US20050112308A1 - Multilayered plastic container - Google Patents
Multilayered plastic container Download PDFInfo
- Publication number
- US20050112308A1 US20050112308A1 US11/023,715 US2371504A US2005112308A1 US 20050112308 A1 US20050112308 A1 US 20050112308A1 US 2371504 A US2371504 A US 2371504A US 2005112308 A1 US2005112308 A1 US 2005112308A1
- Authority
- US
- United States
- Prior art keywords
- layer
- container
- plastic
- innermost
- process according
- 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.)
- Abandoned
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Classifications
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D1/00—Containers having bodies formed in one piece, e.g. by casting metallic material, by moulding plastics, by blowing vitreous material, by throwing ceramic material, by moulding pulped fibrous material, by deep-drawing operations performed on sheet material
- B65D1/02—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents
- B65D1/0207—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features
- B65D1/0215—Bottles or similar containers with necks or like restricted apertures, designed for pouring contents characterised by material, e.g. composition, physical features multilayered
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/24—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants
- B65D81/26—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators
- B65D81/266—Adaptations for preventing deterioration or decay of contents; Applications to the container or packaging material of food preservatives, fungicides, pesticides or animal repellants with provision for draining away, or absorbing, or removing by ventilation, fluids, e.g. exuded by contents; Applications of corrosion inhibitors or desiccators for absorbing gases, e.g. oxygen absorbers or desiccants
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/08—Injection moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/06—Making preforms by moulding the material
- B29B11/10—Extrusion moulding
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29B—PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS
- B29B11/00—Making preforms
- B29B11/14—Making preforms characterised by structure or composition
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/0715—Preforms or parisons characterised by their configuration the preform having one end closed
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/073—Preforms or parisons characterised by their configuration having variable diameter
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0772—Closure retaining means
- B29C2949/0773—Threads
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/076—Preforms or parisons characterised by their configuration characterised by the shape
- B29C2949/0768—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform
- B29C2949/077—Preforms or parisons characterised by their configuration characterised by the shape characterised by the shape of specific parts of preform characterised by the neck
- B29C2949/0777—Tamper-evident band retaining ring
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/07—Preforms or parisons characterised by their configuration
- B29C2949/081—Specified dimensions, e.g. values or ranges
- B29C2949/0811—Wall thickness
- B29C2949/0819—Wall thickness of a layer
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3008—Preforms or parisons made of several components at neck portion
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3012—Preforms or parisons made of several components at flange portion
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3016—Preforms or parisons made of several components at body portion
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/302—Preforms or parisons made of several components at bottom portion
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3024—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique
- B29C2949/3026—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components
- B29C2949/3028—Preforms or parisons made of several components characterised by the number of components or by the manufacturing technique having two or more components having three or more components
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3032—Preforms or parisons made of several components having components being injected
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- 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
- B29C2949/00—Indexing scheme relating to blow-moulding
- B29C2949/30—Preforms or parisons made of several components
- B29C2949/3041—Preforms or parisons made of several components having components being extruded
- B29C2949/3042—Preforms or parisons made of several components having components being extruded having two or more components being extruded
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- 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
- B29C49/00—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor
- B29C49/071—Preforms or parisons characterised by their configuration, e.g. geometry, dimensions or physical properties
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/06—PE, i.e. polyethylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/04—Polymers of ethylene
- B29K2023/08—Copolymers of ethylene
- B29K2023/086—EVOH, i.e. ethylene vinyl alcohol copolymer
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2023/00—Use of polyalkenes or derivatives thereof as moulding material
- B29K2023/10—Polymers of propylene
- B29K2023/12—PP, i.e. polypropylene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2025/00—Use of polymers of vinyl-aromatic compounds or derivatives thereof as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/06—PVC, i.e. polyvinylchloride
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2027/00—Use of polyvinylhalogenides or derivatives thereof as moulding material
- B29K2027/12—Use of polyvinylhalogenides or derivatives thereof as moulding material containing fluorine
- B29K2027/18—PTFE, i.e. polytetrafluorethene, e.g. ePTFE, i.e. expanded polytetrafluorethene
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2055/00—Use of specific polymers obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in a single one of main groups B29K2023/00 - B29K2049/00, e.g. having a vinyl group, as moulding material
- B29K2055/02—ABS polymers, i.e. acrylonitrile-butadiene-styrene polymers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2067/00—Use of polyesters or derivatives thereof, as moulding material
- B29K2067/006—PBT, i.e. polybutylene terephthalate
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2069/00—Use of PC, i.e. polycarbonates or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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- B29K2081/00—Use of polymers having sulfur, with or without nitrogen, oxygen or carbon only, in the main chain, as moulding material
- B29K2081/06—PSU, i.e. polysulfones; PES, i.e. polyethersulfones or derivatives thereof
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/25—Solid
- B29K2105/253—Preform
- B29K2105/258—Tubular
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/26—Scrap or recycled material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
- B29K2995/0037—Other properties
- B29K2995/0065—Permeability to gases
- B29K2995/0067—Permeability to gases non-permeable
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
- B29L2031/00—Other particular articles
- B29L2031/712—Containers; Packaging elements or accessories, Packages
- B29L2031/7158—Bottles
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- 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
- B32B2272/00—Resin or rubber layer comprising scrap, waste or recycling material
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- B—PERFORMING OPERATIONS; TRANSPORTING
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- B32B2305/00—Condition, form or state of the layers or laminate
- B32B2305/70—Scrap or recycled material
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- 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
- B32B2307/74—Oxygen absorber
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- 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
- B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
- B32B37/14—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers
- B32B37/15—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state
- B32B37/153—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding characterised by the properties of the layers with at least one layer being manufactured and immediately laminated before reaching its stable state, e.g. in which a layer is extruded and laminated while in semi-molten state at least one layer is extruded and immediately laminated while in semi-molten state
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
- Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
Definitions
- the present invention relates to multi-layered containers. More particularly, the present invention relates to blow molded multi-layered plastic containers.
- Multi-layered plastic containers are commonly used for packaging items in a wide range of fields, including food and beverage, medicine, health and beauty, and home products. Plastic containers are known for being easily molded, cost competitive, lightweight, and generally suitable for many applications. Multi-layered containers provide the added benefit of being able to use different materials in each of the layers, wherein each material has a specific property adapted to perform a desired function.
- plastic containers may permit low molecular gases, such as oxygen and carbon dioxide, to slowly permeate through their physical configurations, the use of plastic containers sometimes proves to be less desirable when compared to containers formed from other less permeable materials, such as metal or glass.
- the shelf life of the product contents is directly related to the package's ability to effectively address such molecular permeation.
- carbonated beverages such as beer
- oxygen in the atmosphere surrounding the container can gradually permeate inwardly through the plastic walls of the container to reach inside of the container and deteriorate the contents.
- carbon dioxide gas associated with the contents may permeate outwardly through the plastic walls of the container until eventually being released on the outside, causing the carbonated beverage to lose some of its flavor and possibly become “flat”.
- plastic container manufacturers have utilized various techniques to reduce or eliminate the absorption and/or permeability of such gases.
- Some of the more common techniques include: increasing the thickness of all or portions of the walls of the container; incorporating one or more barrier layers into the wall structure; including oxygen-scavenging or reacting materials within the walls of the containers; and applying various coatings to the internal and/or external surface of the container.
- a number of conventional barrier and/or scavenger materials will not effectively curtail the permeation of both oxygen and carbon dioxide over extended periods of time.
- there are usually other practical concerns associated with most conventional techniques most commonly, increased material costs and/or production inefficiencies.
- multi-layered plastic containers it is desirable for multi-layered plastic containers to effectively utilize an oxygen-scavenging material. However, these materials may not be approved to come into contact with food or beverage if the container is used to hold these items.
- the innermost plastic layer would be a plastic material that is approved for contact with the food or beverage contents of the container.
- an oxygen scavenger may start to react prior to filling of the container, limiting the storage life of empty containers in inventory (not filled).
- a three or more layered plastic container is provided, wherein
- a three layered plastic container with an innermost layer of polyethylene terephthalate (PET) that is 0.5 mils thick, and with an intermediate plastic layer containing an oxygen scavenging material can be stored in a warehouse in the unfilled condition for at least six (6) weeks without the oxygen scavenging material beginning to react with oxygen.
- PET polyethylene terephthalate
- the oxygen scavenging material will be fully effective to protect the product.
- the innermost layer may be thicker if longer protection times are desired in the unfilled condition, and thinner if shorter protection times are desired.
- the process of the present invention comprises:
- FIG. 1 is an elevational view of a preform for forming a container in accordance with the present invention
- FIGS. 1A, 1B and 1 C are enlarged cross-sectional views of various areas of the preform of FIG. 1 ;
- FIG. 2 is an elevational view of a container of the present invention.
- FIGS. 2A, 2B and 2 C are enlarged cross-sectional views of various areas of the container of FIG. 2 .
- the molded innermost plastic layer is comprised of a thermoplastic material.
- the following resins are representative of resins that may be used as plastic materials for the innermost layer: polyethylene, polypropylene, polystyrene, cycloolefin copolymer, polyethylene terephthalate, polyethylene naphthalate, ethylene-(vinyl alcohol) copolymer, poly-4-methylpentene-1, poly(methyl methacrylate), acrylonitrile, polyvinyl chloride, polyvinylidene chloride, styrene-acrylonitrile, acrylonitrile-butadiene-styrene, polyamide, polyacetal, polycarbonate, polybutylene terephthalate, ionomer, polysulfone, polytetra-fluoroethylene, and the like.
- the innermost layer should be formed from resins approved for contact with food products, as virgin polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and/or blends of polyethylene terephthalate or polyethylene naphthalate.
- PET polyethylene terephthalate
- PEN polyethylene naphthalate
- other thermoplastic resins approved for contact with food products may also be used.
- the molded outermost layer may be any desired plastic material, such as those set out hereinabove.
- the molded outermost layer includes recycled plastic material, including the plastics set forth above, but is preferably formed from recycled polyethylene terephthalate.
- the invention is not limited to a particular type of recycled plastic and other recycled plastic materials may be used. Moreover, any desired amount of recycled plastic material may be used in the outermost layer, for example, at least five (5) percent, at least forty (40) percent, or at least ninety (90) percent. Further, the outermost layer desirably comprises at least 40% by weight of the total weight of the container, but can comprise at least 85% by weight of the total weight of the container.
- the outermost layer generally has a wall thickness, taken along its vertical length, that is in the range of 3 to 23 mils (0.1524 mm to 0.5842 mm). Moreover, the thicknesses of each layer can be separately and independently varied along their vertical length, as desired.
- the intermediate layer is a plastic layer that contains an oxygen scavenging material.
- Oxygen scavenging materials are well known and include materials marketed for such a purpose by several large oil companies and resin manufacturers. A specific example of such a material is marketed under the trade name AMOSORB and is commercially available from the Amoco Corporation.
- Polyolefin oligomer segments are prepared for copolycondensation by first functionalizing the polyolefin oligomer segments with end groups capable of entering into polycondensation reactions The polyolefin oligomers are, in effect, addition polymers. Functionalization of the polyolefin oligomers with end groups affords a convenient method for incorporation of addition polymer segments into a copolycondensate.
- a preferred polyolefin oligomer as an oxygen scavenger in the present invention is polybutadiene because it has good oxygen scavenging capacity and reacts quickly with oxygen especially in the presence of a transition metal catalyst, such as cobalt, and in the presence of benzophenone, or both cobalt and benzophenone.
- the intermediate layer can be made of or include a barrier material.
- the barrier material or layer is desirably an oxygen barrier and is preferably formed from PEN, saran and ethylene vinyl alcohol copolymers (EVOH) or acrylonitrile copolymers, such as Barex.
- saran is used in its normal commercial sense to contemplate polymers made for example by polymerizing vinylidene chloride and vinyl chloride or methyl acrylate. Additional monomers may be included as is well known. Vinylidene chloride polymers are the most commonly used, but other oxygen barrier materials are will known.
- the container of the present invention may be formed by any of several known processing techniques which permit the manufacture of a multi-layered blow molded plastic container having a plastic molded inner layer and a relatively thick molded plastic outer layer which may include recycled plastic, and an intermediate plastic layer, all as aforesaid.
- the multi-layered container is formed via a blow molding operation involving a multi-layered preform.
- the preform may include a neck flange, which is convenient for handling purposes, and outer threads to secure a closure.
- the preform may be produced by extrusion molding an inner and intermediate layer and injection molding an outer layer. Extrusion of the preform allows the manufacturer to produce thinner inner and/or intermediate layers of controlled thicknesses. Further, an extrusion or co-extrusion process permits the manufacturer to readily vary the thickness of material being extruded along the length of the extrudate.
- the multi-layered container can then be blow molded using conventional blow molding operations.
- FIG. 1 an elevational view of a preform, in accordance with the present invention, designated generally as 10 .
- Preform 10 preferably includes a threaded and flanged upper portion 12 , an angled intermediate portion 14 , a vertical intermediate portion 16 and a base portion 18 .
- preform 10 is adapted to be blow molded into a container in accordance with the present invention.
- preform 10 is preferably formed from three layers of material. These clearly show encircling innermost first layer 20 , encircling second intermediate layer 22 , and the third outermost layer of the preform, encircling outer layer 24 . As can be seen from FIGS. 1A-1C , the thicknesses of the layers may if desired vary in accordance with specific portions of preform 10 . Outer layer 24 desirably has increased thickness at threaded and flanged upper portion 12 . Innermost layer 20 also desirably may vary in thickness depending upon the portion of the bottle, i.e., threaded and flanged upper portion 12 , angled and vertical intermediate portions 14 and 16 , and base portion 18 .
- Innermost layer 20 and intermediate layer 22 are preferably coextruded via an extrusion process, and outer layer 24 is preferably formed onto the extruded layers via an injection molding process, which allows the formation of the threaded upper portion 12 .
- innermost layer 20 can be readily controllably adjusted in thickness based upon the functions to be performed by the various portions and especially to provide a desired degree of protection to the oxygen scavenger material in the intermediate layer.
- the intermediate layer 22 is preferably maintained at a constant thickness, but this also can be varied in thickness if desired.
- Variations in thickness of the inner layer are also desirable for reasons which include aesthetics, efficient material use and reduced costs, and variable strength requirements. Efficient material use is evident in innermost layer 20 at upper portion 12 , where innermost layer 20 is thinnest. Strength considerations are evident in base portion 18 , where additional support is required and as a result, innermost layer 20 may be thickest.
- container 58 is shown which is formed from preform 10 of FIG. 1 via a blow molding operation. Similar to the preform, container 58 desirably includes a threaded upper portion 60 , an angled intermediate portion 62 , a substantially vertical intermediate portion 64 and a base portion 66 , which is shown in the embodiment of FIG. 2 as a self-supporting base. Naturally, other base configurations may be used, as a footed base for example. As shown in FIGS. 2A-2C , container 58 also has three layers of material, each of which may have differing properties and relative thickness relationships.
- container 58 includes innermost layer 68 , central layer 70 and outer layer 72 . Because innermost layer 68 is not subject to blowing at the neck region in forming the container shape, the thickness ratios between the various portions of the container may differ from those of preform 10 . However, the thicknesses of the layers of the container may if desired vary in accordance with specific portions of the container in a manner after the thickness variations of the preform.
- Self-supporting base portion 66 is preferably comprised of a circumferential encircling member 74 , particularly a ring defining an annulus and an indented center positioned wall 75 , whose function is to sturdily support container 58 on a flat surface.
- Encircling member 74 forms the lower circumference of the container at the lower end 76 thereof.
- Indented wall 75 joins the inside portions of encircling member 74 and is located in the center of encircling member 74 .
- Encircling member 74 starts at the bottom 77 of container 58 and extends upwardly forming lower end 76 and is continuous with the inner and outer diameters of the container wall defined by layers 68 , 70 and 72 of container 58 . Due to the increased thickness of innermost layer 68 at the self-supporting base 66 , base 66 including encircling member 74 is substantially harder and less flexible than intermediate portions 62 and 64 providing increased support.
- container 58 shown in FIG. 2 are by way of example only and accordingly, a plurality of shapes with varying parts are contemplated, all of which have a layered structure similar to as discussed above.
- the container may contain greater than three layers if desired and the shape shown in FIG. 2 is exemplificative only.
Abstract
Description
- This application is based on Provisional U.S. Patent Application Ser. No. 60/392,006, filed Jun. 25, 2002.
- The present invention relates to multi-layered containers. More particularly, the present invention relates to blow molded multi-layered plastic containers.
- Multi-layered plastic containers are commonly used for packaging items in a wide range of fields, including food and beverage, medicine, health and beauty, and home products. Plastic containers are known for being easily molded, cost competitive, lightweight, and generally suitable for many applications. Multi-layered containers provide the added benefit of being able to use different materials in each of the layers, wherein each material has a specific property adapted to perform a desired function.
- Because plastic containers may permit low molecular gases, such as oxygen and carbon dioxide, to slowly permeate through their physical configurations, the use of plastic containers sometimes proves to be less desirable when compared to containers formed from other less permeable materials, such as metal or glass. In most applications, the shelf life of the product contents is directly related to the package's ability to effectively address such molecular permeation. In the case of carbonated beverages, such as beer, oxygen in the atmosphere surrounding the container can gradually permeate inwardly through the plastic walls of the container to reach inside of the container and deteriorate the contents. Likewise, carbon dioxide gas associated with the contents may permeate outwardly through the plastic walls of the container until eventually being released on the outside, causing the carbonated beverage to lose some of its flavor and possibly become “flat”.
- To address some of the foregoing concerns, plastic container manufacturers have utilized various techniques to reduce or eliminate the absorption and/or permeability of such gases. Some of the more common techniques include: increasing the thickness of all or portions of the walls of the container; incorporating one or more barrier layers into the wall structure; including oxygen-scavenging or reacting materials within the walls of the containers; and applying various coatings to the internal and/or external surface of the container. However, a number of conventional barrier and/or scavenger materials will not effectively curtail the permeation of both oxygen and carbon dioxide over extended periods of time. Moreover, there are usually other practical concerns associated with most conventional techniques, most commonly, increased material costs and/or production inefficiencies.
- In recent times, the use of plastics has become a significant social issue. Recycling has become an increasingly important environmental concern and a number of governments and regulatory authorities continue to address the matter. In a number of jurisdictions, legislation pertaining to minimum recycled plastic content and the collection, return, and reuse of plastic containers has either been considered or has already been enacted. For example, in the case of plastic containers used to hold consumable items, such as food items or beverages, regulations often require a certain content and minimum thickness of FDA approved material for the innermost layer that comes in contact with the contents. Conventional processes, such as co- or multiple-injection molding, are often limited as to the amount of recycled plastic that can be effectively incorporated into the structure of the container due to process limitations. Commonly, the amount of recycled content that can be effectively incorporated into conventional co-injection molded containers that are suitable for food contents is less than 40% of the total weight of the container.
- Therefore, a need exists in the industry for, and it is an object of the present invention to provide, an improved multi-layered plastic container including oxygen scavenging materials suitable for holding products such as carbonated beverages or other food products, and having a long shelf life.
- It is a further objective of the present invention to provide a multi-layered plastic container as aforesaid which may include desired levels of recycled material.
- It is a still further object of the present invention to provide a multi-layered plastic container as aforesaid which may be readily and conveniently prepared at a moderate cost.
- Further objects and advantages of the present invention will appear hereinbelow.
- In accordance with the present invention, the foregoing objects and advantages are readily obtained.
- It is desirable for multi-layered plastic containers to effectively utilize an oxygen-scavenging material. However, these materials may not be approved to come into contact with food or beverage if the container is used to hold these items. In a multi-layered container the innermost plastic layer would be a plastic material that is approved for contact with the food or beverage contents of the container.
- Moreover, after a container is manufactured, it often is not filled with food or beverage immediately. Naturally, one desires the oxygen scavenger material to begin working only after the container is filled. Disadvantageously, an oxygen scavenger may start to react prior to filling of the container, limiting the storage life of empty containers in inventory (not filled).
- In accordance with the present invention, a three or more layered plastic container is provided, wherein
-
- an innermost first layer is a plastic material, preferably approved for contact with food or beverage products,
- an intermediate second layer is a plastic material adjacent the first layer containing an oxygen scavenger material; and
- an outermost third layer is a plastic material, desirably containing recycled plastic,
wherein the thickness of the innermost layer is in the range of 0.1 to 3 mils and is controlled based on the desired shelf life of the container in the unfilled condition, i.e., the thicker the innermost layer in this range the greater the protection afforded the oxygen scavenger material.
- Thus, for example, it has been found that a three layered plastic container with an innermost layer of polyethylene terephthalate (PET) that is 0.5 mils thick, and with an intermediate plastic layer containing an oxygen scavenging material, can be stored in a warehouse in the unfilled condition for at least six (6) weeks without the oxygen scavenging material beginning to react with oxygen. When the container is thereafter filled with product, as for example, a beverage, the oxygen scavenging material will be fully effective to protect the product. Naturally, the innermost layer may be thicker if longer protection times are desired in the unfilled condition, and thinner if shorter protection times are desired.
- The process of the present invention comprises:
-
- forming a plastic container with three or more layers of plastic, with
- the innermost first layer being a plastic layer preferably approved for contact with food or beverage products,
- the intermediate second layer is a plastic layer adjacent the first layer containing at least one oxygen scavenger material, and
- the outermost third layer is a plastic layer, preferably containing recycled plastic,
including the step of controlling the thickness of the innermost layer in the range of 0.1 to 3 mils based on the desired shelf life of the container in the unfilled condition.
- Further features of the present invention will appear hereinbelow.
- The present invention will be more readily understandable from the following illustrative drawings, wherein:
-
FIG. 1 is an elevational view of a preform for forming a container in accordance with the present invention; -
FIGS. 1A, 1B and 1C are enlarged cross-sectional views of various areas of the preform ofFIG. 1 ; -
FIG. 2 is an elevational view of a container of the present invention; and -
FIGS. 2A, 2B and 2C are enlarged cross-sectional views of various areas of the container ofFIG. 2 . - The molded innermost plastic layer is comprised of a thermoplastic material. The following resins are representative of resins that may be used as plastic materials for the innermost layer: polyethylene, polypropylene, polystyrene, cycloolefin copolymer, polyethylene terephthalate, polyethylene naphthalate, ethylene-(vinyl alcohol) copolymer, poly-4-methylpentene-1, poly(methyl methacrylate), acrylonitrile, polyvinyl chloride, polyvinylidene chloride, styrene-acrylonitrile, acrylonitrile-butadiene-styrene, polyamide, polyacetal, polycarbonate, polybutylene terephthalate, ionomer, polysulfone, polytetra-fluoroethylene, and the like. When food product contents are involved, the innermost layer should be formed from resins approved for contact with food products, as virgin polyethylene terephthalate (PET), polyethylene naphthalate (PEN), and/or blends of polyethylene terephthalate or polyethylene naphthalate. However, other thermoplastic resins approved for contact with food products may also be used.
- The molded outermost layer may be any desired plastic material, such as those set out hereinabove.
- Desirably, the molded outermost layer includes recycled plastic material, including the plastics set forth above, but is preferably formed from recycled polyethylene terephthalate.
- However, the invention is not limited to a particular type of recycled plastic and other recycled plastic materials may be used. Moreover, any desired amount of recycled plastic material may be used in the outermost layer, for example, at least five (5) percent, at least forty (40) percent, or at least ninety (90) percent. Further, the outermost layer desirably comprises at least 40% by weight of the total weight of the container, but can comprise at least 85% by weight of the total weight of the container. The outermost layer generally has a wall thickness, taken along its vertical length, that is in the range of 3 to 23 mils (0.1524 mm to 0.5842 mm). Moreover, the thicknesses of each layer can be separately and independently varied along their vertical length, as desired.
- The intermediate layer is a plastic layer that contains an oxygen scavenging material. Oxygen scavenging materials are well known and include materials marketed for such a purpose by several large oil companies and resin manufacturers. A specific example of such a material is marketed under the trade name AMOSORB and is commercially available from the Amoco Corporation. Polyolefin oligomer segments are prepared for copolycondensation by first functionalizing the polyolefin oligomer segments with end groups capable of entering into polycondensation reactions The polyolefin oligomers are, in effect, addition polymers. Functionalization of the polyolefin oligomers with end groups affords a convenient method for incorporation of addition polymer segments into a copolycondensate. A preferred polyolefin oligomer as an oxygen scavenger in the present invention is polybutadiene because it has good oxygen scavenging capacity and reacts quickly with oxygen especially in the presence of a transition metal catalyst, such as cobalt, and in the presence of benzophenone, or both cobalt and benzophenone. Desirably, the intermediate layer can be made of or include a barrier material. The barrier material or layer is desirably an oxygen barrier and is preferably formed from PEN, saran and ethylene vinyl alcohol copolymers (EVOH) or acrylonitrile copolymers, such as Barex. The term saran is used in its normal commercial sense to contemplate polymers made for example by polymerizing vinylidene chloride and vinyl chloride or methyl acrylate. Additional monomers may be included as is well known. Vinylidene chloride polymers are the most commonly used, but other oxygen barrier materials are will known.
- Naturally, other layers may be provided as desired.
- The container of the present invention may be formed by any of several known processing techniques which permit the manufacture of a multi-layered blow molded plastic container having a plastic molded inner layer and a relatively thick molded plastic outer layer which may include recycled plastic, and an intermediate plastic layer, all as aforesaid. In a preferred embodiment, the multi-layered container is formed via a blow molding operation involving a multi-layered preform. Although not a required feature, the preform may include a neck flange, which is convenient for handling purposes, and outer threads to secure a closure. In a preferred embodiment, the preform may be produced by extrusion molding an inner and intermediate layer and injection molding an outer layer. Extrusion of the preform allows the manufacturer to produce thinner inner and/or intermediate layers of controlled thicknesses. Further, an extrusion or co-extrusion process permits the manufacturer to readily vary the thickness of material being extruded along the length of the extrudate. The multi-layered container can then be blow molded using conventional blow molding operations.
- Referring now to the drawings in detail, there is shown in
FIG. 1 an elevational view of a preform, in accordance with the present invention, designated generally as 10.Preform 10 preferably includes a threaded and flangedupper portion 12, an angledintermediate portion 14, a verticalintermediate portion 16 and abase portion 18. In the configuration shown inFIG. 1 , preform 10 is adapted to be blow molded into a container in accordance with the present invention. - Referring now to
FIGS. 1A, 1B & 1C, which show enlarged cross-sectional views of areas 1A, 1B and 1C, respectively ofFIG. 1 , preform 10 is preferably formed from three layers of material. These clearly show encircling innermostfirst layer 20, encircling secondintermediate layer 22, and the third outermost layer of the preform, encirclingouter layer 24. As can be seen fromFIGS. 1A-1C , the thicknesses of the layers may if desired vary in accordance with specific portions ofpreform 10.Outer layer 24 desirably has increased thickness at threaded and flangedupper portion 12.Innermost layer 20 also desirably may vary in thickness depending upon the portion of the bottle, i.e., threaded and flangedupper portion 12, angled and verticalintermediate portions base portion 18. -
Innermost layer 20 andintermediate layer 22 are preferably coextruded via an extrusion process, andouter layer 24 is preferably formed onto the extruded layers via an injection molding process, which allows the formation of the threadedupper portion 12. As a result of the extrusion process,innermost layer 20 can be readily controllably adjusted in thickness based upon the functions to be performed by the various portions and especially to provide a desired degree of protection to the oxygen scavenger material in the intermediate layer. - The
intermediate layer 22 is preferably maintained at a constant thickness, but this also can be varied in thickness if desired. - Variations in thickness of the inner layer are also desirable for reasons which include aesthetics, efficient material use and reduced costs, and variable strength requirements. Efficient material use is evident in
innermost layer 20 atupper portion 12, whereinnermost layer 20 is thinnest. Strength considerations are evident inbase portion 18, where additional support is required and as a result,innermost layer 20 may be thickest. - With reference now to
FIG. 2 , acontainer 58 is shown which is formed frompreform 10 ofFIG. 1 via a blow molding operation. Similar to the preform,container 58 desirably includes a threadedupper portion 60, an angledintermediate portion 62, a substantially verticalintermediate portion 64 and abase portion 66, which is shown in the embodiment ofFIG. 2 as a self-supporting base. Naturally, other base configurations may be used, as a footed base for example. As shown inFIGS. 2A-2C ,container 58 also has three layers of material, each of which may have differing properties and relative thickness relationships. - Referring to
FIGS. 2A-2C , which represent enlarged cross-sectional views of areas 2A, 2B and 2C, respectively, ofFIG. 2 ,container 58 includesinnermost layer 68,central layer 70 andouter layer 72. Becauseinnermost layer 68 is not subject to blowing at the neck region in forming the container shape, the thickness ratios between the various portions of the container may differ from those ofpreform 10. However, the thicknesses of the layers of the container may if desired vary in accordance with specific portions of the container in a manner after the thickness variations of the preform. - Self-supporting
base portion 66 is preferably comprised of acircumferential encircling member 74, particularly a ring defining an annulus and an indented center positioned wall 75, whose function is to sturdilysupport container 58 on a flat surface. Encirclingmember 74 forms the lower circumference of the container at thelower end 76 thereof. Indented wall 75 joins the inside portions of encirclingmember 74 and is located in the center of encirclingmember 74. Encirclingmember 74 starts at the bottom 77 ofcontainer 58 and extends upwardly forminglower end 76 and is continuous with the inner and outer diameters of the container wall defined bylayers container 58. Due to the increased thickness ofinnermost layer 68 at the self-supportingbase 66,base 66 including encirclingmember 74 is substantially harder and less flexible thanintermediate portions - The shape and parts of
container 58, shown inFIG. 2 are by way of example only and accordingly, a plurality of shapes with varying parts are contemplated, all of which have a layered structure similar to as discussed above. For example, the container may contain greater than three layers if desired and the shape shown inFIG. 2 is exemplificative only. - It is to be understood that the invention is not limited to the illustrations described and shown herein, which are deemed to be merely illustrative of the best modes of carrying out the invention, and which are susceptible of modification of form, size, arrangement of parts and details of operation. The invention rather is intended to encompass all such modifications which are within its spirit and scope.
Claims (9)
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US10/461,623 US20030235667A1 (en) | 2002-06-25 | 2003-06-13 | Multilayered plastic container |
US11/023,715 US20050112308A1 (en) | 2002-06-25 | 2004-12-28 | Multilayered plastic container |
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US20100032324A1 (en) * | 2008-08-11 | 2010-02-11 | Philip Morris Usa Inc. | Container with tactile surface |
US20110000802A1 (en) * | 2009-07-01 | 2011-01-06 | Philip Morris Usa Inc. | Tactile packaging for consumer goods |
US20110039848A1 (en) * | 2008-04-25 | 2011-02-17 | Hitoshi Fujita | Five-membered ring compound |
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KR100641348B1 (en) | 2005-06-03 | 2006-11-03 | 주식회사 케이씨텍 | Slurry for cmp and method of fabricating the same and method of polishing substrate |
US20070026173A1 (en) * | 2005-07-27 | 2007-02-01 | Owens-Illinois Healthcare Packaging Inc. | Multilayer containers and methods of manufacture |
DE102006037944A1 (en) * | 2005-09-01 | 2007-03-15 | Protechna S.A. | Transport and storage containers made of plastic |
US20070172612A1 (en) * | 2006-01-23 | 2007-07-26 | Plastipak Packaging, Inc. | Plastic container |
US10214312B2 (en) | 2006-03-06 | 2019-02-26 | Plastipak Packaging, Inc. | Lightweight plastic container and preform |
US8857637B2 (en) | 2006-03-06 | 2014-10-14 | Plastipak Packaging, Inc. | Lightweight plastic container and preform |
US20090036862A1 (en) * | 2007-08-01 | 2009-02-05 | Owens-Ilinois Healthcare Packaging Inc. | Multilayer plastic container and method of storing lyophilized products |
US9707732B2 (en) * | 2011-03-25 | 2017-07-18 | Amcor Limited | Barrier system for wide mouth containers |
US20130126462A1 (en) * | 2011-11-17 | 2013-05-23 | Wisys Technology Foundation, Inc. | Ultraviolet-Blocking Recyclable Plastic Container |
JP2018051902A (en) * | 2016-09-28 | 2018-04-05 | 東洋製罐グループホールディングス株式会社 | Multilayer structure molded body |
JP7085901B2 (en) * | 2018-05-31 | 2022-06-17 | 株式会社吉野工業所 | Extruded blow molded container |
US10894625B1 (en) | 2020-07-29 | 2021-01-19 | Verre Vert, Inc. | Lightweight polymer bottle for wine and spirits |
US20230049435A1 (en) * | 2021-08-13 | 2023-02-16 | Pepsico, Inc. | Multi-layer bottle |
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2003
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- 2003-06-18 CA CA2490240A patent/CA2490240C/en not_active Expired - Lifetime
- 2003-06-18 AU AU2003238289A patent/AU2003238289A1/en not_active Abandoned
- 2003-06-18 EP EP03737186A patent/EP1515895A4/en not_active Withdrawn
- 2003-06-18 WO PCT/US2003/019320 patent/WO2004000659A2/en not_active Application Discontinuation
-
2004
- 2004-12-28 US US11/023,715 patent/US20050112308A1/en not_active Abandoned
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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US5464106A (en) * | 1994-07-06 | 1995-11-07 | Plastipak Packaging, Inc. | Multi-layer containers |
US6365247B1 (en) * | 1996-09-23 | 2002-04-02 | Bp Corporation North America Inc. | Zero oxygen permeation plastic bottle for beer and other applications |
US6746769B2 (en) * | 1999-08-06 | 2004-06-08 | Plastipak Packaging, Inc. | Plastic container having a carbon-treated internal surface |
US6525123B1 (en) * | 2000-05-19 | 2003-02-25 | Chevron Phillips Chemical Company Lp | Compatible blend systems from ethylene vinyl alcohol and oxygen scavenging polymers |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20110039848A1 (en) * | 2008-04-25 | 2011-02-17 | Hitoshi Fujita | Five-membered ring compound |
US20100032324A1 (en) * | 2008-08-11 | 2010-02-11 | Philip Morris Usa Inc. | Container with tactile surface |
US20110000802A1 (en) * | 2009-07-01 | 2011-01-06 | Philip Morris Usa Inc. | Tactile packaging for consumer goods |
Also Published As
Publication number | Publication date |
---|---|
CA2490240A1 (en) | 2003-12-31 |
EP1515895A4 (en) | 2009-06-10 |
WO2004000659A3 (en) | 2004-02-26 |
WO2004000659A2 (en) | 2003-12-31 |
AU2003238289A8 (en) | 2004-01-06 |
US20030235667A1 (en) | 2003-12-25 |
CA2490240C (en) | 2010-09-14 |
EP1515895A2 (en) | 2005-03-23 |
AU2003238289A1 (en) | 2004-01-06 |
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Legal Events
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AS | Assignment |
Owner name: COMERICA BANK, AS AGENT, MICHIGAN Free format text: AMENDED AND RESTATED SECURITY AGREEMENT;ASSIGNORS:PLASTIPAK HOLDINGS, INC.;PLASTIPAK PACKAGING, INC.;WHITELINE EXPRESS, LTD.;AND OTHERS;REEL/FRAME:016418/0001 Effective date: 20050128 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |
|
AS | Assignment |
Owner name: PLASTIPAK HOLDINGS, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:COMERICA BANK, AS AGENT;REEL/FRAME:044485/0515 Effective date: 20171012 Owner name: WHITELINE EXPRESS, LTD., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:COMERICA BANK, AS AGENT;REEL/FRAME:044485/0515 Effective date: 20171012 Owner name: PLASTIPAK PACKAGING, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:COMERICA BANK, AS AGENT;REEL/FRAME:044485/0515 Effective date: 20171012 Owner name: TABB REALTY, LLC, MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:COMERICA BANK, AS AGENT;REEL/FRAME:044485/0515 Effective date: 20171012 Owner name: CLEAN TECH, INC., MICHIGAN Free format text: RELEASE BY SECURED PARTY;ASSIGNOR:COMERICA BANK, AS AGENT;REEL/FRAME:044485/0515 Effective date: 20171012 |