WO2005118289A1 - ガスバリア性多層構造物およびその製造法 - Google Patents
ガスバリア性多層構造物およびその製造法 Download PDFInfo
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- WO2005118289A1 WO2005118289A1 PCT/JP2005/010275 JP2005010275W WO2005118289A1 WO 2005118289 A1 WO2005118289 A1 WO 2005118289A1 JP 2005010275 W JP2005010275 W JP 2005010275W WO 2005118289 A1 WO2005118289 A1 WO 2005118289A1
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- 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
- B29C49/78—Measuring, controlling or regulating
- B29C2049/7879—Stretching, e.g. stretch rod
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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
- B29C49/08—Biaxial stretching during blow-moulding
- B29C49/087—Means for providing controlled or limited stretch ratio
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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
- 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
- B29C51/04—Combined thermoforming and prestretching, e.g. biaxial stretching
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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
- 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
- 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
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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
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/0012—Mechanical treatment, e.g. roughening, deforming, stretching
- B32B2038/0028—Stretching, elongating
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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
- B32B2307/50—Properties of the layers or laminate having particular mechanical properties
- B32B2307/514—Oriented
- B32B2307/518—Oriented bi-axially
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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
- B32B2307/718—Weight, e.g. weight per square meter
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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
- B32B2307/724—Permeability to gases, adsorption
- B32B2307/7242—Non-permeable
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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
- B32B2439/00—Containers; Receptacles
- B32B2439/40—Closed containers
- B32B2439/60—Bottles
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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]
- 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]
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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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
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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
- Y10T428/31504—Composite [nonstructural laminate]
- Y10T428/31725—Of polyamide
- Y10T428/31736—Next to polyester
Definitions
- the present invention relates to a multilayer structure having excellent gas barrier performance and a method for producing the same.
- Packaging materials used for packaging of foods and beverages, etc. have high strength, resistance to cracking, heat resistance, as they protect the contents, such as the environment during distribution, storage conditions such as refrigeration, and processing power such as heat sterilization.
- an oxygen barrier property for preventing invasion of oxygen by an external force in order to suppress food iridescence, and a barrier property function for various flavor components with a change in taste.
- Thermoplastic resins such as polyolefins such as polyethylene and polypropylene, polyesters such as polyethylene terephthalate, and aliphatic polyamides such as nylon 6 are transparent and have excellent mechanical properties. It is widely used after being processed into molded products such as packaging films, packaging sheets and containers such as bottles. However, the barrier property against gaseous substances such as oxygen is inferior, so that the contents are liable to be oxidized and deteriorated, and the expiration date of the contents is shortened by the permeated aroma components.
- Polyamide capable of polycondensation reaction between xylylenediamine and aliphatic dicarboxylic acid, for example, metaxylylenediamine and polyamide capable of also obtaining adipic acid have strength, elastic modulus, Excellent barrier properties against gaseous substances such as oxygen and carbon dioxide. Therefore, it is widely used as a gas barrier material for packaging materials for the purpose of improving gas nobility.
- Polyamide MXD6 has better thermal stability during melting than other gas barrier resins. It can be co-extruded or co-injected with various thermoplastic resins such as nylon 6 and polypropylene, etc., and its use as a gas barrier layer in multilayer structures has been actively promoted recently. .
- Multi-layered structures having a gas barrier layer that also has a strong effect such as bi-lidene chloride, ethylene-bulcohol copolymer, and poly-bulcohol, are also being used.
- the multilayer structure including the Shiridani bilidene layer has excellent gas barrier properties irrespective of storage conditions, dioxin is generated when it is burned, and there is a problem of polluting the environment.
- Ethylene bul alcohol copolymer and poly bul alcohol do not have the above-mentioned environmental pollution problems
- the multilayer structure having such a powerful gas barrier layer exhibits excellent gas barrier properties in a relatively low humidity environment
- the stored contents have high water activity or high humidity. If stored in an environment or subjected to heat sterilization after filling the contents, the gas barrier properties will be significantly reduced, and the preservability of the contents will not be good.
- a film coated with polyvinyl alcohol and a composition capable of forming an inorganic layer is also disclosed (for example, see Patent Document 1 and Patent Document 2). Since the film is mainly made of polyvinyl alcohol, which has excellent gas nori properties under low humidity, the gas barrier property under high humidity is greatly reduced.
- Patent Document 5 describes a multilayer resin obtained by laminating a thermoplastic resin layer containing no layered silicate on both sides of a polyamide resin composition layer in which the layered silicate is uniformly dispersed, and stretching. It is disclosed that the stretched film exhibits improved transparency.
- the stretching conditions of the polyamide MXD6 containing the layered silicate nor is there any description of the specific properties of the multilayer structure obtained under the specific stretching conditions.
- Patent Document 1 JP-A-7-251874
- Patent Document 2 JP-A-7-304128
- Patent Document 3 JP-A-2-305828
- Patent Document 4 JP-A-8-53572
- Patent Document 5 JP-A-2002-29012
- An object of the present invention is to provide a multilayer structure having a gas barrier layer, which is excellent in transparency and gas-nolia property, and a method for stretching and blowing a multilayer bottle, stretching a multilayer film, and the like.
- An object of the present invention is to provide a method for producing the multilayered structure, in which whitening due to cracks and reduction in gas barrier properties are suppressed.
- the inventors of the present invention have obtained a laminate obtained by laminating a specific composite resin layer and a thermoplastic resin layer, and then performing stretch thermoforming so as to exhibit specific properties under specific conditions.
- the multi-layer structure was found to be excellent in transparency and gas barrier performance, and completed the present invention.
- the present invention provides a diamine unit containing at least 70 mol% of a metaxylylenediamine unit and a dicarboxylic unit containing at least 70 mol% of a unit derived from an ex, ⁇ -linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms.
- Glass transition point from at least one gas nolia layer (1) composed of resin (C) and composite resin (C) A gas barrier obtained by subjecting a multilayer laminate formed from at least one layer (2) made of a thermoplastic resin (D) having a low heat resistance to stretching and thermoforming at a temperature equal to or higher than the glass transition point of the composite resin (C).
- the maximum stretching stress per unit cross-sectional area of the unstretched film at the time of simultaneous biaxial stretching at a stretching ratio of 3 X 3 should be within the range of 0.2 to 2.OMPa and the preheating time before stretching.
- the present invention relates to a gas barrier multilayer structure characterized by the following.
- the present invention relates to a gas-nolia-based multi-layer container using at least a part of the multi-layer structure.
- the present invention provides at least one gas nolia layer (1) having a composite resin (C) force and at least one layer having a glass transition point lower than that of the composite resin (C) and a thermoplastic resin (D) force.
- Forming a multilayer laminate comprising the resin layer (2), and stretching and thermoforming the multilayer laminate at a temperature equal to or higher than the glass transition point of the composite resin (C).
- the polyamide resin (A) used in the present invention can be obtained by melt polycondensation of a diamine component and a dicarboxylic acid component or by solid phase polymerization after melt polycondensation.
- the diamine units in the polyamide resin (A) must contain at least 70 mol% of metaxylylenediamine units. An excellent gas barrier property can be maintained when the amount of the methaxylylenediamine unit is 70 mol% or more.
- a diamine component that can be used other than meta-xylylenediamine tetramethylene diamine, Pentamethylenediamine, 2-methylpentanediamine, hexamethylenediamine, heptamethylenediamine, otatamethylenediamine, nonamethylenediamine, decamethylenediamine, dodecamethylenediamine, 2 Aliphatic diamines such as 1,2,4 trimethyl-1-hexamethylenediamine and 2,4,4 trimethylhexamethylenediamine; 1,3 bis (aminomethyl) cyclohexane, 1,4 bis (amino Methyl) cyclohexane, 1,3 diaminocyclohexane, 1,4 diaminocyclohexane, bis (4 aminocyclohexyl) methane, 2,2 bis (4-aminocyclohexyl) propane, bis (aminomethyl A) alicyclic diamines such as decalin and bis (aminomethyl) tri
- the dicarboxylic acid unit in the polyamide resin (A) is preferably at least 70 mol%, more preferably at least 80 mol%, a unit derived from oc, ⁇ -linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms. And more preferably 90 mol% or more.
- the ⁇ , ⁇ -linear aliphatic dicarboxylic acids include aliphatic dicarboxylic acids such as succinic acid, glutaric acid, pimelic acid, suberic acid, azelaic acid, adipic acid, sebacic acid, undecandioic acid, and dodecandioic acid. However, adipic acid is particularly preferred.
- ⁇ linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms in the dicarboxylic acid unit is 70 mol% or more, it is possible to avoid a decrease in gas barrier properties and an excessive decrease in crystallinity.
- the dicarboxylic acid component other than the oc, ⁇ linear aliphatic dicarboxylic acid having 4 to 20 carbon atoms include aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, and 2,6-naphthalenedicarboxylic acid.
- the polyamide resin ( ⁇ ) also contains a small amount of a unit derived from monoamine or monocarboxylic acid used as a molecular weight regulator during polycondensation!
- the melt polycondensation method is, for example, a method in which a nylon salt as a diamine component and a dicarboxylic acid component is heated under pressure in the presence of water and polymerized in a molten state while removing added water and condensed water. There is. Further, it is also produced by a method in which a diamine component is directly calorified into a dicarboxylic acid component in a molten state and polycondensed. In this case, in order to keep the reaction system in a uniform liquid state, the diamine component is continuously added to the dicarboxylic acid component, and during this time, the reaction system is heated so that the reaction temperature does not fall below the melting point of the generated oligoamide and polyamide. And Meanwhile, polycondensation proceeds.
- the relative viscosity of a relatively low molecular weight polyamide obtained by melt polycondensation is usually 2. It is about 28.
- the relative viscosity after the melt polycondensation is 2.28 or less, a high-quality polyamide resin having a low color tone and a good color tone can be obtained.
- the relatively low molecular weight polyamide resin obtained by melt polycondensation is then subjected to solid state polymerization.
- Solid-state polymerization involves pelletizing or powdering the relatively low-molecular-weight polyamide resin and heating it to a temperature of 150 ° C or higher and a melting point of the polyamide resin or lower under reduced pressure or an inert gas atmosphere. More enforced c
- the relative viscosity of the polyamide resin (A) is preferably from 1.8 to 3.9, more preferably from 2.4 to 3.7, still more preferably from 2.5 to 3.7. .
- the hollow container, film, and sheet can be formed into a good shape, and the obtained hollow container, film, and sheet have good performance, particularly good mechanical performance.
- a melt-kneading method may be used.However, if the relative viscosity is less than 1.8, the viscosity of the molten resin is reduced. If it is too low, the layered silicate (B) becomes difficult to disperse, and its agglomerates are formed and the appearance is impaired when the film is immediately formed. Polyamide resin (A) having a relative viscosity of more than 3.9 is difficult to produce and may require special equipment for melt kneading. When the relative viscosity is particularly 1.8 to 3.9, an appropriate pressure is applied to the resin during extrusion kneading, so that the dispersibility of the layered silicate (B) is improved.
- Polyamide resin (A) includes impact modifiers such as elastomers; crystal nucleating agents; lubricants such as fatty acid amide compounds, fatty acid metal salt compounds, and fatty acid amide compounds; copper compounds , Organic or inorganic halogenated compounds, hindered phenol compounds, hindered amine compounds, hydrazine compounds, sulfur compounds, phosphorus compounds (sodium hypophosphite, potassium hypophosphite, calcium hypophosphite, hypophosphorous acid) Magnesium, etc.), heat stabilizers, coloring inhibitors, benzotriazole-based ultraviolet absorbers, mold release agents, plasticizers, coloring agents, and additives such as flame retardants. Also good.
- impact modifiers such as elastomers
- crystal nucleating agents such as fatty acid amide compounds, fatty acid metal salt compounds, and fatty acid amide compounds
- lubricants such as fatty acid amide compounds, fatty acid metal salt compounds, and fatty acid amide compounds
- copper compounds Organic
- the mixing ratio of the polyamide ⁇ (A) is 92 to 99 weight 0/0 of the composite ⁇ (C) (the total of the polyamide ⁇ (A) and layered silicate (B)), preferably 95 98. 5 wt 0/0.
- the layered silicate used in the present invention is a 2-octahedral or 3-octahedral layered silicate having a charge density of 0.25 to 0.6.
- Examples include montmorillonite, neuderite, etc., and 3-octahedral types include hectorite, sabonite, and the like. Among these, montmorillonite is preferred.
- the layered silicate (B) is obtained by bringing an organic swelling agent such as a polymer compound or an organic compound into contact with the layered silicate.
- an organic swelling agent such as a polymer compound or an organic compound
- exchangeable inorganic cations such as sodium potassium and calcium present between the layers of the layered silicate are ion-exchanged with the organic swelling agent.
- the organic swelling agent include halogen salts of ammonium, phosphonium and sulfodium. Among these, an ammonium salt and a phosphonium salt are preferable, and an ammonium salt is particularly preferably used.
- ammonium salt any of primary, secondary, tertiary and quaternary ammonium salts may be used, but in order to obtain the effect of interlayer expansion, a substituent having 12 or more carbon atoms is required. An ammonium salt having the same is preferably used.
- organic swelling agent examples include trimethyl dodecyl ammonium salt, trimethyl tetradecyl ammonium salt, trimethylhexadecyl ammonium salt, trimethyloctadecyl ammonium salt, trimethyl eicosyl ammonium salt.
- -Trimethylalkylammonium such as pum salt
- Dimethyldialkylammonium salt; dimethyldioctadedecammonium salt; dimethyldioctadecadielumammonium salt Dimethyldialkane-ammonium salt such as dimethyl salt; getyldidodecylammonium-pam salt, getylditetradecylammonium-pam salt, getyldihexadecylammonium-pam salt, getyldioctadecylammonium- ⁇ Dibutyl didodecyl ammonium salt such as dimethyl salt; dibutyl didodecyl ammonium salt; dibutyl ditetradecyl ammonium salt; dibutyl dihexadecyl ammonium salt; dibutyl dioctadecyl ammonium salt.
- Dibenzyldialkylammonium salts such as methyl salts; methylbenzyldialkylammonium salts such as methylbenzyldihexadecylammonium salts; dibenzyldialkylammonium salts such as dibenzyldihexadecylammonium salts.
- Trialkylethylammonium salts such as trialkylethylammonium salts
- trialkylethylammonium salts such as tridodecylethylammonium salts
- trialkylbutylammonium salts such as tridodecylbutylammonium salts.
- ⁇ such as 4-amino-n-butyric acid, 6-amino-n-caproic acid, 8-aminocaprylic acid, 10-aminodecanoic acid, 12-aminododecanoic acid, 14-aminotetradecanoic acid, 16-aminohexadecanoic acid, and 18-aminooctadecanoic acid — Amino acids and the like.
- polyamides and / or polyamide oligomers in which at least one of the terminals having a diamine and dicarboxylic acid force is an amino group and a ⁇ or ammodime salt can also be used as the organic swelling agent.
- the diamine include tetramethylene diamine, pentamethylene diamine, 2-methylpentanediamine, hexamethylene diamine, heptamethylene diamine, octamethylene diamine, nonamethylene diamine, and decamethylene diamine.
- Aliphatic diamines such as dimethylamine, dodecamethylenediamine, 2,2,4 trimethyl-hexamethylenediamine and 2,4,4 trimethylhexamethylenediamine; 1,3 bis (aminomethyl) cyclohexane; 1,4-bis (aminomethyl) cyclohexane, 1,3 diaminocyclohexane, 1,4-diaminocyclohexane, bis (4-aminocyclohexyl) methane, 2,2 bis (4-aminocyclohexyl) Alicyclic diamines such as propane, bis (aminomethyl) decalin and bis (aminomethyl) tricyclodecane; bis (4-aminophenyl) Ether, Bruno Rafue - Renjiamin, meta-xylylene Amin, Bruno La xylylene ⁇ Min, and a bis Jiamin having an aromatic ring such as (aminomethyl) naphthalene.
- dicarboxylic acid examples include succinic acid, dataric acid, pimelic acid, suberic acid, azelaic acid, adipic acid, sebacic acid, pendecanedioic acid, dodecanedioic acid and the like. , ⁇ -linear aliphatic dicarboxylic acids; aromatic dicarboxylic acids such as terephthalic acid, isophthalic acid, 2,6-naphthalenedicarboxylic acid and the like.
- the diamine and / or dicarboxylic acid are similar to the constituent components of the polyamide resin ( ⁇ ).
- an ammonium salt containing a hydroxyl group and a hydroxyl group or an ether group for example, a methyldihydroxicetyl hydrogenated tallow ammonium salt, and a methyldialkyl (PAG) ammonium salt
- -Pharmadium salt dimethylbis (PAG) ammonium salt, getylbis (PAG) ammonium salt, dibutylbis (PAG) ammonium salt, methylalkylbis (PAG) ammonium salt, ethyl Alkylbis (PAG) ammonium salt, butylalkylbis (PAG) ammonium salt, methyltri (PAG) ammonium salt, ethylethyl (PAG) ammonium salt, butyltri (PAG) ammonium salt Salt, tetra (PAG) ammonium salt (where alkyl represents an alkyl group having 12 or more carbon atoms such as dodecyl, tetradecyl, hexadecyl, octadecyl, eicosyl, etc.), and PAG is a polyalkylene glycol residue, preferably A quaternary ammonium salt containing at least one alkylene glycol residue, such as a
- trimethyl dodecyl ammonium salt trimethyl tetradecyl ammonium salt, trimethyl hexadecyl ammonium salt, trimethyl octadecyl ammonium salt, dimethyl didodecyl ammonium salt, dimethyl ditetramethyl salt
- decyl ammonium salt dimethyl dihexadecyl ammonium salt, dimethyl dioctadecyl ammonium salt, dimethyl ditallow ammonium salt, and methyldihydroxyethyl hydrogenated tallow ammonium salt.
- These organic swelling agents can be used alone or as a mixture of plural kinds.
- the compounding ratio of the layered silicate ( ⁇ ) is 1 to 8% by weight, preferably 1.5 to 5% by weight of the composite resin (C).
- the compounding ratio of the layered silicate ( ⁇ ) is within the above range, the effect of improving gas barrier properties can be obtained, and the transparency is not impaired.
- the layered silicate ( ⁇ ) is uniformly dispersed without local aggregation.
- Uniform dispersion refers to the layered state of polyamide resin ( ⁇ ). It means that the silicate (B) separates into a plate shape, and 50% or more of them have an interlayer distance of 5 nm or more.
- the interlayer distance refers to the distance between the centers of gravity of the flat objects. The longer this distance is, the better the dispersion state is, the better the appearance such as the transparency of the molded product such as a bottle or a film, and the better the barrier property against gaseous substances such as oxygen and carbon dioxide gas. .
- a method for producing the composite resin (C) a method of melt-kneading the polyamide resin (A) and the layered silicate (B) using an ordinary single screw or twin screw extruder or the like, There is a method in which the layered silicate (B) is added during the synthesis of the fat (A) and the mixture is stirred, but there is no particular limitation. Among these, a melt kneading method using a twin screw extruder is preferred.
- the melt-kneading temperature is set in the range of around the melting point of polyamide resin (A) to the melting point + 60 ° C, and the residence time of the resin in the extruder as much as possible. Should be shortened.
- the part where the polyamide resin (A) and the layered silicate (B) of the screw installed in the extruder are mixed should use a combination of parts such as a reverse screw element and a minus one disc.
- the layered silicate (B) is efficiently dispersed.
- the layered silicate (B) When the layered silicate (B) is added during the synthesis of the polyamide resin (A), a method of promoting polycondensation after addition to the aqueous solution of the nylon salt, a method of adding the diamine to the diamine component and Z or the dicarboxylic acid component and then dissolving the dicarboxylic acid
- the method includes adding a diamine component to the component to promote polycondensation, or adding it during the polycondensation.
- the polyamide polycondensation equipment is equipped with sufficient mixing equipment to disperse the layered silicate (B) Since it is difficult to carry out the reaction, it is preferable to add it to the raw material of the polyamide or to the reaction system at the initial stage of polycondensation.
- the glass transition point of the composite resin (C) is preferably from 60 to 120 ° C.
- Thermoplastic resins (D) having a lower glass transition point than composite resins (C) include polyethylenes such as low-density polyethylene, medium-density polyethylene, and high-density polyethylene; propylene homopolymer, propylene-ethylene block copolymer, Polypropylenes such as propylene and ethylene random copolymer; ethylene butene copolymer, ethylene-hexene copolymer, ethylene otene copolymer, ethylene butyl acetate copolymer, ethylene methyl methacrylate copolymer, propylene a- olefin copolymer Coalesce, polybutene, polypentene, ionomers, various polyolefins such as fats; polyesters such as polyethylene terephthalate, etc. Fats; polyamide resins such as nylon 6, nylon 66 and nylon
- the layer (2) includes impact modifiers such as perlastomers; crystal nucleating agents; lubricants such as fatty acid amide compounds, fatty acid metal salt compounds and fatty acid amide compounds; copper compounds and organic compounds.
- impact modifiers such as perlastomers; crystal nucleating agents; lubricants such as fatty acid amide compounds, fatty acid metal salt compounds and fatty acid amide compounds; copper compounds and organic compounds.
- Inorganic pigments such as magnesium oxide); thermal stabilizers; color stabilizers; ultraviolet absorbers such as benzotriazole compounds; mold release agents; plasticizers; An additive such as an organic pigment such as a dye may be contained.
- the multi-layer structure of gasoline of the present invention is mainly composed of a gas layer (composite resin (C)).
- the number of layers is not limited as long as at least one layer of (1) and at least one layer of thermoplastic resin (D) are laminated. Further, a layer (3) having another material strength may be included. For example, layer (2) layer Z (1) layer Z (2), layer (2) layer Z (1) layer Z (2) layer Z (1) layer Z (2), layer (1) layer Z (2 ) Z layer (
- each gas barrier layer (1) is preferably between 1 and 150 ⁇ m, and the thickness of each layer (2) is preferably between 20 and 800 ⁇ m.
- a method for producing the gas barrier multilayer structure of the present invention will be described.
- a multilayer laminate including at least one layer (1), at least one layer (2), and, if necessary, a layer (3) is produced by a known method.
- stretching thermoforming means stretching of a film or sheet, stretch blow molding of Norrison or the like, and deep drawing of a film or sheet.
- stretching thermoforming is performed at a temperature equal to or higher than the glass transition point of the material resin.
- the stretching thermoforming temperature and the preheating time before stretching of the multilayer laminate are controlled by setting the linear velocity in the stretching axis direction of the single-layer unstretched film made of the composite resin (C) to 60% Z seconds.
- the temperature and preheating time before stretching are set so that the maximum stretching stress (per unit cross-sectional area of the unstretched film) when simultaneously biaxially stretching to a stretching ratio of 3 X 3 under the conditions is in the range of 0.2 to 2.
- the stretching thermoforming temperature of the multilayer laminate is preferably above the glass transition point of the composite resin (C).
- “preheating time before stretching” means the time from the start of heating of the multilayer laminate to the start of stretching thermoforming.
- the stretchability of the composite resin (C) is largely affected by the polyamide resin (A) and the layered silicate (B) constituting the composite resin (C). Since the glass transition point and the rate of crystallization vary depending on the composition of the constituent units of the polyamide resin (A), it is necessary to appropriately select the stretching thermoforming temperature and the preheating time before stretching. Further, since the layered silicate (B) is contained, the composite resin (C) has a higher stretching stress than the polyamide resin (A), and the crystallization rate is also changed.
- a single-layer unstretched film made of the composite resin (C) is simultaneously biaxially stretched to a stretching ratio of 3 ⁇ 3 under the condition that the linear velocity in the stretching axis direction is 60% Z seconds.
- OMPa and the preheating time before stretching are determined.
- the stretch thermoforming is performed at a temperature at which the maximum elongation stress exceeds 2.OMPa and a preheating time before stretching, the layered silicate (B) and the polyamide resin (A) that can only break the multilayer structure can be obtained. Micro-cracks are formed near the interface of, and gas barrier performance and transparency are reduced. Under the conditions of less than 0.2 MPa, stretch thermoforming is possible, but the stretching effect by the orientation of the resin is not sufficiently obtained. Not so desirable! / ,.
- the heat of crystallization of the gas barrier layer (1) after stretching and aging measured with a differential scanning calorimeter (DSC) at a heating rate of 10 ° CZmin, is preferably 0 to 20 jZg.
- DSC differential scanning calorimeter
- the gas barrier multilayer structure of the present invention preferably has a haze value of 0% or more and less than 10% as measured according to ASTM D-1003.
- the degree of orientation represented by the following formula (I) of the gas barrier layer (1) after the stretch thermoforming is preferably from 10 to 45.
- each refractive index was measured at 23 ° C. with an Abbe refractometer at a sodium D line (589 nm).
- the degree of orientation is within the above range, the orientation of the resin is sufficient by stretch thermoforming, and an effect of improving gas barrier performance and mechanical performance can be obtained.
- Examples of the form of the gas barrier multilayer structure of the present invention include a multilayer hollow container such as a multilayer bottle, a multilayer stretched film, and a multilayer sheet container.
- the form is not particularly limited as long as it is a multilayer structure having improved gas barrier performance, transparency, and mechanical performance by stretching and thermoforming according to the production method of the present invention.
- the end of the film may be fixed, or a blown container may be subjected to a heat setting process in which the blown container is kept at a stretch thermoforming temperature or higher without being deformed by applying an internal pressure in a mold.
- a heat setting process in which the blown container is kept at a stretch thermoforming temperature or higher without being deformed by applying an internal pressure in a mold.
- the outermost layer and the innermost layer are layers (2), and an intermediate layer located between the outermost layer and the innermost layer. It is preferred that at least one of the layers is layer (1).
- the thermoplastic resin (D) constituting the layer (2) preferably 80 mol% or more, more preferably 90 mol% or more of dicarboxylic acid units are terephthalic acid units, and preferably 80 mol% or more of diol units. Polyesters in which at least 90 mol%, more preferably at least 90 mol%, of ethylene glycol units are exemplified.
- dicarboxylic acid units include isophthalic acid, diphenyl ether 4, 4 dica Units derived from dicarboxylic acids such as rubonic acid, naphthalene 1, 4 or 2, 6 dicarboxylic acid, adipic acid, sebacic acid, decane 1, 10-carboxylic acid, hexahydroterephthalic acid, and other diol units
- diol units are propylene glycol, 1,4-butanediol, neopentyl glycol, diethylene glycol, cyclohexanedimethanol, 2,2-bis (4-hydroxyphenyl) prononone, 2,2-bis (4-hydroxyethoxyfur) prone Units derived from diols such as bread can be exemplified.
- a polyester resin containing a unit derived from an oxyacid such as p-oxybenzoic acid can be exemplified.
- the intrinsic viscosity of the thermoplastic resin (D) is preferably from 0.55 to: L5 is more preferable, and particularly preferably from 0.65 to: L4. With an intrinsic viscosity of 0.55 or more, it is possible to obtain a multi-layer Norison in a transparent amorphous state, and the obtained multi-layer hollow container has sufficient mechanical strength.
- a layer (2) formed of polyethylene terephthalate (thermoplastic resin (D)), a composite resin having a polyamide MXD6 (polyamide resin (A)) and a layered silicate (B) are also used.
- the combination with the gas barrier layer (1) formed from (C) is most preferable. The reason for this is that these resins are excellent in all of transparency, mechanical strength, injection moldability, and stretch blow moldability.
- the multilayer hollow container includes two injection cylinders (a skin-side injection cylinder for thermoplastic resin (D) and a core-side injection cylinder for resin containing composite resin (C) as a main component). Injecting a thermoplastic resin (D) and a resin containing a composite resin (C) as main components from each injection cylinder into the mold cavity through the mold hot runner using an injection molding machine It can be obtained by further biaxially stretch-blow-molding the obtained multilayer nozzle.
- a skin-side injection cylinder for thermoplastic resin (D) and a core-side injection cylinder for resin containing composite resin (C) as a main component Injecting a thermoplastic resin (D) and a resin containing a composite resin (C) as main components from each injection cylinder into the mold cavity through the mold hot runner using an injection molding machine It can be obtained by further biaxially stretch-blow-molding the obtained multilayer nozzle.
- thermoplastic resin (D) is injected, and then, a resin containing a composite resin (C) as a main component and a thermoplastic resin (D) are simultaneously injected.
- a parison having a three-layer structure of layer (2) Z layer (1) Z layer (2) can be manufactured.
- thermoplastic resin (D) is injected, and then, the resin mainly composed of the composite resin (C) is injected alone, and finally, the thermoplastic resin (D) is injected.
- the parison having a five-layer structure of layer (2) Z layer (1) Z layer (2) Z layer (1) Z layer (2) can be manufactured.
- the method of manufacturing the multilayer semiconductor is not limited to the above method.
- a multilayer structure obtained by biaxially stretch-blow-molding a multilayer parison exhibits gas nori properties if the gas barrier layer (1) is present at least in the trunk of the multilayer structure.
- the gas barrier performance is even better when the layer (1) extends to the vicinity of the tip of the plug part of the multilayer structure.
- a diamidite conjugate which can also obtain a fatty acid having 8 to 30 carbon atoms and a diamine power having 2 to 10 carbon atoms as a whitening inhibitor.
- Fatty acids having 8 to 30 carbon atoms and 2 to 2 carbon atoms At least one compound selected from diester conjugates capable of obtaining LO and diol can be added to the gas noori layer (1).
- the fatty acid may have a side chain or a double bond, but is preferably a linear saturated fatty acid.
- Examples of the fatty acid include stearic acid (C18), eicoic acid (C20), behenic acid (C22), montanic acid (C28), and triacontanic acid (C30).
- Examples of the diamine include ethylenediamine, butylenediamine, hexanediamine, xylylenediamine, bis (aminomethyl) cyclohexane, and the like. One type of diamide compound may be used, or two or more types may be used in combination.
- a diamide compound obtained by obtaining a diamine having mainly a fatty acid having 8 to 30 carbon atoms and an ethylene diamine power and a diamide compound obtained by obtaining a diamine having mainly a fatty acid having montanic acid and a diamine having 2 to 10 carbon atoms are preferable.
- Examples of the diol include ethylene glycol, propanediol, butanediol, hexanediol, xylylene glycol, cyclohexanedimethanol and the like.
- One diester compound may be used, or two or more diester compounds may be used in combination.
- Particularly preferred are diester compounds obtained mainly from fatty acids mainly containing montanic acid and mainly ethylene glycol and Z or 1,3-butanediol.
- the amount of the diamide compound and the amount of the Z or diester conjugate to be added is preferably 0.005 to 1.0 part by weight, based on 100 parts by weight of the composite resin (C). It is preferably from 0.05 to 0.5 part by weight, particularly preferably from 0.12 to 0.5 part by weight.
- a multilayer sheet container obtained by stretching and forming a multilayer stretched film and a multilayer sheet is a multilayer laminate of a layer (1) having a layer (1) as an intermediate layer and a layer (2) obtained by coextrusion. It is manufactured by stretching thermoforming. Known methods such as a T-die method and an inflation method can be used as the co-extrusion method.
- the layer (1) is not an outer layer but an intermediate layer because the surface roughness of the layer (1) can be reduced and the haze of the multilayer structure can be reduced.
- thermoforming method a known method such as a tenter method or a blow stretching method can be used.
- heat fixing by reheating may be performed to prevent deformation due to moisture absorption, increase crystallinity, and further improve barrier performance.
- thermoplastic resin (D) polyolefin or aliphatic polyamide is preferable.
- the draft ratio is not extremely increased. If the draft ratio is extremely high, fine voids are formed around the layered silicate (B) in the composite resin (C), and the appearance such as an increase in the haze value, which not only lowers the gas barrier property, but is poor. Tend to.
- the gas-barrier multilayer structure of the present invention can be used as it is as a gas-barrier multilayer container, or the multilayer structure can be used at least in part to obtain a gas-nolia multilayer container.
- Multi-layer structures such as multi-layer bottles, multi-layer stretched films, and multi-layer sheet containers manufactured by co-extrusion and co-injection molding followed by stretch thermoforming, as they are, or by bonding with slight heating and heat sealing or other methods to form gas-nolia multilayers It can be used as a container.
- Various articles can be stored and stored in the gas-nolia-based multilayer container of the present invention.
- carbonated drinks, juices, water, milk, sake, whiskey, shochu, coffee, tea, jelly drinks liquid drinks such as health drinks, seasonings, sauces, soy sauce, dressings, liquid stocks, mayonnaise, miso, Seasonings such as spices, meat and meat foods such as ham and sausage, pasty foods such as jams, creams, chocolate pastes, and liquid foods such as liquid soups, boiled foods, pickles, and stewed liquids.
- Raw and boiled rice such as yasoba, udon, ramen, etc., rice before cooking such as polished rice, conditioned rice, unwashed rice, etc., processed rice products such as cooked rice, gomoku rice, red rice, rice porridge, powder Made from high-moisture foods such as soups, soup stock and other powdered seasonings, dried vegetables, coffee beans, coffee powder, tea, and grains Low-moisture foods such as confectionery, other solid and solution chemicals such as pesticides and pesticides, liquid and pasty medicines, lotions, cosmetic creams, milky lotions, hair styling, hair dyes , Shampoo, stone, detergent, etc. can be stored.
- the multi-layer gas-noble container of the present invention is subjected to a heat sterilization treatment of a packaging container for storing articles having high water activity, a packaging container exposed to high humidity, and a retort or a boiler. It is suitable as a packaging container.
- Standard material ⁇ -alumina, measured under the following conditions with a flow rate differential scanning calorimeter DSC-50 manufactured by Shimadzu Corporation
- the haze of the film was measured according to ASTM D1003 using a color difference 'turbidity meter COH-300A manufactured by Nippon Denshoku Industries Co., Ltd.
- the measuring device used was an oxygen permeability measuring device (model: OX-TRAN 10 / 50A) manufactured by Modern Controls, Inc. The measuring conditions were 23 ° C. and 60% relative humidity.
- composition (% by weight)
- the composite resin C1 is used with a small film production equipment (Labo Plastomill manufactured by Toyo Seiki Co., Ltd., screw diameter 20 mm, T die width 200 mm), with a growth temperature of 260 ° C [trowel single layer 180 After forming an unstretched film having a thickness of ⁇ m, the stretching temperature was 100 ° C, the preheating was 30 seconds, the linear velocity in the stretching axis direction was 60% Z seconds, and the stretching was performed using a tenter-type biaxial stretching apparatus (manufactured by Toyo Seiki Co., Ltd.). Simultaneous biaxial stretching was performed at a stretching ratio of 3 ⁇ 3.
- the maximum stretching stress per unit sectional area during stretching was 0.7 MPa, and the haze value of the obtained film (thickness: 20 m) was 0.5%.
- Oxygen permeability at 23 ° C, 60% RH is, 0. 05ml - mm / m 2 - day - atm, DSC heating heat of crystallization by the measurement is 9JZg, the degree of orientation was 19.
- An unstretched film produced in the same manner as in Reference Example 1 except that the composite resin C2 was used was simultaneously stretched at a stretching temperature of 105 ° C, a preheating of 30 seconds, a linear velocity in the stretching axial direction of 60% Z seconds, and a stretching ratio of 3 X 3. It was biaxially stretched.
- the maximum stretching stress per unit cross-sectional area during stretching was 1. OMPa, and the haze value of the obtained film (thickness: 20 m) was 3.2%.
- the maximum stretching stress per unit sectional area during stretching was 1.4 MPa, and the haze value of the obtained film (thickness: 20 m) was 3.4%.
- the oxygen transmission coefficient at 23 ° C. and 60% RH was 0.02 ml-mm / m 2 -day-atm, the heat of crystallization by DSC measurement was 3 JZ g, and the degree of orientation was 29.
- the maximum stretching stress per unit cross-sectional area during stretching was 1.7 MPa, and the haze value of the obtained film (thickness: 20 m) was 3.5%.
- the oxygen transmission coefficient at 23 ° C. and 60% RH was 0.02 ml-mm / m 2 -day-atm, and the heat of crystallization was not detected by DSC measurement, and the degree of orientation was 28.
- An unstretched film prepared in the same manner as in Reference Example 1 except that the composite resin C5 was used was simultaneously stretched at a stretching temperature of 95 ° C, a preheating of 30 seconds, a linear velocity in the stretching axial direction of 60% Z seconds, and a stretching ratio of 3 X 3 It was biaxially stretched.
- the maximum stretching stress per unit cross-sectional area during stretching was 1.6 MPa, and the haze value of the obtained film (thickness: 20 m) was 5.8%.
- the oxygen transmission coefficient at 23 ° C and 60% RH was 0.03 ml-mm / m 2 -day-atm, the heat of crystallization by DSC measurement was 17 jZg, and the degree of orientation was 20.
- the maximum stretching stress per unit sectional area during stretching was 0.3 MPa, and the haze value of the obtained film (thickness: 20 m) was 3.4%.
- the DSC measurement showed no heat generation crystallization exotherm, and the degree of orientation was 16.
- An unstretched film produced in the same manner as in Reference Example 1 except that the composite resin C3 was used was simultaneously stretched at a stretching temperature of 95 ° C, a preheating of 30 seconds, a linear velocity in the stretching axial direction of 60% Z seconds, and a stretching ratio of 3 X 3 It was biaxially stretched.
- the maximum stretching stress per unit cross-sectional area during stretching was 2.2 MPa, and the haze value of the obtained film (thickness: 20 m) was 13.1%.
- the oxygen transmission coefficient at 23 ° C and 60% RH was 0.06 ml-mm / m 2 -day-atm, the heat of crystallization by DSC measurement was 35 JZg, and the degree of orientation was 23.
- An unstretched film produced in the same manner as in Reference Example 1 except that the composite resin C2 was used was simultaneously stretched at a stretching temperature of 135 ° C, a preheating of 15 seconds, a linear velocity in the stretching axial direction of 60% Z seconds, and a stretching ratio of 3 X 3 It was biaxially stretched.
- the maximum stretching stress per unit cross-sectional area during stretching was 0. IMPa, and the haze value of the obtained film (thickness: 20 m) was 8.2%.
- the oxygen transmission coefficient at 23 ° C and 60% RH was 0.05 ml-mm / m 2 -day-atm, DSC measurement showed no increase in heat of crystallization, and the degree of orientation was 7.
- An unstretched film prepared in the same manner as in Reference Example 1 except that the composite resin C5 was used was simultaneously stretched at a stretching temperature of 135 ° C, a preheating of 15 seconds, a linear velocity in the stretching axial direction of 60% Z seconds, and a stretching ratio of 3 X 3 It was biaxially stretched.
- the maximum stretching stress per unit sectional area during stretching was 2.5 MPa, and the haze value of the obtained film (thickness: 20 m) was 18.9%.
- the oxygen permeation coefficient at 23 ° C and 60% RH was 0.08 ml-mm / m 2 -day-atm, and the heat of crystallization was not detected by DSC measurement, and the degree of orientation was 25.
- the maximum stretching stress per unit sectional area during stretching was 0.3 MPa, and the haze value of the obtained film (thickness: 20 m) was 0.2%.
- 60% RH The oxygen permeability coefficient was 0.08 ml-mm / m 2 -day-atm, the heat of crystallization by DSC measurement was 12 jZg, and the degree of orientation was 17.
- composite resin C1 100 parts by weight of the composite resin C1 was mixed with 0.05 parts by weight of ethylenebisstearylamide (trade name: Alflow H-50T) (composite resin Cl ′).
- composite resin Cl ′ ethylenebisstearylamide
- Resin temperature in injection cylinder b 270 ° C
- Mold flow path in mold 280 ° C
- the multilayer parison obtained by injection molding had a total length of 110 mm, an outer shape of 26.5 mm, and a wall thickness of 4.5 mm.
- 3 Sono Rison obtained had a composite ⁇ C1 7 wt 0/0 contained.
- a stretch blow molding machine manufactured by KRUPP CORPO PLAST, model: LB-01
- the above multilayer parison was biaxially stretch-blown at the same temperature and preheating time as in Reference Example 1.
- the obtained multilayer bottle had a total length of 223 mm, an outer shape of 65 ⁇ , an inner volume of 500 ml (surface area: 0.04 m 2 ), and a bottom shape of a petaloid type.
- the haze value of the obtained multilayer bottle, the heat of crystallization of the gas barrier layer, and the degree of orientation of the gas barrier layer were measured at the bottle neck (at a height of 150 mm from the bottom) and at the body (at a height of 80 mm above the bottom).
- the haze was 1.9% at the neck (288 / zm thickness) and 1.3% at the trunk (325 m thickness).
- Rise The heat of crystallization was 8jZg at the neck and 5jZg at the trunk, and the degree of orientation was 14 at the neck and 21 at the trunk.
- the oxygen permeability of the multilayer bottle was 0.1 Olml / bottle-day O. 21 atm.
- the obtained multilayer bottle had sufficiently enhanced crystallization and orientation of the gas barrier layer, and was excellent in transparency and barrier performance.
- a multilayered Norison was prepared in the same manner as in Example 1 except that the composite resin C2 was used in place of the composite resin C1, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 2 to obtain a multilayer bottle. Got.
- the resulting multilayer bottle had a haze value of 5.4% (thickness of 293 m) at the neck and 2.9% (thickness of 331 m) at the body.
- the heat-up crystallization heat of the gas barrier layer was 3jZg at the neck and 2jZg at the trunk, and the orientation of the gas noria layer was 17 at the neck and 22 at the trunk.
- the oxygen permeability of the multi-layer bottle was 0.007 ml / bottle-day 0.21 atm.
- the obtained multi-layer bottle had sufficiently enhanced crystal barrier and orientation of the gas barrier layer, and was excellent in transparency and barrier performance.
- a multilayered Norison was prepared in the same manner as in Example 1 except that the composite resin C3 was used in place of the composite resin C1, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 3 to obtain a multilayer bottle. Got.
- the resulting multilayer bottle had a haze value of 5.8% (thickness: 284 m) at the neck and 2.8% (thickness: 312 / zm) at the body.
- the heat-up crystallization calorie of the gas barrier layer was 2jZg at the neck and UZg at the body, and the degree of orientation of the gas noria layer was 27 at the neck and 33 at the body.
- the oxygen permeability of the multilayer bottle was 0.005 ml / bottle-day 0.21 atm.
- the resulting multilayer bottle In addition, the crystal barrier and the orientation of the gas barrier layer were sufficiently enhanced, and were excellent in transparency and gas barrier performance.
- a multilayered Norison was prepared in the same manner as in Example 1 except that the composite resin C4 was used in place of the composite resin C1, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 4 to obtain a multilayer bottle. Got.
- the resulting multilayer bottle had a haze value of 6.7% (thickness of 283 m) at the neck and 3.6% (thickness of 322 m) at the body.
- Heat generation due to temperature-induced crystallization of the gas noria layer was not detected at the neck or the torso, and the degree of orientation of the gas noria layer was 28 at the neck and 31 at the torso.
- the oxygen permeability of the multi-layer bottle was 0.004 ml / bottle ⁇ day ⁇ 0.21 atm.
- the obtained multi-layer bottle had sufficiently enhanced crystallization and orientation of the gas barrier layer, and was excellent in transparency and gas barrier performance.
- a multilayer parison was prepared in the same manner as in Example 2, and biaxially stretch blow-molded under the same temperature and preheating time conditions (see below) as in Reference Example 5 to obtain a multilayer bottle.
- the obtained multilayer bottle had a haze value of 9.2% (thickness of 281 m) at the neck and 5.4% (thickness of 308 / zm) at the body.
- the heating crystallization heat of the gas barrier layer was 16 jZg at the neck and 13 JZg at the trunk, and the degree of orientation of the gas noria layer was 19 at the neck and 23 at the trunk.
- the oxygen permeability of the multilayer bottle was 0.006 ml / bottle -day 0.21 atm.
- the obtained multilayer bottle had sufficiently enhanced crystallization and orientation of the gas barrier layer, and was excellent in transparency and gas barrier performance.
- Example 6 A multilayer parison was prepared in the same manner as in Example 2, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 6 to obtain a multilayer bottle.
- the resulting multilayer bottle had a haze value of 4.7% (thickness of 297 m) at the neck and 3.3% (thickness of 314 m) at the body.
- the heat generated by the temperature-induced crystallization of the gas noria layer was not detected at the neck or the torso, and the degree of orientation of the gas noria layer was 14 at the neck and 19 at the torso.
- the oxygen transmission rate of the multilayer bottle was 0.007 ml / bottle ⁇ day ⁇ 0.21 atm.
- the obtained multi-layer bottle had sufficiently enhanced crystallization and orientation of the gas barrier layer, and was excellent in transparency and gas barrier performance.
- a multilayer parison was prepared in the same manner as in Example 3, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 7 to obtain a multilayer bottle.
- the resulting multilayer bottle had a haze value of 28.5% (thickness: 281 m) at the neck and 21.4% (thickness: 311 m) at the trunk.
- the heating crystallization calorie of the gas barrier layer was 3 jZg at the neck and 28 JZg at the body, and the degree of orientation of the gas noria layer was 20 at the neck and 25 at the body.
- the oxygen permeability of the multilayer bottle was 0.014 ml / bottle -day 0.21 atm.
- the obtained multi-layer bottle was inferior in transparency and gas barrier performance so that crystallization of the gas barrier layer was insufficient.
- a multilayer parison was prepared in the same manner as in Example 2, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 8 to obtain a multilayer bottle.
- the resulting multilayer bottle had a haze value of 12.9% (thickness of 292 m) at the neck and 10.5% (thickness of 334 m) at the body. No heat was generated due to the temperature rise crystallization of the gas barrier layer, and the degree of orientation of the gas barrier layer was 7 at the neck and 9 at the trunk.
- the oxygen permeability of the multilayer bottle was 0.012 ml / bottle-day 0.21 atm.
- the obtained multilayer bottle was inferior in transparency and gas barrier performance in which the orientation of the gas barrier layer was not sufficient.
- a multi-layer Norison was prepared in the same manner as in Example 1 except that the composite resin C5 was used instead of the composite resin C1, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 9 to obtain a multi-layer bottle. Got.
- the resulting multilayer bottle had a haze value of 34.5% (thickness: 283 m) at the neck and 29.7% (thickness: 324 m) at the trunk. No heat was generated due to the temperature rise crystallization of the gas barrier layer, and the degree of orientation of the gas barrier layer was 21 at the neck and 28 at the trunk.
- the oxygen permeability of the multilayer bottle was 0.015 ml / bottle-dayO. 21 atm.
- the obtained multilayer bottle was inferior in transparency and gas barrier performance.
- a multilayer Norison was prepared in the same manner as in Example 1 except that polyamide MXD6 was used in place of the composite resin C1, and biaxially stretch blow-molded under the same temperature and preheating time conditions as in Reference Example 10 to form a multilayer bottle. Obtained.
- the obtained multilayer bottle had a haze value of 1.3% (thickness of 282 m) at the neck and 1.0% (thickness of 310 m) at the body.
- the heating crystallization calorie of the gas noria layer was 9 jZg at the neck and 8 jZg at the trunk, and the degree of orientation of the gas noria layer was 15 at the neck and 19 at the trunk.
- the oxygen permeability was 0.017 ml / bottle-day 0.21 atm.
- the first extruder power Nylon 6 (hereinafter abbreviated as N6; 1024B manufactured by Ube Industries) is produced by using three extruders, a feed block, a T-die, a cooling roll, a multi-layer film production device having a pulling machine and the like.
- the second extruder also extrudes the above composite resin (C1)
- the third extruder also extrudes N6.
- N6 layer (45 ⁇ m) Z gas barrier layer (composite resin layer, 45 ⁇ m) ZN6 layer A multilayer unstretched film of two and three layers having a layer configuration of 45 ⁇ m) was produced.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki Co., Ltd.) at the same temperature as in Reference Example 1, a preheating time (100 ° C, 30 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3%.
- X3 produced a multilayer stretched film.
- the thickness of each layer is N6 layer (5 / ⁇ ) ⁇ composite resin layer (5 / ⁇ ) ⁇ 6 layers (5 / zm), haze value is 0.3%, and temperature crystallization of gas noria layer
- the calorific value was 7 jZg, and the oxygen permeability was 9.7 ml / m 2 -day / at m.
- the obtained multi-layer stretched film was excellent in transparency and gas nori performance o
- a multilayer unstretched film of two and three layers was produced in the same manner as in Example 7, except that composite resin C2 was used instead of composite resin C1.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature, preheating time (105 ° C, 30 seconds) as in Reference Example 2, simultaneous stretching speed 60% Z seconds, stretching ratio 3 X
- a multilayer stretched film was prepared.
- the thickness of each layer is N6 layer (5 ⁇ m) Z composite resin layer m) ZN6 layer (5 m)
- haze value is 1.2%
- heat of crystallization is 5j / g
- oxygen the transmittance was 6. 3mlZm 2 'dayZatm.
- the obtained multi-layer stretched film was excellent in transparency and gas nori performance.
- a multilayer unstretched film of two and three layers was produced in the same manner as in Example 7, except that composite resin C3 was used instead of composite resin C1.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature as in Reference Example 3, a preheating time (110 ° C, 30 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3X.
- a multilayer stretched film was prepared.
- each layer is N6 layer (5 ⁇ m) Z composite resin layer m) ZN6 layer (5 m), haze value is 1.3%, temperature rise of gas barrier layer, heat of crystallization is 3j / g, oxygen
- the transmittance was 4.7 mlZm 2 'dayZatm. Many obtained The layer-stretched film was excellent in transparency and gas nori performance.
- a multilayer unstretched film of two and three layers was produced in the same manner as in Example 7, except that composite resin C4 was used instead of composite resin C1.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature as in Reference Example 4, a preheating time (120 ° C, 20 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3X.
- a multilayer stretched film was prepared.
- the thickness of each layer is N6 layer (5 ⁇ m) Z composite resin layer m) ZN6 layer (5 m)
- haze value is 1.5%
- temperature of gas barrier layer is increased
- heat of crystallization is U / g
- oxygen transmittance was 4. 5mlZm 2 'dayZatm.
- the obtained multi-layer stretched film was excellent in transparency and gas nolia performance.
- Example 8 In the same manner as in Example 8, a multilayer unstretched film of two and three layers was produced.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature as in Reference Example 5, a preheating time (95 ° C, 30 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3X.
- a multilayer stretched film was produced.
- each layer is N6 layer (5 ⁇ m) Z composite resin layer (5 ⁇ m) ZN6 layer (5 ⁇ m), the haze value is 3.2%, and the heat generation crystallization heat of the gas barrier layer is 16 jZg
- the oxygen permeability was 6.9 ml / m 2 • dayZatm.
- the obtained multilayer stretched film was excellent in transparency and gasnolia performance.
- Example 8 In the same manner as in Example 8, a multilayer unstretched film of two and three layers was produced.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki Co., Ltd.) at the same temperature as in Reference Example 6, a preheating time (120 ° C., 20 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3%.
- X3 produced a multilayer stretched film.
- each layer is N6 layer (5 ⁇ m) Z composite resin layer (5 ⁇ m) ZN6 layer (5 ⁇ m), haze value is 1.2%, and heat generation due to temperature rise crystallization of gas barrier layer is No detection, and the oxygen transmission rate was 5.9 mlZm 2 'day Zatm.
- the obtained multilayer stretched film was excellent in transparency and gas barrier performance.
- Example 9 In the same manner as in Example 9, two or three types of multilayer unstretched films were produced.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature and preheating time (95%) as in Reference Example 7. (° C., 30 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3 ⁇ 3 to produce a multilayer stretched film.
- a biaxial stretching machine manufactured by Toyo Seiki
- each layer is N6 layer (5 ⁇ m) Z composite resin layer (5 ⁇ m) ZN6 layer (5 ⁇ m), the haze value is 13.0%, and the heat generation crystallization heat of the gas barrier layer is 3 It was jZg, and the oxygen transmission rate was 13.9 mlZm 2 'day Zatm.
- the obtained multilayer stretched film was inferior in transparency and gas barrier performance.
- Example 8 In the same manner as in Example 8, a multilayer unstretched film of two and three layers was produced.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki Co., Ltd.) under the same temperature and preheating time conditions as in Reference Example 8 (135 ° C, 15 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio.
- a 3 ⁇ 3 multilayer stretched film was prepared.
- the thickness of each layer is N6 layer (5 ⁇ m) Z composite resin layer (5 ⁇ m) ZN6 layer (5 ⁇ m).
- Haze value is 11.1%. It was not detected, and the oxygen transmission rate was 11.3 mlZm 2 'dayZatm.
- the obtained multilayer stretched film was inferior in transparency and gasoline performance.
- a multilayer unstretched film of two and three layers was produced in the same manner as in Example 7, except that composite resin C5 was used instead of composite resin C1.
- the obtained multilayer unstretched film was subjected to a biaxial stretching machine (manufactured by Toyo Seiki) at the same temperature as in Reference Example 9, a preheating time (135 ° C, 15 seconds), a simultaneous stretching speed of 60% Z seconds, and a stretching ratio of 3X.
- a multilayer stretched film was prepared.
- each layer is N6 layer (5 ⁇ m) Z composite resin layer m) ZN6 layer (5 m), haze value is 18.9%, temperature rise of gas barrier layer Heat generation due to crystallization is not detected, The oxygen permeability was 15.8 ml / m 2 'dayZatm. The obtained multilayer stretched film was inferior in transparency and gasnolia performance.
- a multilayer unstretched film having two and three layers was produced in the same manner as in Example 7, except that polyamide MXD6 was used instead of the composite resin C1.
- the obtained multilayer unstretched film was subjected to biaxial stretching (manufactured by Toyo Seiki Co., Ltd.) at the same temperature as in Reference Example 10, preheating time (95 ° C., 30 seconds), simultaneous stretching speed 60% Z seconds, stretching ratio 3 X3 produced a multilayer stretched film.
- the thickness of each layer is N6 layer (5 ⁇ m) Z composite resin layer (5 ⁇ m) ZN6 layer (5 ⁇ m), the haze value is 0.2%, and the heating crystallization heat of the gas barrier layer is 1
- the oxygen permeability was 14. OmlZm 2 'dayZatm. Industrial applicability
- the gas-barrier multilayer structure of the present invention is excellent in appearance such as gas-barrier properties, mechanical properties and transparency, and is very useful as a packaging material for foods, beverages, drugs, electronic components, etc. The value is high.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Laminated Bodies (AREA)
- Containers Having Bodies Formed In One Piece (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Wrappers (AREA)
- Blow-Moulding Or Thermoforming Of Plastics Or The Like (AREA)
- Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP20050751408 EP1752286B1 (en) | 2004-06-04 | 2005-06-03 | Gas-barrier multilayer structure and process for producing the same |
AU2005249842A AU2005249842B2 (en) | 2004-06-04 | 2005-06-03 | Gas-barrier multilayer structure and process for producing the same |
US11/628,405 US20080069994A1 (en) | 2004-06-04 | 2005-06-03 | Gas-Barrier Multilayer Structure and Process for Producing the Same |
JP2006514147A JP4930054B2 (ja) | 2004-06-04 | 2005-06-03 | ガスバリア性多層構造物およびその製造法 |
Applications Claiming Priority (2)
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JP2004167033 | 2004-06-04 | ||
JP2004-167033 | 2004-06-04 |
Publications (1)
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WO2005118289A1 true WO2005118289A1 (ja) | 2005-12-15 |
Family
ID=35462799
Family Applications (1)
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PCT/JP2005/010275 WO2005118289A1 (ja) | 2004-06-04 | 2005-06-03 | ガスバリア性多層構造物およびその製造法 |
Country Status (6)
Country | Link |
---|---|
US (1) | US20080069994A1 (ja) |
EP (1) | EP1752286B1 (ja) |
JP (1) | JP4930054B2 (ja) |
CN (1) | CN100564028C (ja) |
AU (1) | AU2005249842B2 (ja) |
WO (1) | WO2005118289A1 (ja) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007007649A1 (ja) * | 2005-07-08 | 2007-01-18 | Mitsubishi Gas Chemical Company, Inc. | 多層ボトル |
WO2008126745A1 (ja) * | 2007-04-05 | 2008-10-23 | Toyo Seikan Kaisha, Ltd. | 多層ポリエステル容器及びその製造方法 |
US20100116707A1 (en) * | 2007-04-05 | 2010-05-13 | Toyo Seikan Kaisha, Ltd. | Pressure-resistant polyester container and process for producing the same |
US20110155309A1 (en) * | 2008-09-08 | 2011-06-30 | Basf Se | Method for manufacturing flat molded members or films |
JP2011126552A (ja) * | 2009-12-16 | 2011-06-30 | Dainippon Printing Co Ltd | 多層プラスチック容器 |
CN102672947A (zh) * | 2011-03-16 | 2012-09-19 | 中本包装株式会社 | 制造多层容器的方法 |
JP2016175390A (ja) * | 2015-03-23 | 2016-10-06 | 住友ベークライト株式会社 | 多層フィルムおよび包装体 |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
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CN102039666A (zh) * | 2009-10-18 | 2011-05-04 | 刘伟民 | 一种输出稳定吹塑容器的制作方法及产品和制作设备 |
US8840826B2 (en) | 2011-03-03 | 2014-09-23 | Nakamoto Packs Co., Ltd. | Method of making multilayer container |
EP2497620B1 (en) * | 2011-03-07 | 2014-01-15 | Nakamoto Packs Co., Ltd. | Method of making multilayer container |
JP6011929B2 (ja) * | 2012-10-31 | 2016-10-25 | 株式会社吉野工業所 | 2軸延伸ブロー成形容器及びその製造方法 |
DE102014014895A1 (de) * | 2014-10-13 | 2016-04-14 | Voxeljet Ag | Verfahren und Vorrichtung zur Herstellung von Bauteilen in einem Schichtbauverfahren |
DE102015006363A1 (de) | 2015-05-20 | 2016-12-15 | Voxeljet Ag | Phenolharzverfahren |
DE102015011503A1 (de) | 2015-09-09 | 2017-03-09 | Voxeljet Ag | Verfahren zum Auftragen von Fluiden |
DE102015011790A1 (de) | 2015-09-16 | 2017-03-16 | Voxeljet Ag | Vorrichtung und Verfahren zum Herstellen dreidimensionaler Formteile |
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JP2001199024A (ja) * | 2000-01-21 | 2001-07-24 | Mitsubishi Gas Chem Co Inc | 多層容器 |
JP2002226612A (ja) * | 2001-02-01 | 2002-08-14 | Mitsubishi Gas Chem Co Inc | ポリアミド延伸フィルム |
JP2004002777A (ja) * | 2002-04-03 | 2004-01-08 | Mitsubishi Gas Chem Co Inc | 二軸延伸フィルム及びその製造方法 |
JP2004098454A (ja) * | 2002-09-09 | 2004-04-02 | Mitsubishi Gas Chem Co Inc | 多層フィルム、及びその製造方法 |
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US6376591B1 (en) * | 1998-12-07 | 2002-04-23 | Amcol International Corporation | High barrier amorphous polyamide-clay intercalates, exfoliates, and nanocomposite and a process for preparing same |
EP1350806B1 (en) * | 2002-04-03 | 2006-09-27 | Mitsubishi Gas Chemical Company, Inc. | Nylon MXD6 based biaxially stretched polyamide film of low permeability to gases and production method thereof |
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2005
- 2005-06-03 JP JP2006514147A patent/JP4930054B2/ja not_active Expired - Fee Related
- 2005-06-03 EP EP20050751408 patent/EP1752286B1/en not_active Expired - Fee Related
- 2005-06-03 US US11/628,405 patent/US20080069994A1/en not_active Abandoned
- 2005-06-03 CN CNB2005800180520A patent/CN100564028C/zh not_active Expired - Fee Related
- 2005-06-03 WO PCT/JP2005/010275 patent/WO2005118289A1/ja not_active Application Discontinuation
- 2005-06-03 AU AU2005249842A patent/AU2005249842B2/en not_active Ceased
Patent Citations (4)
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JP2001199024A (ja) * | 2000-01-21 | 2001-07-24 | Mitsubishi Gas Chem Co Inc | 多層容器 |
JP2002226612A (ja) * | 2001-02-01 | 2002-08-14 | Mitsubishi Gas Chem Co Inc | ポリアミド延伸フィルム |
JP2004002777A (ja) * | 2002-04-03 | 2004-01-08 | Mitsubishi Gas Chem Co Inc | 二軸延伸フィルム及びその製造方法 |
JP2004098454A (ja) * | 2002-09-09 | 2004-04-02 | Mitsubishi Gas Chem Co Inc | 多層フィルム、及びその製造方法 |
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Cited By (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2007007649A1 (ja) * | 2005-07-08 | 2007-01-18 | Mitsubishi Gas Chemical Company, Inc. | 多層ボトル |
US8124204B2 (en) | 2005-07-08 | 2012-02-28 | Mitsubishi Gas Chemical Company, Inc. | Multi-layered bottle |
WO2008126745A1 (ja) * | 2007-04-05 | 2008-10-23 | Toyo Seikan Kaisha, Ltd. | 多層ポリエステル容器及びその製造方法 |
US20100116707A1 (en) * | 2007-04-05 | 2010-05-13 | Toyo Seikan Kaisha, Ltd. | Pressure-resistant polyester container and process for producing the same |
US20100206762A1 (en) * | 2007-04-05 | 2010-08-19 | Toyo Seikan Kaisha, Ltd. | Multilayer polyester container and process for producing the same |
KR101509828B1 (ko) * | 2007-04-05 | 2015-04-06 | 도요세이칸 그룹 홀딩스 가부시키가이샤 | 다층 폴리에스테르 용기 및 그 제조 방법 |
US20110155309A1 (en) * | 2008-09-08 | 2011-06-30 | Basf Se | Method for manufacturing flat molded members or films |
JP2011126552A (ja) * | 2009-12-16 | 2011-06-30 | Dainippon Printing Co Ltd | 多層プラスチック容器 |
CN102672947A (zh) * | 2011-03-16 | 2012-09-19 | 中本包装株式会社 | 制造多层容器的方法 |
JP2016175390A (ja) * | 2015-03-23 | 2016-10-06 | 住友ベークライト株式会社 | 多層フィルムおよび包装体 |
Also Published As
Publication number | Publication date |
---|---|
EP1752286A4 (en) | 2008-10-15 |
AU2005249842B2 (en) | 2010-04-22 |
AU2005249842A1 (en) | 2005-12-15 |
JPWO2005118289A1 (ja) | 2008-04-03 |
EP1752286B1 (en) | 2012-03-21 |
EP1752286A1 (en) | 2007-02-14 |
CN100564028C (zh) | 2009-12-02 |
JP4930054B2 (ja) | 2012-05-09 |
US20080069994A1 (en) | 2008-03-20 |
CN101001749A (zh) | 2007-07-18 |
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