JPH0427094B2 - - Google Patents

Info

Publication number
JPH0427094B2
JPH0427094B2 JP59040071A JP4007184A JPH0427094B2 JP H0427094 B2 JPH0427094 B2 JP H0427094B2 JP 59040071 A JP59040071 A JP 59040071A JP 4007184 A JP4007184 A JP 4007184A JP H0427094 B2 JPH0427094 B2 JP H0427094B2
Authority
JP
Japan
Prior art keywords
biaxially oriented
barrier properties
gas barrier
oriented container
parison
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
JP59040071A
Other languages
English (en)
Other versions
JPS60183334A (ja
Inventor
Daiichi Aoki
Yoshinori Nakamura
Hiroyuki Orimoto
Kazumi Machida
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nissei ASB Machine Co Ltd
Original Assignee
Nissei ASB Machine Co Ltd
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 Nissei ASB Machine Co Ltd filed Critical Nissei ASB Machine Co Ltd
Priority to JP59040071A priority Critical patent/JPS60183334A/ja
Priority to US06/706,474 priority patent/US4680208A/en
Priority to KR1019850001301A priority patent/KR920000005B1/ko
Priority to EP85400386A priority patent/EP0153894B1/en
Priority to DE8585400386T priority patent/DE3575708D1/de
Priority to AU39294/85A priority patent/AU577094B2/en
Priority to CA000475607A priority patent/CA1227760A/en
Priority to ES1985292867U priority patent/ES292867Y/es
Publication of JPS60183334A publication Critical patent/JPS60183334A/ja
Publication of JPH0427094B2 publication Critical patent/JPH0427094B2/ja
Granted legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • 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
    • 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
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1646—Injecting parison-like articles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • 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
    • B29C49/0006—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor characterised by the material for heating or cooling
    • 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
    • B29C49/22—Blow-moulding, i.e. blowing a preform or parison to a desired shape within a mould; Apparatus therefor using multilayered preforms or parisons
    • 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
    • B32B1/00—Layered products having a non-planar shape
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/30—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers
    • B32B27/306—Layered products comprising a layer of synthetic resin comprising vinyl (co)polymers; comprising acrylic (co)polymers comprising vinyl acetate or vinyl alcohol (co)polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/34—Layered products comprising a layer of synthetic resin comprising polyamides
    • 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—Rigid or semi-rigid 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 or by deep-drawing operations performed on sheet material
    • 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—Rigid or semi-rigid 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 or 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
    • B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
    • B29C45/16—Making multilayered or multicoloured articles
    • B29C45/1642—Making multilayered or multicoloured articles having a "sandwich" structure
    • B29C45/1646—Injecting parison-like articles
    • B29C2045/1648—Injecting parison-like articles the parison core layer being a barrier 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
    • 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
    • B29C2949/0829—Height, length
    • B29C2949/0837—Height, length of a layer
    • 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
    • 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
    • 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
    • B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
    • B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
    • 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
    • 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
    • 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
    • B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
    • B32B2262/10—Inorganic fibres
    • B32B2262/101—Glass fibres
    • 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
    • B32B2307/30—Properties of the layers or laminate having particular thermal properties
    • B32B2307/306—Resistant to heat
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/514—Oriented
    • B32B2307/518—Oriented bi-axially
    • 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/40—Closed containers
    • B32B2439/60—Bottles
    • 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.]
    • Y10T428/131—Glass, ceramic, or sintered, fused, fired, or calcined metal oxide or metal carbide containing [e.g., porcelain, brick, cement, etc.]
    • Y10T428/1314—Contains fabric, fiber particle, or filament made of glass, ceramic, or sintered, fused, fired, or calcined metal oxide, or metal carbide or other inorganic compound [e.g., fiber glass, mineral fiber, sand, etc.]
    • 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]
    • 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]

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Ceramic Engineering (AREA)
  • Laminated Bodies (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
  • Packages (AREA)

Description

【発明の詳細な説明】 この発明は断面が３層の２軸配向容器に関する
ものである。
合成樹脂による薄肉の容器、たとえばびんなど
は、ガスバリヤーに劣る欠点を有する。また容器
を形成する合成樹脂のほとんどが、熱可塑性を有
することから耐熱性にも劣り、内容物の充填温度
が高いと熱収縮を起して変化する場合が多い。
このような欠点を除去する手段として、２軸配
向した容器を熱処理して耐熱性の向上を図つてい
るが、そのような手段にも限界があり、ガスバリ
ヤー性についてはほとんど改善されていない。
そこで一部では、ガスバリヤー性の向上を目的
として、容器の断面を３層に形成し、その中間層
をもつてガスバリヤー性の向上を図ることが試み
られているが、今のところ中間層によつても満足
するほどのガスバリヤー性は得られていない。
この発明は上記２軸配向容器における欠点を排
除するために考えられたものであつて、その目的
とするところは、中間層によつて断面が３層に形
成された２軸配向容器において、中間層をガスバ
リヤー性を有する合成樹脂とガラス繊維との混練
物により形成し、これにより従来の３層に形成さ
れた２軸配向容器よりも、 ガスバリヤー性と耐熱性とに優れた２軸配向容
器を提供することにある。
上記目的によるこの発明の２軸配向容器は、２
種の合成樹脂を同心円状にキヤビテイに射出して
成形した有底のパリソンを、延伸吹込成形して得
られた断面が３層のもので、内外層はポリエチレ
ンテレフタレートにより、また中間層はガラス繊
維を含むガスバリヤー性に優れた合成樹脂により
形成されている。
図面はその２軸配向容器の断面構造を具体的に
示すもので、延伸吹込成形されたびん体１の側壁
２及び底壁３の内外の２つの層４，４はポリエチ
レンフタレートにより形成されている。
また中間層５はエチレン酢酸ビニルコーポリマ
ーケン化物またはメタキシレン基含有ポリアミド
のガスバリヤー性に優れた合成樹脂と、それらの
合成樹脂に含まれたガラス繊維６によつて形成さ
れている。
この合成樹脂中のガラス繊維６は、長さ１〜４
ｍ／ｍのもので、0.5〜20重量％の範囲にて含ま
れており、びん体１の物理的強度及び耐熱性を増
すとともに、ガスバリヤー性の向上にも寄与し、
中間層５によるバリヤー性を合成樹脂による場合
よりもさらに一層向上させている。しかし樹脂中
のガラス繊維の量が20重量％よりも多くなると、
射出成形した有底のパリソンの延伸吹込成形が困
難となり、また含有量が少ないと満足すべき効果
が得られなくなる。
上記びん体１は、既に公知の手段をもつてきわ
めて容易に成形することができる。その成形は、
内外層４，４を形成する樹脂の中央に、ガラス繊
維を混練した中間層５の樹脂を位置させ、その両
方を同心円状にキヤビテイに射出して、断面が３
層の有底パリソンを成形することを始めとする。
このパリソン内の中間層の厚さは、そこに成形
されるびんの使用目的によつて異なり、内外層と
中間層の割合は射出量によつていかようにも調整
することができる。
上記びん体１はこのパリンソを通常の手段をも
つて軸方向に延伸し、更に空気圧をもつて膨脹す
ることによつて容易に成形することができる。
このような工程を得て成形されたガラス繊維入
りのびん体１では、ガラス繊維が内包された状態
にあつて、びん体１の表面には露出しないことか
ら、びんとしての外観は損われず、またびん体１
の底壁３における衝撃強度も増すことから、従来
自立びんとして成形されたびんよりも底部の構造
を簡素化することができる。
実施例 内外層 ポリエチレンテレフタレート 中間層 エチレン酢酸ビニルコポリマーケン化物 ガラス繊維（長さ３ｍ／ｍ）２重量％ 側壁の肉厚（ｍ／ｍ） 外層0.12 中間層0.15 内層0.14 比較例 90℃熱水収縮率 実施例 3.4〜3.6％ *PET（単層） 25〜30％* PET（ポリエチレンテレフタレート）のびんは
外観を止めないほど著しく変形したが、実施例の
変化には熱による変化は認められなかつた。
【図面の簡単な説明】
図面はこの発明による２軸配向容器の一部拡大
縦断面図である。 １……びん体、２……側壁、３……底壁、４…
…内外層、５……中間層、６……ガラス繊維。

Claims (1)

    【特許請求の範囲】
  1. １ ２種の合成樹脂を同心円状にキヤビテイに射
    出して有底のパリソンを成形し、そのパリソンを
    延伸吹込成形して得られた断面が３層の２軸配向
    容器において、その２軸配向容器の内外層をポリ
    エチレンテレフタレートにより形成し、中間層は
    長さ１〜４ｍ／ｍのガラス繊維を0.5〜20重量％
    の範囲にて含むエチレン酢酸ビニルコーポリマー
    ケン化物またはメタキシレン基含有ポリアミドの
    ガスバリヤー性を有する合成樹脂により形成して
    なることを特徴とする耐熱性及びガスバリヤー性
    に優れた２軸配向容器。
JP59040071A 1984-03-02 1984-03-02 耐熱性及びガスバリヤ−性に優れた２軸配向容器 Granted JPS60183334A (ja)

Priority Applications (8)

Application Number Priority Date Filing Date Title
JP59040071A JPS60183334A (ja) 1984-03-02 1984-03-02 耐熱性及びガスバリヤ−性に優れた２軸配向容器
US06/706,474 US4680208A (en) 1984-03-02 1985-02-28 Biaxially oriented plastic container with excellent heat-resistance and gas barrier properties
KR1019850001301A KR920000005B1 (ko) 1984-03-02 1985-02-28 내열성 및 가스배리어성이 우수한 2축배향용기
EP85400386A EP0153894B1 (en) 1984-03-02 1985-02-28 Biaxially oriented plastic container with excellent heat-resistance and gas barrier properties
DE8585400386T DE3575708D1 (de) 1984-03-02 1985-02-28 Behaelter aus biaxial orientiertem kunststoff mit guter waermeisolierung und gasundurchlaessigkeit.
AU39294/85A AU577094B2 (en) 1984-03-02 1985-03-01 Biazxially oriented plastic container with heat-resistant and gas barrier properties
CA000475607A CA1227760A (en) 1984-03-02 1985-03-01 Biaxially oriented plastic container with excellent heat-resistence and gas barrier properties
ES1985292867U ES292867Y (es) 1984-03-02 1985-03-01 Un envase orientado biaxialmente

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59040071A JPS60183334A (ja) 1984-03-02 1984-03-02 耐熱性及びガスバリヤ−性に優れた２軸配向容器

Publications (2)

Publication Number Publication Date
JPS60183334A JPS60183334A (ja) 1985-09-18
JPH0427094B2 true JPH0427094B2 (ja) 1992-05-11

Family

ID=12570694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59040071A Granted JPS60183334A (ja) 1984-03-02 1984-03-02 耐熱性及びガスバリヤ−性に優れた２軸配向容器

Country Status (8)

Country Link
US (1) US4680208A (ja)
EP (1) EP0153894B1 (ja)
JP (1) JPS60183334A (ja)
KR (1) KR920000005B1 (ja)
AU (1) AU577094B2 (ja)
CA (1) CA1227760A (ja)
DE (1) DE3575708D1 (ja)
ES (1) ES292867Y (ja)

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Also Published As

Publication number Publication date
AU3929485A (en) 1985-09-05
EP0153894B1 (en) 1990-01-31
KR850006155A (ko) 1985-10-02
JPS60183334A (ja) 1985-09-18
CA1227760A (en) 1987-10-06
EP0153894A3 (en) 1987-08-12
EP0153894A2 (en) 1985-09-04
US4680208A (en) 1987-07-14
DE3575708D1 (de) 1990-03-08
ES292867Y (es) 1987-04-16
KR920000005B1 (ko) 1992-01-06
ES292867U (es) 1986-08-01
AU577094B2 (en) 1988-09-15

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