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GB1309011A - Multilayer laminated sheet - Google Patents

Multilayer laminated sheet

Info

Publication number
GB1309011A
GB1309011A GB941370A GB941370A GB1309011A GB 1309011 A GB1309011 A GB 1309011A GB 941370 A GB941370 A GB 941370A GB 941370 A GB941370 A GB 941370A GB 1309011 A GB1309011 A GB 1309011A
Authority
GB
United Kingdom
Prior art keywords
layer
die
polymer
styrene
barrier layer
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
GB941370A
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.)
Dow Chemical Co
Original Assignee
Dow Chemical Co
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 Dow Chemical Co filed Critical Dow Chemical Co
Publication of GB1309011A publication Critical patent/GB1309011A/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
    • B29C48/03—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
    • B29C48/07—Flat, e.g. panels
    • 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
    • B29C48/07—Flat, e.g. panels
    • B29C48/08—Flat, e.g. panels flexible, e.g. films
    • 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
    • B29C48/305—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets
    • B29C48/307—Extrusion nozzles or dies having a wide opening, e.g. for forming sheets specially adapted for bringing together components, e.g. melts within the die
    • 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
    • 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
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B32B27/08—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
    • 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
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/302—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising aromatic vinyl (co)polymers, e.g. styrenic (co)polymers
    • 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
    • B32B27/32—Layered products comprising a layer of synthetic resin comprising polyolefins
    • 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
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/04—Interconnection of layers
    • B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
    • 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
    • B32B2307/00—Properties of the layers or laminate
    • B32B2307/70—Other properties
    • B32B2307/724—Permeability to gases, adsorption
    • B32B2307/7242—Non-permeable
    • B32B2307/7244—Oxygen barrier
    • 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
    • B32B2327/00—Polyvinylhalogenides
    • 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
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging

Landscapes

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

Abstract

1309011 Extruding laminar plastics sheet; laminates DOW CHEMICAL CO 26 Feb 1970 [10 March 1969] 9413/70 Headings B5A and B5N A thermoplastics laminate comprises an inner barrier layer, e.g. of 0À2 to 5À0 mils. thickness, resistant to the passage of moisture and oxygen, with an adhesive layer, e.g. of 0À2 to 1À0 mil. on either side thereof, to one of which is adhered a polyeolefin layer, e.g. of 1 to 5 mils., and to the other of which is adhered a styrene polymer layer, e.g. of 10 to 100 mils. thickness. The styrene layer 33 is extruded from a die 32 and applied by hot rolls 34, 34A to the remainder 29 of the laminate extruded from a die 28, the laminate being cooled by rolls 36. The die 28 comprises multiple inlets from different extruders; 23 for the inner barrier layer; 25 for the adhesive 14 which is distributed by a plenum 25A around the outlet of passage 23; and 27, for the polyolefin 16, which is subdivided and recombined by a baffle 37 into layers, each of a thickness preferably equal to that of the adhesive and barrier layer, at the outlet of passage 23; the combined layers being distributed by a manifold 38 to issue as the sheet 29 from the die. It is stated that the barrier layer preferably comprises a polymer containing at least 70% by weight vinylidene chloride, e.g. 85% thereof with 15% vinyl chloride, but may also comprise vinylidene fluoride polymers. The adhesive layer preferably comprises either ethylene co-polymer with vinyl acetate, ethylacrylate, isobutyl acrylate, or chlorinated paraffin containing polyvinyl chloride. The polyolefin may comprise polyethylene or polypropylene. The styrene layer may comprise polymers of various specified monovinyl aromatic compounds, mixtures of such with 50% or less of monomeric vinyl or vinylidene chloride, high impact styrene based on natural or GRS rubber, or stryene - acrylonitrilebutadiene co-polymer.
GB941370A 1969-03-10 1970-02-26 Multilayer laminated sheet Expired GB1309011A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US80545269A 1969-03-10 1969-03-10

Publications (1)

Publication Number Publication Date
GB1309011A true GB1309011A (en) 1973-03-07

Family

ID=25191606

Family Applications (2)

Application Number Title Priority Date Filing Date
GB996172A Expired GB1309012A (en) 1969-03-10 1970-02-26 Extrusion die
GB941370A Expired GB1309011A (en) 1969-03-10 1970-02-26 Multilayer laminated sheet

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB996172A Expired GB1309012A (en) 1969-03-10 1970-02-26 Extrusion die

Country Status (5)

Country Link
BE (1) BE747056A (en)
DE (2) DE2007963A1 (en)
FR (1) FR2037174B1 (en)
GB (2) GB1309012A (en)
NL (1) NL7001843A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000558A1 (en) * 1977-07-29 1979-02-07 BASF Aktiengesellschaft Multilayered products, the layers of which are bonded together by means of an adhesive layer
FR2515099A1 (en) * 1981-10-23 1983-04-29 Composite Container Corp COEXTRUDED THERMOPLASTIC SHEET, RIGID CONTAINER OBTAINED FROM SHEET, AND PROCESS FOR PRODUCING THE SHEET AND CONTAINER
FR2545040A1 (en) * 1983-04-27 1984-11-02 Solvay MULTI-LAYER THERMOPLASTIC STRUCTURES COMPRISING A POLYMER LAYER OF VINYLIDENE FLUORIDE LINKED TO A LAYER OF ALPHA-OLEFIN POLYMER
EP0132316A2 (en) * 1983-07-16 1985-01-30 Mb Group Plc Multi-layer plastics structures and apparatus and methods for their manufacture

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA974870A (en) * 1970-09-25 1975-09-23 The Dow Chemical Company Packaging film and process of preparation
GB1364176A (en) * 1971-03-29 1974-08-21 Cosden Oil & Chem Co Co extrusion of multiple layered sheeting
NL172931C (en) * 1972-01-07 1983-11-16 Dow Chemical Co RIGID MULTIPLE LAYERS COMPRISING AN INNER COATING OF A VINYLIDE CHLORIDE (CO) POLYMER AND OUTER LAYERS OF ANOTHER POLYMER, ALSO CONTAINERS CONTAINED FROM THIS.
JPS5382888A (en) * 1976-12-29 1978-07-21 Kureha Chem Ind Co Ltd Co-extruded five-layered drawn cylindrical film and its manufacture
JPS56139544U (en) * 1980-03-19 1981-10-22
DE19548169C1 (en) * 1995-12-22 1997-07-24 Helio Folien Gmbh Device for producing a coextrusion film and method for producing it

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR495368A (en) * 1919-01-28 1919-10-07 Vernon Ets New way of using vegetable waste by drying and mixing
FR501068A (en) * 1919-06-25 1920-04-01 Robert Wortmann Dust separator
BE651049A (en) * 1964-07-27 1964-11-16
FR1484153A (en) * 1965-07-01 1967-06-09 Dow Chemical Co Wrapping film and method of making this film

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0000558A1 (en) * 1977-07-29 1979-02-07 BASF Aktiengesellschaft Multilayered products, the layers of which are bonded together by means of an adhesive layer
FR2515099A1 (en) * 1981-10-23 1983-04-29 Composite Container Corp COEXTRUDED THERMOPLASTIC SHEET, RIGID CONTAINER OBTAINED FROM SHEET, AND PROCESS FOR PRODUCING THE SHEET AND CONTAINER
FR2545040A1 (en) * 1983-04-27 1984-11-02 Solvay MULTI-LAYER THERMOPLASTIC STRUCTURES COMPRISING A POLYMER LAYER OF VINYLIDENE FLUORIDE LINKED TO A LAYER OF ALPHA-OLEFIN POLYMER
EP0124931A1 (en) * 1983-04-27 1984-11-14 SOLVAY & Cie (Société Anonyme) Thermoplastic multilayer structures comprising a vinyl or vinylidene fluoride polymer layer bound to an alpha-olefin polymer layer
US4585694A (en) * 1983-04-27 1986-04-29 Solvay & Cie (Societe Anonyme) Multi-layered thermoplastic structures comprising a layer of a vinyl or vinylidene fluoride polymer bonded to a layer of an alpha-olefin polymer
EP0132316A2 (en) * 1983-07-16 1985-01-30 Mb Group Plc Multi-layer plastics structures and apparatus and methods for their manufacture
EP0132316A3 (en) * 1983-07-18 1986-08-13 Metal Box Public Limited Company Multi-layer plastics structures and apparatus and methods for their manufacture

Also Published As

Publication number Publication date
NL7001843A (en) 1970-09-14
DE2007963A1 (en) 1970-09-24
DE7106429U (en) 1971-07-01
GB1309012A (en) 1973-03-07
FR2037174B1 (en) 1974-03-15
BE747056A (en) 1970-09-09
FR2037174A1 (en) 1970-12-31

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PLNP Patent lapsed through nonpayment of renewal fees