WO2014123025A1 - Procédé de production de film à orientation biaxiale, film à orientation biaxiale et film stratifié - Google Patents

Procédé de production de film à orientation biaxiale, film à orientation biaxiale et film stratifié Download PDF

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Publication number
WO2014123025A1
WO2014123025A1 PCT/JP2014/051742 JP2014051742W WO2014123025A1 WO 2014123025 A1 WO2014123025 A1 WO 2014123025A1 JP 2014051742 W JP2014051742 W JP 2014051742W WO 2014123025 A1 WO2014123025 A1 WO 2014123025A1
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Prior art keywords
mass
biaxially stretched
film
stretched film
mxd6
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PCT/JP2014/051742
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English (en)
Japanese (ja)
Inventor
真男 高重
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出光ユニテック株式会社
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Publication of WO2014123025A1 publication Critical patent/WO2014123025A1/fr

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C55/00—Shaping by stretching, e.g. drawing through a die; Apparatus therefor
    • B29C55/28—Shaping by stretching, e.g. drawing through a die; Apparatus therefor of blown tubular films, e.g. by inflation
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
    • C08J5/18—Manufacture of films or sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2077/00—Use of PA, i.e. polyamides, e.g. polyesteramides or derivatives thereof, as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • 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
    • B32B2307/50—Properties of the layers or laminate having particular mechanical properties
    • B32B2307/558—Impact strength, toughness
    • 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
    • B32B2307/582—Tearability
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2439/00—Containers; Receptacles
    • B32B2439/70—Food packaging
    • 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
    • B32B2439/80—Medical packaging
    • 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
    • B32B2457/00—Electrical equipment
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2377/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2377/02—Polyamides derived from omega-amino carboxylic acids or from lactams thereof
    • C—CHEMISTRY; METALLURGY
    • C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
    • C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
    • C08J2477/00—Characterised by the use of polyamides obtained by reactions forming a carboxylic amide link in the main chain; Derivatives of such polymers
    • C08J2477/06—Polyamides derived from polyamines and polycarboxylic acids

Definitions

  • the present invention relates to a method for producing a biaxially stretched film, a biaxially stretched film, and a laminate film.
  • the object of the present invention is to provide a method for producing a biaxially stretched film, a biaxially stretched film, and a laminate film that are excellent in impact strength and tearability.
  • the method for producing a biaxially stretched film of the present invention is a method for producing a biaxially stretched film obtained by biaxially stretching nylon 6 (hereinafter also referred to as Ny6) and metaxylylene adipamide (hereinafter also referred to as MXD6).
  • Ny6 and the melting point are 233 ° C. or higher and 238 ° C. with respect to 100% by mass of the raw material melt-kneaded at a mixing ratio of 40% by mass to 85% by mass and MXD6 of 15% by mass to 60% by mass.
  • the biaxial stretching step is preferably biaxially stretched by a tubular simultaneous biaxial stretching method.
  • the biaxially stretched film of the present invention is produced by the method for producing a biaxially stretched film of the present invention. And in this invention, it is preferable that impact strength is 50000 J / m or more. In the present invention, the Elmendorf tear strength is preferably 65 N / cm or less.
  • the laminate film of the present invention is characterized by having a laminated structure having a layer of the biaxially stretched film of the present invention.
  • a resin composition having a predetermined composition comprising Ny6 and MXD6 is biaxially stretched under a condition of a predetermined maximum strain rate, so that it has excellent tearability and high strength, and a predetermined heat history product is added. Therefore, it is possible to provide an excellent biaxially stretched film that does not cause an intralayer peeling phenomenon.
  • the biaxially stretched film according to this embodiment is obtained by biaxially stretching a polyamide resin composition composed of Ny6 and MXD6.
  • a simultaneous biaxial stretching method or a sequential biaxial stretching method can be used, but in order to keep the maximum strain rate during stretching within the range of the present invention, a tubular simultaneous biaxial stretching is used. It is particularly preferred to use the method.
  • the polyamide resin composition has a melting point of MXD6 of 100% by mass of virgin raw material melt-kneaded in a ratio of Ny6 and MXD6 of 40% by mass to 85% by mass: 15% by mass to 60% by mass. It is obtained by adding a heat history product of 233 ° C. or more and 238 ° C. or less at 5% by mass or more and 40% by mass or less.
  • the chemical formula of Ny6 is shown in the following chemical formula 1
  • the chemical formula of MXD6 is shown in the chemical formula 2 below.
  • the above-mentioned virgin raw material usually means a raw material that is not a mixed raw material having a history in which Ny6 and MXD6 are mixed and melt-kneaded. For example, even if Ny6 and MXD6 have a history of being melt-kneaded independently (for example, recycled products), they are virgin raw materials when they are not mixed and melt-kneaded.
  • the mixing ratio of Ny6 and MXD6 in the virgin raw material is that Ny6 is 40% by mass to 85% by mass and MXD6 is 15% by mass to 60% by mass from the viewpoint of impact strength and easy tearability of the biaxially stretched film. Is preferred.
  • MXD6 in a virgin raw material is less than 15 mass%, there exists a possibility that the effect of easy tearing may not fully be acquired.
  • MXD6 is more than 40% by mass, the impact strength is greatly lowered and the practicality becomes poor.
  • the heat history product is a blended product of Ny6 and MXD6, which has passed through the extruder once.
  • the melting point of MXD6 is 233 ° C. or more and 238 ° C. or less, preferably by a differential scanning calorimeter (DSC), preferably What was hold
  • the heat history product may be a product obtained by recycling the polyamide layer obtained by the present embodiment. Since such a heat history product functions as a compatibilizing agent having affinity for both Ny6 and MXD6, the occurrence of in-layer peeling can be prevented by adding such a heat history product to the polyamide resin mixture.
  • in-layer peeling refers to a phenomenon in which peeling occurs in a polyamide layer when a biaxially stretched film is laminated with an appropriate sealant film and then the seal portion is opened.
  • the mechanism of this delamination is not necessarily clear, but it is considered that Ny6 and MXD6 are oriented in layers in the polyamide layer, and delamination occurs at the interface.
  • the melting point of MXD6 in the heat history product composed of Ny6 and MXD6 refers to the melting point measured in the state before melt-kneading with the virgin raw material.
  • the melting point of MXD6 in the heat history product is less than 233 ° C., the impact strength of the polyamide layer decreases.
  • the melting point of MXD6 in the heat history product is 238 ° C. or higher, the effect of preventing in-layer peeling is reduced.
  • the content of the heat history product is 5% by mass or more and 40% by mass or less based on 100% by mass of the total amount of the virgin raw material.
  • the heat history product is less than 5% by mass, when it is used under severe conditions such as cold forming after being formed into a laminate film, it is easy to cause in-layer peeling in the polyamide layer.
  • the heat history product exceeds 40% by mass, the impact strength of the polyamide layer decreases.
  • the blending ratio of MXD6 in the heat history product is less than 15% by mass (the blending ratio of Ny6 is more than 85% by mass), the effect of preventing in-layer peeling of the polyamide layer tends to be low.
  • the mixing ratio of MXD6 in the heat history product exceeds 40% by mass (the mixing ratio of Ny6 is less than 60% by mass), the impact strength of the polyamide layer tends to decrease.
  • additives can be appropriately added to the polyamide layer.
  • additives include anti-blocking agents (such as inorganic fillers), water repellents (such as ethylene bis stearates), and lubricants (such as calcium stearate).
  • the biaxially stretched film of the present invention can be applied to various uses by laminating other laminate base materials.
  • the laminate substrate include an aluminum layer, a film including the aluminum layer, and a sealant layer.
  • the total thickness of the biaxially stretched film layer and the other laminate base material is preferably 200 ⁇ m or less. When the total thickness exceeds 200 ⁇ m, it is difficult to obtain excellent tearability.
  • an aluminum foil made of a soft material of pure aluminum or an aluminum-iron alloy can be used as the aluminum layer used in the laminate packaging material of this embodiment.
  • the aluminum foil is subjected to a pretreatment such as an undercoat treatment or a corona discharge treatment with a silane coupling agent or a titanium coupling agent, and then laminated on the ONy film.
  • the thickness of such an aluminum layer is preferably 5 ⁇ m or more and 50 ⁇ m or less. Thereby, oxygen, moisture, etc. can be prevented from permeating through the laminate packaging material.
  • the thickness of the aluminum layer is less than 5 ⁇ m, there is a possibility that oxygen, moisture, etc. may permeate through the laminate packaging material.
  • the thickness of the aluminum layer exceeds 50 ⁇ m, it may be difficult to obtain easy tearability.
  • various functional layers such as an antistatic layer, a printed layer, a barrier layer, and a strength reinforcing layer may be laminated.
  • the biaxially stretched film as described above can be suitably produced by a simultaneous biaxial stretching method using a tubular method. Specifically, it can be produced as follows. First, in the raw film manufacturing process, Ny6 is 40% by mass to 85% by mass, MXD6 is melt-kneaded at a blending ratio of 15% by mass to 60% by mass, and Ny6 is 40% by mass to 85% by mass. Hereinafter, MXD6 is blended in an amount of 15% by mass to 60% by mass and a heat history product having a melting point of MXD6 of 233 ° C. or more and 238 ° C. or less is 5% by mass to 40% by mass with respect to 100% by mass of the virgin raw material.
  • the raw fabric bubble is inserted between a pair of nip rolls, and then heated by a heater from the outside through a stretching furnace while gas is being injected into the air bubble. Air is blown from the outside to expand the raw fabric bubble, and taken up by a pair of downstream nip rolls, thereby performing simultaneous biaxial stretching in the MD direction and TD direction by the tubular method to form a stretched bubble.
  • the maximum strain rate is 2.5 sec ⁇ 1 or more in both the MD direction and the TD direction.
  • the maximum strain rate is preferably 3sec -1 or 15 sec -1 or less.
  • the maximum strain rate is calculated by calculating the rate of change in the MD direction and the TD direction at each position from the start of stretching to the end of stretching of the original fabric bubble, and indicates the maximum value.
  • the maximum strain rate can be controlled, for example, by adjusting the discharge amount when the melt is melt-extruded from the annular die, and the size (diameter and length) of the annular die and the drawing furnace.
  • Such a maximum strain rate can be specifically obtained by the following method. First, a film sample in the middle of stretching is collected. Then, a change in the folding diameter (width) of the sample with respect to the moving distance in the moving direction of the sample is measured, and a curve indicating the relationship between the moving distance and the folding diameter (width) of the sample is created. Here, the time from the start of stretching can be calculated from the moving distance.
  • a change in the thickness of the sample with respect to the moving distance in the moving direction of the sample is measured, and a curve indicating the relationship between the moving distance and the thickness of the sample is created.
  • the time from the start of stretching can be calculated from the moving distance.
  • the maximum strain rate in the MD direction and the TD direction can be obtained by obtaining the slope of the portion where the slope of the curve is maximum. It should be noted that when either the MD direction or the TD direction becomes slower than 2.5 sec ⁇ 1 , the maximum strain rate decreases the impact strength (for example, decreases to less than 50000 J / m), and easily tears and linearly cuts. This causes the disadvantage of lowering.
  • the stretched film is put in a tenter type heat treatment furnace, and the biaxially stretched film of this embodiment is obtained by carrying out a heat setting process of heat setting at 160 to 215 ° C. Obtainable.
  • the obtained biaxially stretched film has an impact strength of 50,000 J / m or more, particularly 53000 J / m or more, and an Elmendorf tear strength of 65 N / cm or less, particularly 63 N / cm or less.
  • the melt of the polyamide resin composition having a predetermined composition composed of Ny6 and MXD6 is biaxially stretched under the condition of a predetermined maximum strain rate, so that it is excellent in easy tearing and impact strength.
  • a predetermined heat history product is added, an excellent biaxially stretched film that does not cause an in-layer peeling phenomenon can be provided.
  • the present invention is not limited to this. That is, the present invention has been described primarily with reference to specific embodiments, but with respect to the above-described embodiments without departing from the scope of the technical idea and object of the present invention, the material, quantity, and other details. In this configuration, those skilled in the art can make various modifications. Accordingly, the description of the materials, layer structures, and the like disclosed above is exemplary for easy understanding of the present invention, and does not limit the present invention. Descriptions with names excluding some or all of the limitations are included in the present invention. For example, in this embodiment, the tubular method is adopted as the simultaneous biaxial stretching method, but a tenter method may be used. Moreover, not only simultaneous biaxial stretching but it is good also as sequential biaxial stretching.
  • Example 1 To 100% by mass of virgin raw material with 70% by mass of Ny6 and 30% by mass of MXD6, 25% by mass of a heat history product having a melting point of MXD6 of 236 ° C was added, and after melt extrusion at 270 ° C, The raw film was prepared by cooling.
  • the film was heat-set at 210 ° C. with a heat treatment apparatus to produce a biaxially stretched film having a thickness of 15 ⁇ m.
  • the obtained biaxially stretched film had good stretch moldability and good thickness accuracy.
  • the polypropylene-type sealant film was laminated
  • the peel strength is about 7 N / 15 mm width, but suddenly decreases to about 1 to 2 N / 15 mm width in the middle of the peel test, it can be judged that peeling within the layer has occurred. . And the thing which did not show the behavior of peeling in a layer inside a biaxially stretched film was determined as "A”, and the thing which showed the behavior of peeling in a layer was determined as "B".
  • the tear strength was measured with a biaxially stretched film not laminated with a polypropylene sealant film. Based on the Elmendorf tear strength test (JISK 7128), the tear strength in the MD direction and the TD direction of the biaxially stretched film was measured. The tear strength of 70 N / cm or less was evaluated as “A”, and 71 N / cm or more was evaluated as “B”.
  • the impact strength (J / m) of the biaxially stretched film was measured using a film impact tester (manufactured by Toyo Seiki, 30 Kg-cm 1/2 inch hemispherical head). The measurement results were evaluated according to the following criteria. A: 50000 J / m or more B: Less than 50000 J / m
  • Example 2 Example 1 except that the heat history product of Example 1, the thickness of the biaxially stretched film, the conditions of the tubular biaxial stretching, and the temperature of heat setting in the tenter thermal test apparatus were changed as shown in Table 1 and below. In the same manner as in Example 1, a biaxially stretched film was obtained. And it evaluated similarly to Example 1.
  • FIG. ⁇ History product 15% by mass of heat history product with MXD6 melting point of 237 ° C. added to 100% by mass of virgin raw material ⁇
  • Heat setting temperature 213 °C
  • Example 3 Except for changing the blending ratio of the virgin raw material and the heat history product of Example 1, the conditions of tubular biaxial stretching, and the temperature of heat setting in the tenter thermal test apparatus as shown in Table 1 and below, the same as Example 1 Thus, a biaxially stretched film was obtained. And it evaluated similarly to Example 1.
  • FIG. ⁇ Virgin raw materials: Ny6 75% by mass, MXD6 25% by mass
  • History product 15% by mass of heat history product with MXD6 melting point of 237 ° C. added to 100% by mass of virgin raw material
  • Stretch ratio MD / TD 3.3 / 3.3 Maximum strain rate: MD direction 7.5 sec ⁇ 1 , TD direction 6.7 sec ⁇ 1 ⁇ Heat setting temperature: 213 °C
  • Example 4 Except for changing the blending ratio of the virgin raw material and the heat history product of Example 1, the conditions of tubular biaxial stretching, and the temperature of heat setting in the tenter thermal test apparatus as shown in Table 1 and below, the same as Example 1 Thus, a biaxially stretched film was obtained. And it evaluated similarly to Example 1.
  • FIG. ⁇ History product 15% by mass of heat history product with MXD6 melting point of 237 ° C. added to 100% by mass of virgin raw material ⁇
  • Stretch ratio MD / TD 3.5 / 3.5 • The maximum strain rate: MD direction 9.0sec -1, TD direction 8.2sec -1 ⁇ Heat setting temperature: 213 °C
  • Example 5 A biaxially stretched film was obtained in the same manner as in Example 1 except that the blending ratio of the virgin raw material and the heat history product of Example 1 and the conditions of tubular biaxial stretching were changed as shown in Table 1 and below. It was. And it evaluated similarly to Example 1.
  • FIG. ⁇ Virgin raw materials: Ny6 72% by mass, MXD6 28% by mass Thermal history products: For virgin material 100 wt%, the thermal history article 20 mass% additives, maximum strain rate: MD direction 2.8 sec -1, TD direction 2.5sec -1
  • Example 1 A biaxially stretched film was obtained in the same manner as in Example 1 except that the conditions of the tubular biaxial stretching of Example 1 were changed as shown in Table 1 and the following. And it evaluated similarly to Example 1.
  • Example 2 instead of the tubular biaxial stretching of Example 1, the film was stretched simultaneously in the longitudinal and lateral directions under the following conditions by the simultaneous biaxial stretching tenter method, and then heat-set in the same manner as in Example 1 to obtain a stretched film. It was. And it evaluated similarly to Example 1.
  • Example 3 instead of the tubular biaxial stretching of Example 1, after sequentially stretching in the longitudinal and lateral directions under the following conditions by a sequential biaxial stretching tenter method, the film was heat-fixed in the same manner as in Example 1 to determine the thickness dimension. A stretched film of 25 ⁇ m was obtained. And it evaluated similarly to Example 1.
  • FIG. ⁇ Thickness dimension 25 ⁇ m ⁇
  • Example 4 instead of the tubular biaxial stretching of Example 1, the film was sequentially stretched in the longitudinal and lateral directions under the following conditions by a sequential biaxial stretching tenter method, and then thermally fixed in the same manner as in Example 1 to have a thickness of 15 ⁇ m. A stretched film was obtained. And it evaluated similarly to Example 1.
  • the present invention can be used as a method for producing a biaxially stretched film having excellent impact strength and easy tearability, a biaxially stretched film, and a laminate film in food and pharmaceutical fields, industrial fields, and the like.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Manufacturing & Machinery (AREA)
  • Medicinal Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Polymers & Plastics (AREA)
  • Organic Chemistry (AREA)
  • Mechanical Engineering (AREA)
  • Shaping By String And By Release Of Stress In Plastics And The Like (AREA)
  • Manufacture Of Macromolecular Shaped Articles (AREA)
  • Processes Of Treating Macromolecular Substances (AREA)
  • Laminated Bodies (AREA)

Abstract

Selon la présente invention, entre 5 et 40 % en masse inclus d'un article au passé thermique comprenant du Ny6 et du MXD6 ayant un point de fusion comprise entre 233 et 238 °C inclus est ajouté pour chaque 100 % en masse d'un matériau de départ résultant de la fusion et du mélange selon un rapport de dosage de 40 à 85 % en masse inclus de Ny6 et de 15 à 60 % en masse inclus de MXD6, puis le résultat est soumis à une extrusion-fusion, formant un film d'origine. Le film d'origine est orienté de façon biaxiale d'une manière telle que la vitesse de déformation la plus importante dans une direction MD et dans une direction TD est au moins de 2,5 s-1, puis un thermodurcissage est effectué, obtenant un film à orientation biaxiale présentant une résistance aux chocs d'au moins 50000 J/m et une résistance à la déchirure Elmendorf ne dépassant pas 65 N/cm.
PCT/JP2014/051742 2013-02-08 2014-01-28 Procédé de production de film à orientation biaxiale, film à orientation biaxiale et film stratifié WO2014123025A1 (fr)

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JP2013023658A JP2014151566A (ja) 2013-02-08 2013-02-08 二軸延伸フィルムの製造方法、二軸延伸フィルム、および、ラミネートフィルム
JP2013-023658 2013-10-09

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07268209A (ja) * 1994-03-30 1995-10-17 Mitsubishi Chem Corp フィルム成形用ポリアミド樹脂組成物及びそれよりなる二軸延伸ポリアミドフィルム
JP2007039664A (ja) * 2005-06-27 2007-02-15 Idemitsu Unitech Co Ltd 易裂性延伸フィルム、易裂性ラミネートフィルム、易裂性袋、及び易裂性延伸フィルムの製造方法
JP2008024744A (ja) * 2006-07-18 2008-02-07 Idemitsu Unitech Co Ltd 易裂性収縮フィルム、易裂性ラミネートフィルム、易裂性袋、および易裂性収縮フィルムの製造方法
WO2008020569A1 (fr) * 2006-08-14 2008-02-21 Idemitsu Unitech Co., Ltd. Film de nylon biaxialement orienté, matière d'emballage laminée et procédé de production du film de nylon biaxialement orienté
JP2008045015A (ja) * 2006-08-14 2008-02-28 Idemitsu Unitech Co Ltd 二軸延伸ナイロンフィルム、ラミネート包材及び二軸延伸ナイロンフィルムの製造方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH07268209A (ja) * 1994-03-30 1995-10-17 Mitsubishi Chem Corp フィルム成形用ポリアミド樹脂組成物及びそれよりなる二軸延伸ポリアミドフィルム
JP2007039664A (ja) * 2005-06-27 2007-02-15 Idemitsu Unitech Co Ltd 易裂性延伸フィルム、易裂性ラミネートフィルム、易裂性袋、及び易裂性延伸フィルムの製造方法
JP2008024744A (ja) * 2006-07-18 2008-02-07 Idemitsu Unitech Co Ltd 易裂性収縮フィルム、易裂性ラミネートフィルム、易裂性袋、および易裂性収縮フィルムの製造方法
WO2008020569A1 (fr) * 2006-08-14 2008-02-21 Idemitsu Unitech Co., Ltd. Film de nylon biaxialement orienté, matière d'emballage laminée et procédé de production du film de nylon biaxialement orienté
JP2008045015A (ja) * 2006-08-14 2008-02-28 Idemitsu Unitech Co Ltd 二軸延伸ナイロンフィルム、ラミネート包材及び二軸延伸ナイロンフィルムの製造方法

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