TW296994B - - Google Patents

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Publication number
TW296994B
TW296994B TW83108348A TW83108348A TW296994B TW 296994 B TW296994 B TW 296994B TW 83108348 A TW83108348 A TW 83108348A TW 83108348 A TW83108348 A TW 83108348A TW 296994 B TW296994 B TW 296994B
Authority
TW
Taiwan
Prior art keywords
polyethylene terephthalate
inner layer
layer
preform
polyethylene
Prior art date
Application number
TW83108348A
Other languages
English (en)
Original Assignee
Plastipak Packaging Inc
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 Plastipak Packaging Inc filed Critical Plastipak Packaging Inc
Application granted granted Critical
Publication of TW296994B publication Critical patent/TW296994B/zh

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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
    • 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
    • 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
    • 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/14—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles
    • B29C45/14778—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor incorporating preformed parts or layers, e.g. injection moulding around inserts or for coating articles the article consisting of a material with particular properties, e.g. porous, brittle
    • 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
    • B29C49/0005—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material
    • 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
    • B29C49/02—Combined blow-moulding and manufacture of the preform or the parison
    • 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
    • B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • 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
    • B29C2949/3048—Preforms or parisons made of several components having components being thermoformed
    • 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
    • B29C2949/3048—Preforms or parisons made of several components having components being thermoformed
    • B29C2949/3051—Preforms or parisons made of several components having components being thermoformed having two or more components being thermoformed
    • 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
    • B29C2949/3064—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062
    • B29C2949/3074—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating
    • B29C2949/3076—Preforms or parisons made of several components having at least one components being applied using techniques not covered by B29C2949/3032 - B29C2949/3062 said at least one component obtained by coating on the inside
    • 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
    • B29C49/42—Component parts, details or accessories; Auxiliary operations
    • B29C49/64—Heating or cooling preforms, parisons or blown articles
    • B29C49/6604—Thermal conditioning of the blown article
    • B29C49/6605—Heating the article, e.g. for hot fill
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/02—Combined thermoforming and manufacture of the preform
    • 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
    • B29C51/00—Shaping by thermoforming, i.e. shaping sheets or sheet like preforms after heating, e.g. shaping sheets in matched moulds or by deep-drawing; Apparatus therefor
    • B29C51/08—Deep drawing or matched-mould forming, i.e. using mechanical means only
    • 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
    • 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
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • 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
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/25—Solid
    • B29K2105/253—Preform
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
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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
    • 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
    • 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
    • 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
    • B29K2995/00—Properties of moulding materials, reinforcements, fillers, preformed parts or moulds
    • B29K2995/0037—Other properties
    • B29K2995/0068—Permeability to liquids; Adsorption
    • B29K2995/0069—Permeability to liquids; Adsorption non-permeable
    • 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
    • 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
    • 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
    • B32B2367/00—Polyesters, e.g. PET, i.e. polyethylene terephthalate
    • 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
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S264/00—Plastic and nonmetallic article shaping or treating: processes
    • Y10S264/911—Recycling consumer used articles or products
    • Y10S264/917—Recycling consumer used articles or products by blow molding material recycled from consumer used article or product
    • 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
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    • 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]
    • 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
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    • 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]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • 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
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    • Y10T428/13—Hollow or container type article [e.g., tube, vase, etc.]
    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/1379—Contains vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit
    • Y10T428/1383—Vapor or gas barrier, polymer derived from vinyl chloride or vinylidene chloride, or polymer containing a vinyl alcohol unit is sandwiched between layers [continuous layer]
    • 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
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    • Y10T428/1352—Polymer or resin containing [i.e., natural or synthetic]
    • Y10T428/139—Open-ended, self-supporting conduit, cylinder, or tube-type article
    • Y10T428/1393—Multilayer [continuous layer]
    • 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
    • Y10T428/31504—Composite [nonstructural laminate]
    • Y10T428/31786—Of polyester [e.g., alkyd, etc.]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Injection Moulding Of Plastics Or The Like (AREA)
  • Laminated Bodies (AREA)

Description

經濟部中央標準局貝工消費合作杜印製 五、發明说明（1 ) 本發明係關於一種用於塑料吹塑法之多層預塑坯及一 種用以製造該預塑坯之方法。 塑料吹塑法之執行傳統偽藉從經擠塑之塑料提供一熱 塑料型坯或做為一預塑坯，其通常係由塑料注塑而得。通 常·此種預製坯偽由單一類型塑料組成，其經由一單一汽 口注入一模中。但是，亦曾有人嚐試提供多於一種塑料共 注入至一模中以提供有許多不同層之塑料。 頒給Bon is等人的美國專利第3 , 878,282號揭露一種用 於成形多層物件之方法，該多層物件持殊的排列成為一具 有許多不同層之預塑坯型的型坯=所涉及之方法偽藉由在 不同1的模中將該等不同層注塑，而在注入各層期間俱接在 同樣的内心軸上。 頒給Ota等人的美國專利第4,307 , 137號掲露一種用以 在聚對-酞酸乙二酯物件中形成一光學設計樣式之方法， 其中明確掲露該聚對-酞酸乙二酯物件做為一具有内部元 件及外部元件之吹塑預塑坯，該内部元件具有一開口，該 開口端界定了一螺紋蓋，該外部元件具有一與内部元件之 連接處，由螺紋蓋朝向預塑坯之封閉端。 頒給^1丨35〇11的美國專利第4,391,861號掲露一熱塑料 之預塑坯，且具有一二元件之内部裝配之結構，以及至少 一做為氣體屏障之中間層，亦掲露該外部元件可為先前被 使用過及再處理過之材料。 頒給Nohara的美國專利第4,646,925號掲露一用於拉 伸發泡之多層預塑坯，以形成一具有内層及外層之瓶，該 -4 - (請先閱讀背面之注意事項再4寫本頁) 線 本紙張尺度適用中國國家橾準（CNSjA4規格（210X 297公釐） 經濟部中央標率局貝工消费合作社印製 A7 _ B7 ___五、發明説明（2 ) 内層與外層具有一連接處，該連接處位在由該預塑坯之開 口端處之蓋螺紋朝向該預塑坯之封閉端處。該預塑坯亦包 括一氣體屛障介於内層與外層之間。 美國專利第5, 102 , 705號掲露一由聚對-酞酸乙二酯樹 脂做成的瓶，如同所掲露的*其傜以限制氣體滲透度及X-光透射之方式高度地延伸一預塑坯。 在過去曾有許多嚐試，例如前述N i lsson專利中利用 後消費者再循環之塑料用於塑料吹塑，因為此種再使用減 少了額外的土地掩埋，在製造新的産品時同時保存了自然 資源。此種先前的嚐試己利用注塑或擠塑，其必定限制了 後消費者再循環之塑料可以被利用的量，因為相當薄壁之 用於塑料吹塑法之預塑坯很難注塑或擠塑。至今所用過之 後消費者再循環塑料的最大量約為預塑坯總重量之50%重 量。 吹塑法先前亦被做過，利用一先前由薄膜，即薄片塑 料，熱形成之預塑坯，該薄膜在注塑一外保護層之前提供 一溼氣及/或氧氣屏障。在熱形成之後•所形成之薄禊經 修整，然後外層在熱形成之塑料週圍注塑，之後該完成之 預塑坯被吹塑以提供最終之容器。 目前商業上所利用用以防止氣體穿透注塑之容器之主 要氣髏屏障為乙基乙烯醇，其可被浸潤、噴射或塗刷，以 及與塑料樹脂共注入。乙基乙烯醇之一缺點在於其必須完 全被預塑坯之塑料包覆，否則容易自空氣中吸收水氣，而 降低了其在防止氣體穿透該容器之功能上的能力。 (.請先閱讀背面之注意事項.C"寫本頁) 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 0
經濟部中央揉準局貝工消費合作杜印製 B7__ 五、發明説明（3 ) 本發明之一目的為提供一改良之用於塑料吹塑法之多 層預塑坯。 在執行上述目的時，該甩於塑料吹塑法之多層預塑坯 具有一聚萘酸乙二酯内層以提供一氣體屏障。該預塑坯亦 具有一聚對-酞酸乙二酯之注塑外層，當預塑玨吹塑成為 一容器時，由於聚萘酸乙二酯内層提供之氣體屏障，其具 有較低之氣體穿透率。 用於塑料吹塑法之多層預塑坯可由主要僅由聚祭酸乙 二酯構或聚萘酸乙二酯與另一樹脂之混合物構成之内層而 建構而成。可使用之該另一樹脂可為聚烯烴、聚醯胺、聚 磺酸酯、聚酯醯胺、聚酯及這些樹脂之混合物。更詳細地 ，該另一樹脂可為聚對-酞酸乙二酯，該外層亦由該聚對-酞酸乙二酯注塑而成。使用該另一樹脂雖然稍徹降低内層 之氣體屏障性質，但可降低使用聚禁酸乙二酯之量，其實 質上比聚對-酞酸乙二酯及其它樹脂更貴。 在一實施例之預塑坯之構造中，聚對-酞酸乙二酯外 層為由未經使用之聚對-酞酸乙二酯注塑而成。在此實施 例中，聚萘酸乙二酯内層與未經使用之聚對-酞酸乙二酯 外層彼此之間有一直接之界面。 在該預塑坯之其它黃施例中，外層係由後消費者再循 環之聚對-酞酸乙二酯注塑而成。此實施例亦掲露具有一 另一未經使用之聚對-酞酸乙二酯内層，其與聚萘酸乙二 酯内層合作以將該後消費者再循環之聚對-酞酸乙二酯外 層與該由預塑坏吹塑之容器之内容物分開。在此種實施例 本紙張尺度適用中國國家標準（CNS ) Α4規格（210X297公釐） ---,-------裝----f--訂------.^ {請先閱讀背面之注意事項再填寫本頁) 經濟部中央樣準局貝工消费合作社印製 A 7 B7 五、發明説明（4 ) 中，該另一未經使用之聚對-酞酸乙二酯内層位在聚萘酸 乙二酯内層與後消費者再循環之之聚對-酞酸乙二酯外層 之間。在另一此種實施例中，該聚禁酸乙二酯内層位在未 經使用之聚對-酞酸乙二酯内層與後消費者再循環之聚對-酞酸乙二酯外層之間。 本發明另一目的為提供一用以製造用於塑料吹塑法之 多層預塑坯之改良方法。 在執行上述目的時，用以製造用於塑料吹塑之多層預 塑坯之改良方法係藉由下述而執行，卽熱形成一Η聚禁酸 乙二酯以提供一做為氣體屏障之内層。聚對-酞酸乙二酯 之注塑係在該聚祭酸乙二酯内層之週圍執行，當該預塑坯 吹塑形成一容器後，該聚萘酸乙二酯内層限制了氣鱧穿過 聚對-酞酸乙二酯外層。 在本發明之一種實施態樣中，該外層之注塑係以未經 使用之聚對-酞酸乙二酯來做，其與聚萘酸乙二酯内層有 一直接接觸的界面。 該方法之其它實施態樣偽利用一片未經使用之聚對-酞酸乙二酯來做以提供另一内層，其與聚萘酸乙二酯内層 有一直接接觸的界面，且隨後利用一後消費者再循環之聚 對-酞酸乙二酯在内層週圍執行注塑。該聚禁酸乙二酯及 未經使用之聚對-酤酸乙二酯板片較佳偽同時被熱形成而 成。該聚禁酸乙二酯及未經使用之聚對-酞酸乙二酯板片 最佳像一起被蓮送以注塑模，以供該後消費者再循環之聚 對-酞酸乙二酯之注塑。在一種實施態樣中，執行該熱形 本紙張尺度適用中國國家標率（CNS ) A4规格（210X297公釐） (請先閲讀背面之注意事項再填寫本頁) 裝· 訂
五、發明説明（5 ) 經濟部中央樣準局負工消費合作社印裝 成以提供一未經使用之聚對-酞酸乙二酯内層，介於聚萘 酸乙二酯内層與後消費者再循琛之聚對-酤酸乙二酯外層 之間。在另一實施態樣中，執行該熱形成以提供一聚萘酸 乙二酯内層，介於未經使用之聚對-酞酸乙二酯内層與後 消費者再循環之聚對-酞酸乙二酯外層之間。 本發明之目的，待徵及優點由以下之用以完成本發明 之最佳方式之詳細説明，並參考所附之圖，即非常明顯。 圖式簡蜚説明 第1圖為一由本發明之預塑坯形成之塑料吹塑之容器 之部分切割之側面圖； 第2圖為砍據本發明所建構之預塑坯之一實施例之截 面圖，其包括聚祭酸乙二酯内層及未經使用之聚對-酞酸 乙二酯外層； 第3圖為預塑坯之另一實施例之截面圖，該預塑坯包 含一聚禁酸乙二酯内層，另一未經使用之聚對-酞酸乙二 酯外層，以及一層後消費者再循環之注塑外層•該未經使 用之聚對-酞酸乙二酯内層位於聚萘酸乙二酯欠層與後消 費者再循環之聚對-1^酸乙二酯注塑外層之間； 第4圖為預塑坯之另一實施例之截面圖，其包括一聚 萘酸乙二酯内層|另一未經使用之聚對-酞酸乙二酯内層 ，以及一後消費者再循環之聚對-酞酸乙二酯注塑外層， 該聚萘酸乙二酯内層位於未經使用之聚對-酞酸乙二酯内 層與後消費者再循環之聚對-酞酸乙二酯注塑外層之間； 第5圖說明藉熱形成及其後之注塑以製造第2画之預 本紙張尺度適用中國國家標準（CNS ) A4規格（210X297公釐） 1 I 裝—— I 訂 I 康 (請先閱讀背面之注意事項再填寫本頁)
經濟部中央標準局員工消费合作社印製 五、發明説明（6 ) 塑坯實施例之方法，； 第6圖說明藉熱形成及其後之注塑以製造第3圖及第 4圖之預塑坯實施例之方法，； 第7圖説明第6圖中用以製造第3圖之預塑坯實施例 之方法之執行方式*其中該聚祭酸乙二酯内層位於未經使 用之聚對-酞酸乙二酯内層之内側；及 第8圖為說明第6圖中用以製造第4圖之預塑坯實施 例之方法之執行方式之圖，其中該未經使用之聚對-酞酸 乙二酯内層位於聚萘酸乙二酯内層之内侧。 元伴绾號說明 10 容器 38 板片 12 圓筒體部分 40 加熱器 14 端蓋 42 滾筒 16 螺紋 44 修整座 18 可自立之基座結構 46 注塑機 20 足部 48 板片 22 肋部 50 模具 24 中央軸 52 下方模製元件 26 . 預塑坯 54 上方模製元件 28 内層 56 箭頭 30 外層 58 箭頭 32 内層 60 下方修整元件 34 裝置 62 上方修整元件 36 熱形成座 64 箭頭 Q - 本紙張尺度遑用中國國家橾率（CNS ) Α4说格（210Χ 297公釐） (請先閱讀背面之注意ί項-?.寫本頁) *r
五、發明説明（7 ) 66 箭頭 70 真空通道 68 銳利的切割機 72 起勤器 經濟部中央樣準局員工消费合作社印製 參考圖式第1圖，一塑料吹塑之容器》其概略以10表 示，由依據本發明所建構之多層預塑坯吹塑，如以下更詳 細敘述者。該塑料吹塑之容器10包括一垂直延伸之圓筒體 部分12。該容器之上端蓋14與圓筒髏部分12之上端成一體 ，且包括一噴射口，其依所示具有一螺紋16,甩以鎖緊一 未顯示出之帽形瓶蓋。該容器亦包括一可自立的基座結構 18,其與圓茼體部分12成一體以封閉其下端。該可自立之 基座結構18更包括多數丨固向下凸出之中空的足部20 (只顯 示出一値），其相對於該圓筒體部分環繞著彼此間隔開來 。該可自立之基座結構18亦包括多數個彎曲之肋部22 (只 顯示出一値）其在該向下凸出之足部20之間環繞著彼此間 隔開來。該容器之該可自立之基座結構18亦包括一中央軸 24,該足部20及該彎曲之肋部22自該處作放射狀延伸，其 彼此呈環繞交替之關係。當然，應瞭解的是，雖然所顯示 之容器為具有足部及彎曲肋部之可自立型，其它不具足部 及彎曲肋部之可自立之容器以及具有用以支持之較低基座 杯之容器亦可由本發明如下述之預塑坯吹塑而成。 參考第2圖、第3圖及第4画，三個用於塑料吹塑之 多層預塑坯之較佳實施例26a、26b及26c，其等以具有較 低之封閉端及一上方開口端之垂直延伸之環形建構而成， 第1圖所示之容器10係由該預塑坯吹塑者。此吹塑較佳偽 -10 - 本紙張尺度適用中國國家橾準（CNS〉Α4规格（210Χ297公釐） (請先聞讀背面之注意事項％ 寫本頁) 、τ·
經濟部中央標準局負工消费合作杜印裝 五、發明説明（S ) 藉拉伸發泡成形而執行以提供容器壁雙軸之定向，以使得 具有較強之強度。雖然多層預塑坯26a、26b及26c具有不 同構造，如以下將更完整地敘述，各預塑坯具有一聚祭酸 乙二酯内層28以提供一氣體屏障，且亦具有聚對-肽酸乙 二酯注塑外層30，其當預塑坯被吹塑成為容器時，如上所 述，具有較低之氣髏穿透度，因為有聚萘酸乙二酯内層所 提供之氣體屏障。如以下將更完整地敍述，該聚祭酸乙二 酯内層28被熱形成，相較於注塑，其可提供一相當薄的壁 Ο 聚萘酸乙二酯有比聚對-肽酸乙二酯更大的防止氣體 穿透的能力，持別是對二氧化碩及氧，其中，相較於聚對 -酞酸乙二酯，分別只有約1/8左右及約1/5左右之氣體會 穿透聚萘酸乙二酯。亦可以提供聚禁酸乙二酯之拉伸吹塑 以使得其在所揭之多層預塑坯結構中與聚對-酞酸乙二酯 雙軸定向。甚且，應可瞭解的是，該聚萘酸乙二酯可波熱 填充，因此可用於食品加工或其它在Λ充時己加熱之内容 物之加工。 各値預塑坯之實施例26a、26b及26c可具有聚萘酸乙 二酯内層28，且該内層主要僅含有聚萘酸乙二酯或為聚禁 酸乙二酯與另一樹脂之混合物。所使用之該另一樹脂可為 聚烯烴、聚醯胺、聚磺酸酯、聚酯醯胺、聚酯及這些樹脂 之混合物。更詳言之，使用聚對-酞酸乙二酯，其為一種 聚酯，雖然些徹地減低了氣髏屛障性質，卻仍允許聚萘酸 乙二酯發揮氣體屏障之作用，而減低了所需要之聚萘酸乙 -11 - (請先閱讀背面之注意事項再4莴本頁) -装_ 本紙張尺度逋用中國國家橾準（CMS ) A4規格（210 X 297公釐）
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A7 £7_ 五、發明説明（9 ) 二酯之量，以使得使用過之容器得以再循環，而限制了容 器中非聚對-酤酸乙二酯之部分之量。此一容器中非聚對-酤酸乙二酯百分比之限制使得其歸靥於較精選之類別，成 為再循環之一部分中。更詳言之*就一待定類別來說，該 非聚對-酞酸乙二酯部分必須低於容器總重量之約1 1 /2重 詳細參考第2圖，該多層預塑坯26a具有由未經使用 之聚對-酞酸乙二酯注塑之聚對-酤酸乙二酯外層30。且此 實施中之預塑坯之該聚禁酸乙二酯内層28以及未經使用之 聚對-酞酸乙二酯外層30彼此之間具有一直接之界面表面 。此種構造，所用之聚祭酸乙二酯含量只要足夠提供所得 到之容器所需之氣體屏障性質即可。因此，聚萘酸乙二酯 之量可減至等合再循環類別所允許者。而且，因所得之容 器之端蓋14比容器其它部分厚，且外層30為未經使用之聚 對-酞酸乙二酯，該聚萘酸乙二酯内層28可伸至低於聚對-酞酸乙二酯外層30之上，而不會大量減低容器之氣體屏障 能力，卽仍使容器可用於食品或飮料。 參考第3圖及第4圖，預塑坯之各實施例26b及26c具 有由後消費者再循環之聚對-酞酸乙二酯注塑而得之外層 30。預塑坯之各實施例26b及26c亦包括另一未經使用之聚 對-酞酸乙二酯内層32,其與聚萘酸乙二酯内層28共同將 後消費者再循環之聚對-酞酸乙二酯外層30與由該預塑坯 吹塑之容器之内容物分開。在第3圖之預塑坯實施例26中 ，該另一未經使用之聚對-酞酸乙二酯内層32位於聚.祭酸 -12 - 本紙張尺度適用中國國家橾準（CNS > A4規格（210X297公釐} ---·------^------訂------ΙΛ. (請先閱讀背面之注意事項再填寫本頁) 經濟部中夬樣準局男工消費合作社印製 經濟部中央樣準局負工消費合作社印裝 A7 B7 五、發明説明（10 ) 乙二酯内層28與後消費者再循環之聚對-酞酸乙二酯外層 30之間。在第4圖之預塑坯之實施例26c中，該聚萘酸乙 二酯内層28位於該未經使用之聚對-酞酸乙二酯内層32與 後消費者再循環之聚對-酞酸乙二酯外層30之間。該另一 未經使用之聚對-驮酸乙二酯内層32與該聚萘酸乙二酯内 層28之共同使用於第2圖及第3圖之預塑坯實施例中使得 能使用最少量之聚萘酸乙二酯以提供所需之氣體屏障，而 仍提供與後消費者再循環之聚對-酞酸乙二酯外層30之間 之壁厚度以符合代理商所制定之由再循環樹脂所裂成之容 器之標準。 參考第5圖及第6圖，裝置34a及34b，c分別操作以 執行製造用於塑料吹塑之多層預塑坯之方法，如第2圖實 施例26 a以及第3_及第4圖實施例26 b及26c所示者。更 詳言之’裝置34a及34b，c各實施例包括一熱形成座36用 以熱形成一聚萘酸乙二酯板片38以提供聚萘酸乙二酯内層 28，具有縱長之環形溝造，具有封閉端及開口端，如前關 於第2至4圖所述。適當之加熱器40加熱聚萘酸乙二酯板 片28 ’其在熱形成座36上熱形成之前，本質上為一具有所 需厚度之薄膜。滾筒42將聚萘酸乙二酯板片38延著該裝置 由左向右移動，如所示者。在熱形成之後，以下將更完整 敘述該熱形成，該聚禁酸乙二酯板片38被移至一修整座44 ，在該處，該聚萘酸乙二酯内層28之上端被從板片之剩餘 部分切下來*以進行後缠之蓮送至一注塑機46 ,如以下所 述。之後，聚對-酞酸乙二酯外層之注塑偽在聚萘酸乙二 -13 - 本紙張尺度適用中國國家樣準（CNS ) A4規格（210X 297公釐） ^^^^1 Bm ivn · Hal ff^m i a—·^— 突 T 口 (請先閲讀背面之注意事項再填寫本頁)
五、發明説明（11 ) 經濟部中央標準局貝工消費合作杜印製 酯内層週圍執行，如前所述，當所得之預塑坯被吹塑成一 容器時，其限制了氣體之穿透該聚對-酤酸乙二酯外層。 裝置34a之使用，如第5圖所示，傑以聚禁酸乙二酯 板Η 38其本身在熱形成座36上熱形成，然後在修整座44上 被修整以及被蓮送至注塑機46,在此處聚禁酸乙二酯外層 被注塑。更詳細地，為了保持舞可能少量的聚禁酸乙二醋 成為該預塑坯之一部分，較佳地，該裝置34a由未經使用 之聚對-酞酸乙二酯來注塑外層30以執行本方法。 装置34b，c，如第6圖所示，偽用來製造第3圖所示 之預塑坯26b或第4圖所示之實施例26c，藉熱形成另一未 經使用之聚對-肽酸乙二酯板片48以提供另一内層32，其 與聚萘酸乙二酯内層28有一直接之界面表面，以使得後缠 之注塑偽圍箸内層而執行*且可利用後消費者再循環之聚 對-酞酸乙二酯而在容器内容物與該再循環之塑料之間仍 具有所需之厚度。更詳言之，聚祭酸乙二酯板Η 38及未經 使用之聚對-酞酸乙二酯板片48傜在熱形成座36上同時熱 形成。之後，該熱形成之聚萘酸乙二酯與未經使用之聚對 -酞酸乙二酯板片3δ及48被一起運送至注塑機46之模具50 以供該後消費者再循環之聚對-酞酸乙二酯之注塑而提供 該外層30。 第6圖所示之装置34b，c之使用傜如所説明的，聚禁 酸乙二酯板Η 38置於未經使用之聚對-酞酸乙二酯板片之 上*亦如第7圖所示，以使得熱形成被執行以提供未經使 用之聚對-酞酸乙二酯内層32 ·介於聚禁酸乙二酯内層28 -14 - 本紙張尺度逋用中國國家標準（CNS ) Α4规格（210 X 29"7公釐） (請先閲讀背面之注意事項再填寫本頁) -裝
經濟部中央橾準局貝工消費合作社印製 五、發明説明（l2 ) 與後消費者再循環之聚對-酞酸乙二酯外層30之間，依據 第3圖所示之預塑坯實施例26b。 第6圖所示之裝置34b，c之使用為將聚萘酸乙二酯板 Η 38與未經使用之聚對-酞酸乙二酯板片48之艏別位置反 轉，如第8圖所示*以使得該熱形成之執行提供聚禁酸乙 二酯内層28，介於未經使用之聚對-酞酸乙二酯内層32與 後消費者再循環之聚對-酞酸乙二酯外層30之間。 —起參考第5圖及第6圖，熱形成座36具有下方及上 方模製元件52及54，其在開口虛線所指的位置以及封閉實 線所指之位置之間，沿著箭頭56及58之方向移動以執行熱 形成，然後釋放該熱形成之内層以供修整或後鑛之注塑。 應注意的是，為求效率，該等多層預塑坯内層偽同時熱形 成，修整，然後注塑。更詳言之，當數目多，利於有效的 蓮送至該持殊注塑機46，而在該處多層模被注塑，該熱形 成最有效率。各個熱形成贈環開始時，下方及上方模製元 件52及54在其虛線所指之位置，當這些元件向各其它元件 移動時將該經加熱之薄片本身形成聚禁酸乙二酯内層28， 如第5圖所示，或與另一未經使用之聚對-酞酸乙二酯内 層32—起，如第6圖所示，較佳地，在每一如上述之往返 時發生多次之形成。 再參考第5圖及第6圖，在如前述之熱形成之後，聚 萘酸乙二酯薄片38本身，如第5圖所示，或其與未經使用 之聚對-酞酸乙二酯板片48，如第6圖所示，藉一相連之 滾茼42移動至修整座44，下方及上方修整元件60及62位於 -15 - 本紙張尺度適用中國國家橾準（CNS ) Α4規格（2丨ΟΧ297公釐） I —裝 I I I I-訂— I I 务 (請先閱讀背面之注意事項再蟻寫本頁)
經济部中央標準局員工消費合作社印装 五、發明説明（I3 ) 該處。這些下方及上方修整元件60及62如箭頭64及66所示 朝向及遠離彼此而移動，以使得其銳利的切割機6δ將各内 層之上方開口端自連结之板片之剩餘部份分離。該下方元 件60較佳地具有一真空通道70，由該通道抽真空以維持該 經修整之内層於該元件處，然後以一適當之起動器72將其 蓮送至注塑機44以將各内層定位於其模具50以供如前述之 聚對-酞酸乙二酯外層30之注塑， 聚對-酞酸乙二酯多層預塑坯26b及26c，分別示於第 3圖及第4圖，具有一後消費者再循環之聚對-酞酸乙二 酯外層30，其重量為大於預塑坯總重量之約75%，傳统之 預塑坯中最大量為約50%。在預塑坯26b及26c之較佳構造 中*後消費者再循環之聚對-酞酸乙二酯注塑外層30重量 為大於預塑坯總重量之約85%，較佳為預塑坯總重量之約 8 8-92%，極佳為預塑坯總重量之約90%。更詳言之，多 層預塑坯26b及26c之構造，其聚萘酸乙二酯内層28及未經 使用之聚對-酞酸乙二酯内層32皆為熱形成者，使得後消 費者再循環之聚對-酞酸乙二酯用於外層30之量比過去可 能達到之量更大。 雖然完成本發明之最佳方式已詳細地敘述了 >熟於此 技者將可知悉實施本發明之各種不同的替換方式，如下述 申請專利範圍所述者。 -16- 本紙張尺度適用中國國家標率（CNS ) Α4規格（210 X 297公釐） J.---------装------iT------β (請先閱讀背面之注意事項再填寫本頁)

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  1. 中請專利範圍 輕濟部中央棣率局負工消費合作社印製 D—用於塑料吹塑法之多層預塑坯，其包含： 一聚萘酸乙二酯内層，用以提供一氣髏屛障•及 一後消費者再循環之聚對-酞酸乙二酯之注塑外層，其 由於該聚萘酸乙二酯内層所提供之氣體屏障，當該預 塑坯被吹塑成為一容器時，具有較低之氣體穿透性。 2 .如申請專利範圍第1項之用於塑料吹塑法之多層預塑 坯，其中該内層本質上僅含聚禁酸乙二酯。 3· 5□申請專利範圍第1項之用於塑料吹塑法之多層預塑 坯，其中該内層為聚禁酸乙二酯與另一樹脂之混合物 0 4 ·如申請專利範圍第3項之用於塑料吹塑法之多層預塑 坯，其中該另一樹脂係選自下列所組成之組群中：聚 烴烯、聚醯胺、聚磺酸酯、聚酯醯胺、聚酯及這些樹 脂之組合。 5-如申請專利範圍第3項之用於塑料吹塑法之多層預塑 坯，其中該另一樹脂為聚對-酞酸乙二酯。 6 ·如申請專利範圍第丨項之用於塑料咳塑法之多層預塑 坯，其中該聚對-酞酸乙二酯外層為由未經使用之聚對 -酞酸乙二醋注塑而得。 7 · $0申請專利範圍第6項之用於塑料吹塑法之多層預塑 还’其中該聚萘酸乙二酯内層與該未經使用之聚對-酞 酸乙二酯外層彼此間有一直接之界面表面。 5 · $Π申請專利範圍第1項之用於塑料吹塑法之多層預塑 还，其中該外層傜由後消費者再循環之聚對-酞酸乙二 -17 - 本紙張认適用中gg家辟（CNS )八4胁（21QX297公釐） ---.------裝------訂------ (請先閲讀背面之注意事項再填寫本頁) 經濟部中央標準局WC工消费合作社印製 Α8 Β8 C8 D8 π、申請專利範圍 酯注塑而成。 9.如申請專利範圍第8項之用於塑料吹塑法之多層預塑 坯，其中更包含一未經使用之聚對-酞酸乙二酯之更内 層，其與聚萘酸乙二酯内層合作，以將後消費者再循 環之聚對-酞酸乙二酯外層與由該預塑坯所吹塑之容器 之内容物分開。 10 ·如申請專利範圍第9項之用於塑料吹塑法之多層預塑 坯，其中該未經使用之聚對-酞酸乙二酯之更内層位在 該聚萘酸乙二酯内層與該後消費者再循環之聚對-酞酸 乙二酯外層之間。 11 ·如申請專利範圍第9項之用於塑料吹塑法之多層預塑 坯，其中該聚萘酸乙二酯内層位在該未經使用之聚對-酞酸乙二酯内層與該後消費者再循環之聚對-酞酸乙二 酯外層之間。 12.—種用以製造一用於塑料吹塑法之多層預塑坯之方法 *該方法包含： 熱形成一聚對禁酸乙二酯板片以提供一内層，以 供作一氣體屏障；及 在該聚對萘酸乙二酯内層週圍注塑一層聚對-酞酸 乙二酯外層，其當該預塑坯吹塑成一容器時，限制氣 體穿透聚對-酞酸乙二酯外層：， 13 .如申請專利範圍第12項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中該外層之注塑係使得未經 使用之聚對-酞酸乙二酯與聚萘酸乙二酯内層具有一直 -18 - 本紙張尺度逋用中國國家標準（CNS ) A4规格（210X297公瘦〉 —I n^i ^^^1 ^^^1 ( n^— 1^1 ^^^1 ^—^1 -ί-rej (請先閱讀背面之注意事項再填寫本頁) A8 B8 C8 D8 經濟部中央橾準局貝工消費合作社印製 申請專利範圍 接之界面表面。 14 ·如申請專利範圍第12項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中未經使用之聚對-酞酸乙二 酯板片被熱形成以提供另一内層，其與聚祭酸乙二酯 内層具有直接之界面表面，且之後該注塑利用後消費 者再循環之聚對-酞酸乙二酯在内層週圍執行。 15 ·如申請專利範圍第14項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中該聚禁酸乙二酯板片及未 經使用之聚對-酞酸乙二酯板片為同時熱形成。 16 ·如申請專利範圍第15項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中該聚禁酸乙二酯及未經使 用之聚對-酞酸乙二酯之熱形成之板片一起被蓮送至注 塑模具以供注塑後消費者再循環之聚對-酞酸乙二酯。 17. 如申請專利範圍第16項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中該熱形成被執行以提供未 經使用之聚對-酞酸乙二酯内層在聚萘酸乙二酯内層與 後消費者再循環之聚對-酞酸乙二酯外層之間。 18. 如申請專利範圍第16項之用以製造一用於塑料吹塑法 之多層預塑坯之方法，其中該熱形成被執行以提供聚 禁酸乙二酯内層在未經使用之聚對-酞酸乙二酯内層與 後消費者再循環之聚對-酞酸乙二酯外層之間U 19 本紙張尺度適用中國國家樣準（CNS > A4规格（210X297公釐） I--.------裝------訂------,/· (請先閱讀背面之注意事項再填寫本頁)
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CA2170039C (en) 2004-04-13
KR100304340B1 (ko) 2001-11-22
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WO1995007219A1 (en) 1995-03-16
EP0717704B1 (en) 2001-11-14
JPH09502404A (ja) 1997-03-11
AU7679994A (en) 1995-03-27
US5651933A (en) 1997-07-29
ATE208728T1 (de) 2001-11-15
IL110838A (en) 2000-01-31
US5804305A (en) 1998-09-08
DE69429096T2 (de) 2002-07-11
EP0717704A4 (en) 1997-06-11
EP0717704A1 (en) 1996-06-26
CA2170039A1 (en) 1995-03-16
IL110838A0 (en) 1994-11-28
US5443766A (en) 1995-08-22
PE25595A1 (es) 1995-09-21
KR960704764A (ko) 1996-10-09
BR9407434A (pt) 1996-04-09
AU682397B2 (en) 1997-10-02
ZA946675B (en) 1995-04-24

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