaxially, with the sealing rolls 13 normal to this axis, to produce a laminate having a uniform overall thickness and the same proportions of the two components across its width. The thermoplastic material is suitably polyethylene, and if two extruders are used, a laminate of black and white polyethylene e.g. for packaging milk, may be produced.
GB45188/66A 1965-10-11 1966-10-10 Method of producing a laminate of thermoplastic film, and a laminate thus produced Expired GB1116739A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
NL6513127A NL6513127A (en) 1965-10-11 1965-10-11
NL6605051A NL6605051A (en) 1965-10-11 1966-04-15
NL6605050A NL6605050A (en) 1965-10-11 1966-04-15

Publications (1)

Publication Number Publication Date
GB1116739A true GB1116739A (en) 1968-06-12

Family

ID=27351346

Family Applications (1)

Application Number Title Priority Date Filing Date
GB45188/66A Expired GB1116739A (en) 1965-10-11 1966-10-10 Method of producing a laminate of thermoplastic film, and a laminate thus produced

Country Status (6)

Country Link
AT (1) AT294414B (en)
BE (1) BE688021A (en)
DE (1) DE1629656A1 (en)
GB (1) GB1116739A (en)
NL (3) NL6513127A (en)
SE (1) SE312670B (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067613A1 (en) * 1981-06-03 1982-12-22 Union Carbide Corporation Three layer film having a low core layer of low pressure, low density polyethylene
WO2001032394A1 (en) * 1999-11-05 2001-05-10 Nuova Pansac S.P.A. Apparatus and method for producing a polyolefinic transpiring film
US7219484B2 (en) 2001-01-26 2007-05-22 Reckitt Benckiser (Uk) Limited Process for preparing a laminated, thermoformed film
CN111936312A (en) * 2018-04-16 2020-11-13 博里利斯股份公司 Method for producing a multilayer laminate

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0067613A1 (en) * 1981-06-03 1982-12-22 Union Carbide Corporation Three layer film having a low core layer of low pressure, low density polyethylene
WO2001032394A1 (en) * 1999-11-05 2001-05-10 Nuova Pansac S.P.A. Apparatus and method for producing a polyolefinic transpiring film
US7219484B2 (en) 2001-01-26 2007-05-22 Reckitt Benckiser (Uk) Limited Process for preparing a laminated, thermoformed film
CN111936312A (en) * 2018-04-16 2020-11-13 博里利斯股份公司 Method for producing a multilayer laminate
US11884044B2 (en) 2018-04-16 2024-01-30 Borealis Ag Process for producing a multilayer laminate

Also Published As

Publication number Publication date
NL6605051A (en) 1967-10-16
DE1629656A1 (en) 1971-02-04
AT294414B (en) 1971-11-25
NL6513127A (en) 1967-04-12
NL6605050A (en) 1967-10-16
BE688021A (en) 1967-04-10
SE312670B (en) 1969-07-21

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