GB1309012A - Extrusion die - Google Patents

Extrusion die

Info

Publication number
GB1309012A
GB1309012A GB996172A GB996170A GB1309012A GB 1309012 A GB1309012 A GB 1309012A GB 996172 A GB996172 A GB 996172A GB 996170 A GB996170 A GB 996170A GB 1309012 A GB1309012 A GB 1309012A
Authority
GB
United Kingdom
Prior art keywords
laminar
layers
thickness
sheet
die
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
GB996172A
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 GB1309012A publication Critical patent/GB1309012A/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)
  • Extrusion Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Abstract

1309012 Extruding laminar plastics sheet DOW CHEMICAL CO 26 Feb 1970 [10 March 1969] 9961/72 Divided out of 1309011 Heading B5A The description and claims relate to the die of the parent Specification, wherein the polyolefin layer of greater thickness of the laminar extruded sheet, is divided in its plane into a number of layers subtantially equal in thickness to that of the other material layers, and then recombined into a single layer prior to combination with the other layers within the die; non-uniformity of layer thickness in the edge portions of the laminar sheet thereby being avoided.
GB996172A 1969-03-10 1970-02-26 Extrusion die Expired GB1309012A (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
GB1309012A true GB1309012A (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 After (1)

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

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)

Families Citing this family (10)

* 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
DE2734294A1 (en) * 1977-07-29 1979-02-08 Basf Ag LAMINATES
JPS56139544U (en) * 1980-03-19 1981-10-22
US4551365A (en) * 1981-10-23 1985-11-05 Composite Container Corporation Rigid coextruded sheet and container
FR2545040B1 (en) * 1983-04-27 1985-07-19 Solvay MULTI-LAYER THERMOPLASTIC STRUCTURES COMPRISING A VINYLIDENE FLUORIDE POLYMER LAYER LINKED TO AN ALPHA-OLEFIN POLYMER LAYER
GB2143471B (en) * 1983-07-18 1987-08-12 Metal Box Plc Multilayer plastics structures and apparatus and methods for their manufacture
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

Also Published As

Publication number Publication date
GB1309011A (en) 1973-03-07
DE2007963A1 (en) 1970-09-24
FR2037174B1 (en) 1974-03-15
BE747056A (en) 1970-09-09
NL7001843A (en) 1970-09-14
DE7106429U (en) 1971-07-01
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