JP3243930B2 - Film laminate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a film laminate, and more particularly to a film laminate suitable for, for example, a gas barrier film.

[0002]

2. Description of the Related Art Conventionally, inorganic layers are formed on a plastic film.
Use anchor coating agent when laminating compound layers
Is not known .

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to develop a film laminate having improved adhesion between a composition layer composed of a high hydrogen bonding resin and an inorganic layer compound and a substrate. And

[0004]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, by using a specific anchor layer, a composition comprising a high hydrogen bonding resin and an inorganic layered compound has been obtained. The inventors have found that the adhesiveness between the material layer and the base material is improved, and have completed the present invention.

That is, the present invention relates to a method for preparing a diene between a composition layer comprising a high hydrogen bonding resin and an inorganic layered compound and a substrate layer.
It is intended to provide a film laminate having an anchor layer containing a base polymer and an ionic aqueous polymer as main components, and a method for producing the same.

The inorganic layer compound used in the present invention is
It is not particularly limited as long as it is an inorganic compound in which the unit crystal layers are stacked on each other to have a layered structure, and has a particle size of 5 μm or less and an aspect ratio of 50 or more and 5000 or less. Regarding gas barrier properties, the aspect ratio is 200
The range of -3000 is more preferable. Aspect ratio is 50
If less than 500, the gas barrier property is not sufficiently developed, and
Anything greater than 0 is technically difficult and economically expensive. Further, when the particle size is 3 μm or less, the transparency becomes better, and when the particle size is 1 μm or less, it is more preferable for applications in which transparency is important. Specific examples of the inorganic layered compound include graphite, a phosphate derivative-type compound (zirconium phosphate-based compound), a chalcogenide [Group IV (Ti, Zr, Hf), Group V (V, N
b, a dichalcogen product of Ta) and Group VI (Mo, W), the formula MX _2. Here, X represents chalcogen (S, Se, Te). And clay-based minerals.

The particle size of the inorganic layered compound used in the present invention refers to a particle size determined by a dynamic light scattering method in a solvent.
Although it is extremely difficult to measure the true particle size in the composition, when the resin is sufficiently swollen with the same kind of solvent as that used in the dynamic light scattering method to be combined with the resin, the inorganic layered compound in the resin is The particle size can be considered to be close to the particle size in the solvent.

The aspect ratio (Z) of the inorganic layered compound used in the present invention is represented by the following relationship: Z = L / a.
[L is a particle diameter determined by a dynamic light scattering method in a solvent, and a is a unit thickness of the inorganic layered compound (unit thickness a is a measurement of the inorganic layered compound alone by a powder X-ray diffraction method or the like. Is a value determined by.)]. Where Z = L / a
In the above, the spacing d obtained from powder X-ray diffraction of the composition
Satisfies the relationship a <d. Here, it is necessary that the value of da is larger than the width of one resin chain in the composition. Z is not necessarily the true aspect ratio of the inorganic layered compound in the composition, but is quite relevant for the following reasons.

It is very difficult to directly measure the aspect ratio of the inorganic layered compound in the composition. The spacing d obtained by powder X-ray diffraction of the composition and the powder X of the inorganic stratiform compound alone
There is a relationship of a <d between unit thicknesses a determined by the line diffraction measurement, and if the value of da is equal to or greater than the width of a single resin chain in the composition, the composition of the inorganic layered compound in the composition It is clear that the resin is inserted between the layers, so that the thickness of the inorganic layered compound is the unit thickness a. In addition, it is extremely difficult to measure the true particle size in the composition, but considering the case where the resin is sufficiently swollen with the same kind of solvent as the solvent used in the dynamic light scattering method and combined with the resin, It can be considered that the particle size of the inorganic layered compound is very close to that in the solvent (however, since the particle size L determined by the dynamic light scattering method does not exceed the major axis Lmax of the inorganic layered compound). , True aspect ratio Lmax /
It is theoretically impossible for a to be lower than the definition Z of the aspect ratio in the present invention. ). From the above, it is considered that the definition of the aspect ratio of the present invention has relatively high validity.
Of course, in the present invention, the aspect ratio and the particle size as defined in the present invention are used and are not necessarily true values.

As the inorganic layered compound having a large aspect ratio, an inorganic layered compound which swells and cleaves in a solvent is preferably used. Among these, a clay mineral having swelling property is preferable. The clay mineral is formed on the tetrahedral layer of silica by using aluminum or magnesium as a central metal.
Type consisting of a two-layer structure having a face layer and silica 4
The face layer is classified into a type having a three-layer structure in which an octahedron layer having aluminum or magnesium as a central metal is sandwiched from both sides. The former includes kaolinites and antigolites, and the latters include smectites, vermiculites and micas depending on the number of interlayer cations. Specifically, kaolinite, dickite, nacrite, halloysite, antigorite, chrysotile, pyrophyllite, montmorillonite, hectorite, tetrasilyl mica, sodium teniolite, muscovite, margarite, talc, vermiculite, phlogopite , Zansophyllite, chlorite and the like.

The solvent for swelling the inorganic layer compound is as follows:
Although not particularly limited, for example, in the case of a natural swellable clay mineral, water, alcohols such as methanol, ethanol, propanol, isopropanol, ethylene glycol and diethylene glycol, dimethylformamide, dimethylsulfoxide, acetone and the like can be mentioned. Alcohols such as methanol are more preferred.

The resin used in the present invention is a high hydrogen bonding resin having a weight percentage of hydrogen bonding groups or ionic groups per unit weight of the high hydrogen bonding resin of 20% to 60%. . More preferred examples include those in which the weight percentage of the hydrogen bonding group or the ionic group per unit weight of the high hydrogen bonding resin satisfies the ratio of 30% to 50%. Among the hydrogen bonding groups or ionic groups of the high hydrogen bonding resin, more preferred are a hydroxyl group, an amino group, a thiol group, a carboxyl group, a sulfonic acid group, a phosphoric acid group, and the like. Group, a sulfonate ion group, a phosphate ion group, an ammonium group, a phosphonium group and the like. Specific examples include, for example, polyvinyl alcohol, an ethylene-vinyl alcohol copolymer having a vinyl alcohol fraction of 41 mol% or more, hydroxymethyl cellulose,
Polysaccharides such as hydroxyethylcellulose, carboxymethylcellulose, amylose, amylopectin, pullulan, curdlan, xanthan, chitin, chitosan, cellulose, etc., polyacrylic acid, sodium polyacrylate, polybenzenesulfonic acid, sodium polybenzenesulfonate, polyethylene Examples include imine, polyallylamine, its ammonium salt, polyvinyl thiol, and polyglycerin.

More preferable examples of the high hydrogen bonding resin include polyvinyl alcohol and polysaccharides.
Such polyvinyl alcohol is obtained by hydrolyzing (saponifying) an acetic ester portion of a vinyl acetate polymer, and is, more precisely, a copolymer of vinyl alcohol and vinyl acetate. Here, the saponification ratio is preferably 70% or more in terms of mole percentage, and more preferably 85% or more. The degree of polymerization is 100 or more and 5000 or more.
The following is preferred.

The polysaccharide is a biopolymer synthesized in a biological system by polycondensation of various monosaccharides, and herein includes those chemically modified based on them. Examples include cellulose and cellulose derivatives such as hydroxymethylcellulose, hydroxyethylcellulose and carboxymethylcellulose, amylose, amylopectin, pullulan, curdlan, xanthan, chitin, chitosan and the like.

In the present invention, a crosslinking agent for a hydrogen-bonding group can be used for the purpose of improving its water resistance (meaning of barrier properties after a water-resistant environmental test). The crosslinking agent for the hydrogen-bonding group is not particularly limited. For example, a titanium-based coupling agent, a silane-based coupling agent, a melamine-based coupling agent, an epoxy-based coupling agent, an isocyanate-based coupling agent, a copper compound, zirconium And the like, and more preferably a zirconium compound.

Specific examples of the zirconium compound include zirconium halides such as zirconium oxychloride, zirconium hydroxychloride, zirconium tetrachloride and zirconium bromide, zirconium sulfate, basic zirconium sulfate and zirconium mineral acid such as zirconium nitrate. Salts, zirconium formate, zirconium acetate, zirconium propionate, zirconium caprylate, zirconium stearate, and other organic acids, zirconium ammonium carbonate, sodium zirconium sulfate, zirconium ammonium acetate, sodium zirconium oxalate, sodium zirconium citrate, sodium citrate Zirconium complex salts such as zirconium ammonium;

The amount of the cross-linking agent for the hydrogen-bonding group is determined by the ratio (K) of the number of moles of the cross-linking group (CN) of the cross-linking agent to the number of moles of the hydrogen-bonding group (HN) of the high hydrogen-bonding resin. That is, K = C
[N / HN] is not particularly limited as long as it is in the range of 0.001 to 10, but is preferably in the range of 0.01 to 1.

The composition ratio (volume ratio) of the inorganic layered compound and the high hydrogen bonding resin used in the present invention is not particularly limited, but generally, the volume ratio of (inorganic layered compound / high hydrogen bonding resin) More preferably, the ratio is in the range of 5/95 to 90/10, and more preferably, the volume ratio is 5/95 to 50/50. In the range of 5/95 to 30/70, the flexibility of the membrane is improved,
In the range of 17 to 83, there are advantages such as a decrease in barrier property due to bending and a decrease in peel strength.
When the volume fraction of the inorganic layered compound is less than 5/95, the barrier property is not sufficient, and when it is more than 90/10, the film forming property is not good.

The method of compounding the composition comprising the inorganic layered compound and the high hydrogen bonding resin is not particularly limited. For example, a liquid in which the resin is dissolved and a dispersion in which the inorganic layered compound has been swollen and cleaved in advance are mixed. After that, a method for removing the solvent, a dispersion obtained by swelling and cleaving the inorganic layered compound is added to the resin, and a method for removing the solvent, adding the inorganic layered compound to the solution in which the resin is dissolved, and forming a swelled and cleaved dispersion. , A method of removing the solvent, and a method of hot-kneading the resin and the inorganic layered compound. Particularly, the former three methods are preferably used as a method for easily obtaining a large aspect ratio.

In the above three methods, after the solvent is removed from the system, the film is heat-aged at 110 ° C. or more and 220 ° C. or less, thereby improving the water resistance (meaning of the barrier property after the water resistance environment test) of the film. I do. The aging time is not limited, but it is necessary that the film reaches at least a set temperature. For example, in the case of a method using a heat medium such as a hot air dryer, the time is preferably from 1 second to 100 minutes. There is no particular limitation on the heat source, too.
Various things can be applied. The water resistance effect is remarkably high when the resin is a highly hydrogen-bonding resin, and when the inorganic layered compound is a swellable clay mineral.

The anchor layer used in the present invention comprises a diene polymer and an ionic aqueous polymer, and the weight ratio (a / b) of diene polymer a to ionic aqueous polymer b is 1 to 3. Is preferred. Examples of the diene-based polymer include polybutadiene, butadiene-styrene rubber, butadiene-acrylonitrile copolymer, isobutylene-isoprene copolymer, nitrile rubber, polychloroprene, and polyisoprene, with polybutadiene being preferred. Among the ionic aqueous polymers, polyethyleneimine and polyallylamine are exemplified, and among them, polyethyleneimine is preferred.

The method for laminating the anchor layer on the substrate is not particularly limited, but a coating method using an anchor coating agent, which is a liquid in which a material for forming the anchor layer is dispersed or dissolved in a solvent, is preferable. Roll coating methods such as direct gravure method, reverse gravure method, microgravure method, two roll beat coating method, bottom feed three reverse coating method, and doctor knife method, die coating method, dip coating method, bar coating method and the like. Methods such as a combined coating method can be mentioned. The solvent is not particularly limited, and examples thereof include water, alcohols such as methanol, ethanol, and isopropanol, and cellosolves such as butyl cellosolve.

The coating thickness of the anchor coating agent is not particularly limited, but the dry thickness is preferably from 0.02 μm to 0.2 μm. More preferably, 0.03 μm to 0.06 μm
Is preferred.

The resin used as the base material includes polyethylene (low density, high density), ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-hexene copolymer, ethylene-octene copolymer, polypropylene , An ethylene-vinyl acetate copolymer, an ethylene-methyl methacrylate copolymer, a polyolefin resin such as an ionomer resin, a polyester resin such as polyethylene terephthalate, polybutylene terephthalate, and polyethylene naphthalate, nylon-6, nylon-
6,6, meta-xylene diamine-adipic acid condensation polymer,
Amide resins such as polymethyl methacrylimide, acrylic resins such as polymethyl methacrylate, polystyrene, styrene-acrylonitrile copolymer, styrene-acrylonitrile-butadiene copolymer, styrene such as polyacrylonitrile, acrylonitrile resin, triacetic acid Hydrophobic cellulose resins such as cellulose and cellulose diacetate; halogen-containing resins such as polyvinyl chloride, polyvinylidene chloride, polyvinylidene fluoride, and Teflon; hydrogen bonding properties such as polyvinyl alcohol, ethylene-vinyl alcohol copolymer, and cellulose derivatives Resin, polycarbonate resin, polysulfone resin, polyethersulfone resin, polyetheretherketone resin, polyphenylene oxide resin, polymethylene oxide resin, liquid crystal resin Such as engineering plastic resins, and the like. As the base material, biaxially stretched polypropylene, polyethylene terephthalate, biaxially stretched polypropylene coated with polyvinylidene chloride called nylon or K coat, polyethylene terephthalate, nylon, or the like is preferably disposed. Because of good sealing properties,
Polyolefin resin, for example, polyethylene (low density, high density), ethylene-propylene copolymer, ethylene-butene copolymer, ethylene-hexene copolymer, ethylene-octene copolymer, polypropylene, ethylene-vinyl acetate copolymer Coalescence, ethylene-methyl methacrylate copolymer and the like are preferably used.

The method for laminating the composition layer on the substrate on which the anchor layer is laminated is not particularly limited. When the substrate is a film or sheet, for example, a coating method of applying a coating solution of the composition to the surface of the substrate, drying and heat-treating, or a method of laminating the composition layer later is preferable. Examples of the coating method include a direct gravure method, a reverse gravure method, a microgravure method, a roll coating method such as a two roll beat coating method, a bottom feed three reverse coating method, a doctor knife method, a die coating method, a dip coating method, and a bar coating method. Examples of the method include a coating method and a coating method combining these methods.

In addition, as long as the effects of the present invention are not impaired,
Various additives such as an ultraviolet absorber, a coloring agent, and an antioxidant may be mixed in a resin composition composed of a high hydrogen bonding resin and an inorganic layer compound.

[0027]

According to the present invention, by using the anchor layer, the adhesion between the composition layer composed of the high hydrogen bonding resin and the inorganic layer compound and the substrate can be greatly improved. . As shown in Examples, when a heat seal layer is further laminated on a laminate of a substrate and a composition layer, excellent peeling resistance can be maintained.

[0028]

EXAMPLES The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto.

The methods for measuring various physical properties are described below. [Measurement of Particle Size] The particle size was measured under conditions of an ultrafine particle size analyzer (BI-90, manufactured by Brookhaven) at a temperature of 25 ° C. and an aqueous solvent. The center diameter determined by the photon correlation method based on the dynamic light scattering method was defined as the particle diameter L. [Aspect Ratio Calculation] Using an X-ray diffractometer (XD-5A, manufactured by Shimadzu Corporation), the diffraction measurement of the inorganic layered compound alone and the resin composition by the powder method was performed. Thereby, the plane spacing (unit thickness) a of the inorganic layered compound was obtained, and further, from the diffraction measurement of the resin composition, it was confirmed that there was a portion where the plane spacing of the inorganic layered compound was widened. Using the particle diameter L obtained by the above method, the aspect ratio Z was determined by the equation of Z = L / a. [Releasability test] Package (90 mm long x 50 mm wide using laminated film)
Was prepared. 10 cc of pure water was put in the bag.
Heat sealing conditions: temperature 208 ° C., time 0.5 second, heat seal width 10 mm (heat sealer: FUJI IM
PULSE T230: FUJI IMPULSE C
O. LTD)) in an incubator (TA
IYO INCUBATOR WB-5). At this time, the package was immersed in 45 mm, and the package was set so as to be perpendicular to the amplitude direction, immersed, and the appearance was observed (test conditions 1, 2).
2). [Measurement of Peeling Strength] The laminated film obtained in Example 1 was cut into strips having a width of 15 mm, and the CPP surface was fixed to an acrylic plate (a device for fixing the acrylic plate to an autograph: 115 mm long × 80 mm wide).
mm (measured at n = 5 for the same sample), and after partially peeling off the end face of the laminate, the laminate was set on an autograph (Autograph AGS-100: manufactured by Shimadzu Corporation) and measured. At this time, an aluminum plate was attached to the OPP side of the peeled portion with double-sided tape, and a wire (length 380 mm, diameter 1.
6 mm) and attached to an autograph chuck (test conditions 3 to 8). [Oxygen permeability measurement conditions] Oxygen permeability measurement device (OX-TRAN 10 / 50A, MOC
ON company) (test condition 9). [Test conditions] (Test condition 1): Amplitude in water at 20 ° C (amplitude width: 32 mm,
The sample was immersed for 8 hours at an amplitude speed of 102 times / min), allowed to stand at room temperature (23 ° C) for 15 hours, and immersed again for 8 hours under the same conditions. (Test condition 2): Amplitude in hot water at 85 ° C (amplitude width: 32 mm)
, Amplitude speed: 102 times / min) for 1 hour. (Test condition 3): After immersion in water for 41 cycles (1 cycle: After immersion in water at 23 ° C for 8 hours, at room temperature (23 ° C / 50% RH))
For 16 hours) and left at room temperature for 15 hours to measure the peel strength. (Test condition 4): After standing at low temperature (−20 ° C.) for 41 cycles (1 cycle: After standing at −20 ° C. in a refrigerator for 8 hours,
Leave at room temperature (23 ° C / 50% RH) for 16 hours.
Let stand for a while and measure peel strength. (Test condition 5): After standing for 41 cycles under high temperature (80 ° C oven) (1 cycle: After standing for 8 hours in a drying oven at 80 ° C, standing for 16 hours at room temperature (23 ° C / 50% RH)) ), And allowed to stand at room temperature for 15 hours to measure the peel strength. (Test condition 6): 6 in a constant temperature and humidity chamber at 40 ° C. and 90% RH.
After standing for 4 days, the peel strength was measured. (Test condition 7): Peel strength was measured after immersion in hot water at 90 ° C. for 30 minutes. (Test condition 8): Peel strength was measured after standing at high temperature and high humidity (23 ° C./41% RH) for 16 hours. (Test condition 9): Oxygen permeability was measured at a relative humidity of 64% RH and a temperature of 31 ° C.

Example 1 Polyvinyl alcohol (PVA117H; manufactured by Kuraray Co., Ltd., saponification degree: 99.6%, polymerization degree: 1700) was replaced with ion-exchanged water (0.1%).
(7 μS / cm or less) to obtain a resin solution (A). Natural montmorillonite (Kunipia F; manufactured by Kunimine Industry Co., Ltd.) was dispersed in A as powder (B) so that the total solid content was 6.0 wt%, to obtain a resin composition (mixture). The particle size of the natural montmorillonite (Kunipia F) is 560 nm, the a value obtained from powder X-ray diffraction is 1.2156 nm, and the aspect ratio Z is 461. In addition, A and B were mixed such that the solid component ratio (volume ratio) of each became inorganic layered compound / resin = 2/8. As a hydrogen bonding cross-linking agent, zirconium ammonium carbonate (manufactured by Daiichi Kagaku Kogyo; Zircosol AC7 (15 in terms of zirconium oxide)
wt% containing aqueous solution)) was added to the mixture so as to have a ratio of 1 mol of zirconium element to 15 mol of hydroxyl groups of polyvinyl alcohol, and this was used as a coating liquid. Thickness 20
The base material is a μm biaxially oriented polypropylene (OPP) film (Pyrene OT; manufactured by Toyobo Co., Ltd.) treated with a surface corona, and an anchor coat agent C (Olivine EL451 (manufactured by Toyo Morton Co., Ltd.) is formed on the base film. ): Gravure coating (test coater; manufactured by Yasui Seiki Co., Ltd .: microgravure coating method, coating speed 3 m) containing polybutadiene / polyethyleneimine = 2/1 (weight ratio) and containing 13.1% of a solid content as a main component. / Min, drying temperature 80 ° C), and further apply gravure coating liquid (test coater; manufactured by Yasui Seiki Co., Ltd.):
A microgravure coating method, a coating speed of 3 m / min, and a drying temperature of 100 ° C.) were performed to obtain a coated film. The dry thickness of the coating layer was 0.7 μm. A non-stretched polypropylene film (manufactured by Toray: Trefan NO: 50 μm thick) subjected to a surface corona treatment using a urethane-based adhesive (Eunoflex J3: manufactured by Sanyo Chemical Industries) for the coating layer of the coated film.
m :) was dry-laminated as an outer layer to obtain a laminated film. 90 mm long x 50 m wide using the laminated film
m was prepared. 10 cc of pure water was inserted into the bag. The heat sealing conditions were a temperature of 208 ° C. and a time of 0.
5 seconds, heat seal width 10mm (heat sealer: FU
JI IMPULSE T230: FUJI IMPU
LSE CO. LTD). Using this package, the package was immersed in water under the test conditions (1) or (2) to perform a peeling test. Table 2 shows the results. No peeling was seen.

The laminated film was subjected to the test conditions (3) to
Adjustment was performed according to (7), and the peel strength was measured. Table 3 shows the results. It showed excellent peel strength.

[Examples 2 to 4] In Example 1, A and B were adjusted according to the test conditions (8) by changing the solid component ratio (volume ratio) of each (Table 1), and then the peel strength was adjusted. It was measured. As a result, excellent peel strength was exhibited. Further, the oxygen permeability was measured according to the test condition (9). Table 4 shows the results.

[Comparative Example 1] The test conditions (1) were obtained using a laminate obtained in the same manner as in Example 1 except that anchor coating agent D was used instead of anchor coating agent C. Or (2)
After immersion in water, a peeling test was performed. Table 2 shows the results. As a result, peeling was observed under both conditions 1 and 2.

[Comparative Example 2] The test conditions (3) to (7) were obtained by using a laminate obtained in the same manner as in Example 1 except that an anchor coat agent E was used instead of the anchor coat agent C. And the peel strength was measured. Table 3 shows the results. As a result, the peel strength was poor.

[Comparative Example 3] The test conditions (3) were used using a laminate obtained in the same manner as in Example 1 except that anchor coating agent D was used instead of anchor coating agent C. Adjusted in (7) to (7), the peel strength was measured. Table 3 shows the results. As a result, the peel strength was poor.

[Comparative Example 4] In Example 1, the laminate obtained without using an anchor coat agent was adjusted according to the test condition (8), and the peel strength was measured. Table 4 shows the results. As a result, the peel strength was poor.

Comparative Example 5 The state of only the OPP film and the CPP film was adjusted according to the test condition (8) using the laminate obtained under the dry lamination conditions in Example 1, and the peel strength was measured. As a result, the peel strength was poor. Further, the oxygen permeability was measured according to Test Condition 9. (Table 4)

[0038]

[Table 1] Abbreviation Anchor coating agent C: (Toyo Morton Co., Ltd .: Olivine EL-451) Anchor coating agent D: (Main agent: Takeda Pharmaceutical Co., Ltd. Takelac ACW-7A, urethane resin), (Curing agent: Takeda Pharmaceutical Co., Ltd.) Takenate NW-4 (2), isocyanate) Anchor coating agent E: (Main agent: Takeda Pharmaceutical Co., Ltd .: Takelac A-3210, polyester polyol), (Curing agent: Takeda Pharmaceutical Co., Ltd .: Takenate A-) 3075, isocyanate) F: Natural montmorillonite (Kunimine Industry Co., Ltd .: Knipia F) H: Polyvinyl alcohol (Kuraray Co., Ltd .: PVA1)
17H (degree of saponification: 99.6 degree of polymerization: 1700) Z: aqueous solution of zircosol ammonium carbonate (manufactured by Daiichi Rare Element Co., Ltd .: zircosol AC-7) OPP20: biaxially oriented polypropylene (OPP) film (Toyobo) CPP50: non-oriented Polypropylene (CPP) film (manufactured by Toray Industries, Inc .: Trefan NO: thickness 50 μm) J: Dry laminating adhesive (manufactured by Sanyo Chemical Industries, Ltd .: Eunoflex J-3)

[0039]

[Table 2] Remarks) ○: No peeling ×: Peeling

[0040]

[Table 3]

[0041]

[Table 4] FIG. 1 and FIG. 2 show the cross-sectional structure of the laminated film of the present invention. In the laminated film of FIG.
A composition layer 2 of a high hydrogen bonding resin and an inorganic layered compound is laminated via an anchor layer 3. In the laminated film of FIG. 2, a composition layer 2 of a high hydrogen bonding resin and an inorganic layered compound is laminated on a base material layer 1 via an anchor layer 3, and a heat seal is further provided outside the composition layer 2. Layer 4 is provided.

[Brief description of the drawings]

FIG. 1 is a film configuration diagram of a cross section of a laminated film of the present invention.

FIG. 2 is a film configuration diagram of a cross section of the laminated film of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base material layer 2 Composition layer of high hydrogen bonding resin and inorganic layered compound 3 Anchor layer 4 Heat seal layer

──────────────────────────────────────────────────の Continuation of front page (51) Int.Cl. ⁷ Identification code FI C08L 47/00 C08L 47/00 79/02 79/02 (72) Inventor Satoshi Funabashi 2-10-1 Tsukahara, Takatsuki-shi, Osaka (56) References JP-A-1-313536 (JP, A) (58) Fields investigated (Int. Cl. ⁷ , DB name) B32B 1/00-35/00 C08L 1/00 -101/16 C08K 7/00-7/28 C09D 1/00-201/10

Claims (5)

(57) [Claims] 1. A diene polymer and an ion-exchanger between a base layer and a composition layer comprising a high hydrogen bonding resin and an inorganic layer compound.
A film laminate comprising an anchor layer containing a water-soluble polymer as a main component . 2. The film laminate according to claim 1, wherein the weight ratio a / b of the diene polymer a to the ionic aqueous polymer b in the anchor layer is in the range of 1 to 3. 3. The film laminate according to claim 1, wherein the diene polymer of the anchor layer is polybutadiene. 4. The film laminate according to claim 1, wherein the ionic aqueous polymer of the anchor layer is polyethylene imine. 5. The film laminate according to claim 1, wherein a heat seal layer is provided outside the composition layer.