JP2002137323A - Antistatic gas barrier film - Google Patents

Abstract

(57) [Problem] To provide a high gas barrier film having antistatic properties. SOLUTION: An anchor coat layer is formed on at least one surface of a base film containing an antistatic agent, and the anchor coat layer is a layer (A) made of at least one of an acrylic resin and a polyester resin or a mixture thereof. ) And a layer (B) comprising a mixture of an isocyanate compound and a polyester resin, and further comprising an inorganic vapor-deposited layer formed on the anchor coat layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a high gas barrier film having antistatic properties and a laminate using the same.

[0002]

2. Description of the Related Art A vapor deposition film is made by selecting an inorganic substance such as a metal or a metal oxide to be vapor-deposited. Since properties such as conductivity and magnetic recording properties can be changed in various ways, they are used for various applications. For example, it is used as a packaging material, a decoration material, a window glass blocking material, a gold / silver thread material, a capacitor material, a display material, a wiring board material, a magnetic recording material, and the like. As one of such uses, an antistatic agent is usually added and used in a packaging material of a package that dislikes static electricity such as electronic parts and powder.

On the other hand, conventionally, in order to prevent the gas barrier property and the adhesion from being lowered, many methods have been proposed in which a coating layer (anchor coat layer) is provided between a base film of a vapor deposition film and the vapor deposition layer. As such an anchor coat layer, a reaction product of a compound having a polymerizable carbon-carbon unsaturated bond and a polyester (JP-A-1-283136), a specific polyurethane composition (JP-A-2-5083).
No. 7) and a mixed resin composition of an isocyanate compound and a saturated polyester (JP-A-3-86539).

[0004]

However, when vapor deposition is performed on the surface of a film containing an antistatic agent, there is a problem that properties such as gas barrier properties and adhesion are reduced as a deposited film due to the influence of the antistatic agent. For a powdery substance that deteriorates due to moisture absorption or a reaction of oxygen, a packaging material that does not adhere due to gas barrier properties and static electricity is required. In addition, since an electronic component may be broken by static electricity, an antistatic film having a highly reliable gas barrier property in packaging these components is required.

[0005]

Means for Solving the Problems In order to solve the above problems, as a result of intensive studies on the film structure, two different specific anchor coat layers were provided on a base film containing an antistatic agent. It has been found that a film obtained by forming a vapor-deposited film thereon gives good results, and the present invention has been achieved. That is, in the present invention, an anchor coat layer is formed on at least one surface of a substrate film containing an antistatic agent, and the anchor coat layer is a layer made of at least one of acrylic resin and polyester resin or a mixture thereof. (A) and a layer (B) composed of a mixture of an isocyanate compound and a polyester resin,
Further, the present invention resides in an antistatic gas barrier film obtained by forming an inorganic substance deposited layer on the anchor coat layer.

[0006]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail.
The base film raw material of the antistatic gas barrier film of the present invention is not particularly limited as long as it is a resin raw material generally used for films, but polyethylene terephthalate, polyethylene naphthalate, polybutylene terephthalate, polyethylene- Polyester resins such as 2,6-naphthalate, ethylene, propylene,
Polyolefin resins such as homopolymers or copolymers such as butene, nylon 6, nylon 66, nylon 12,
Polyamide resins such as copolymerized nylon, vinyl alcohol resins such as polyvinyl alcohol and ethylene-vinyl alcohol copolymer, polyimide resins, polyetherimide resins, polysulfone resins, polyethersulfone resins, polyetherketone resins, polycarbonate resins ,
A polyvinyl butyral resin or the like, or a polymer copolymer or a mixture thereof can be used.

The antistatic agents used in the present invention include cationic amines such as primary amine salts, tertiary amines and quaternary ammonium compounds, sulfurized oils, sulfated amide oils, sulfated oils and the like. Ester oils, fatty alcohol sulfates, alkyl sulfates, fatty acid ethyl sulfonates, alkyl sulfonates, alkyl naphthalene sulfonates, alkyl benzene sulfonates, phosphate esters and other anionic compounds, polyhydric alcohols Partial fatty acid esters, ethylene oxide adducts of fatty alcohols, ethylene oxide adducts of fatty amines or fatty acid amides, ethylene oxide adducts of alkyl phenols, ethylene oxide adducts of alkyl naphthols, polyethylene glycols, alkyl diethanolamine fats Those nonionic such esters,
Examples include amphoteric ones such as carboxylic acid derivatives and imidazoline derivatives. The amount of the antistatic agent to be added to the substrate film is usually 0.1 to 5% by weight. If the amount of the antistatic agent is too small, a sufficient antistatic function cannot be exhibited. On the other hand, if the amount of the antistatic agent is too large, the optical properties of the film may deteriorate. In the present invention, as long as the effect is not impaired, known additives such as stabilizers, lubricants, crosslinking agents, coloring agents, ultraviolet absorbers, antibacterial agents and the like may be used as additives other than the antistatic agent. Good.

The method for producing the substrate film of the present invention is not particularly limited. For example, a resin material containing an antistatic agent as described above is melted by an extruder and extruded from a flat die or an annular die. Then, it is rapidly cooled to obtain a flat or annular unstretched laminated film. Next, if necessary, the unstretched laminated film is subjected to a tenter-type sequential biaxial stretching method and a tenter-type simultaneous biaxial stretching method in a film flow (vertical axis) direction and a direction perpendicular to the film (horizontal axis) direction. The film is biaxially stretched by a tubular simultaneous biaxial stretching method or the like. The stretching ratio is 2.5 in each of the ordinate direction and the abscissa direction in terms of mechanical strength and gas barrier properties.
It is good to make it up to 10 times. The thickness of the substrate film of the present invention is usually 5 to 500 μm, preferably 10 to 100 μm, in view of strength, flexibility, economy and the like.
Is selected from the range. The base film may be subjected to a surface treatment by a known method such as a corona discharge treatment, a flame treatment, a plasma treatment, a glow discharge treatment, and a chemical treatment. The above single layer or multiple layers may be used,
In the case of a multilayer, a film is formed by coextrusion.

[0009] The antistatic gas barrier film of the present invention comprises an anchor coat layer formed on at least one surface of a base film containing the above antistatic agent, and an inorganic vapor-deposited layer formed on the anchor coat layer. The anchor coat layer is composed of two layers: a layer (A) composed of at least one of acrylic resin and polyester resin or a mixture thereof, and a layer (B) composed of a mixture of isocyanate compound and polyester resin. Consists of layers. The layer A and the layer B or the layer B and the layer A are laminated on the base film in this order.

The layer A of the anchor coat layer is made of at least one of an acrylic resin and a polyester resin or a mixture thereof. The acrylic resin is a resin containing alkyl acrylate and / or alkyl methacrylate as a main component, and is preferably a water-soluble or water-dispersible resin. As such a water-soluble or water-dispersible acrylic resin, the content ratio of the alkyl acrylate and / or alkyl methacrylate component is usually 40 to 40.
The content ratio of the copolymerizable vinyl monomer component having a functional group of 95 mol% is usually 5 to 60 mol%. Examples of the functional group in the vinyl monomer include a carboxyl group, an acid anhydride group, a sulfonic acid group or a salt thereof,
Examples include an amide group or an alkylolated amide group, an amino group (including a substituted amino group), an alkylolated amino group or a salt thereof, a hydroxyl group, an epoxy group, and the like. In particular, a carboxyl group, an acid anhydride Groups and epoxy groups are preferred. Examples of the alkyl group of the alkyl acrylate and the alkyl methacrylate include, for example, a methyl group, an n-propyl group, an isopropyl group, an n-butyl group, an isobutyl group, a 2-ethylhexyl group, a lauryl group, a stearyl group, and a cyclohexyl group. Can be Examples of the compound having a carboxyl group or an acid anhydride include, for example, acrylic acid, methacrylic acid, itaconic acid, maleic acid, and the like, alkali metal salts thereof, alkaline earth metal salts, ammonium salts, and the like. And maleic acid. Examples of the compound having a sulfonic acid group or a salt thereof include vinyl sulfonic acid, styrene sulfonic acid, metal salts of these sulfonic acids such as sodium, and ammonium salts.

The polyester resin is preferably a water-soluble or water-dispersible saturated or unsaturated polyester.
As the dicarboxylic acid component of the saturated polyester, for example, terephthalic acid, isophthalic acid, aromatic dicarboxylic acid such as 2,5-naphthalenedicarboxylic acid, adipic acid,
Aliphatic dicarboxylic acids such as azelaic acid and sebacic acid,
Oxycarboxylic acids, such as oxybenzoic acid, and their ester-forming derivatives. Examples of the glycol component include aliphatic glycols such as ethylene glycol, 1,4-butanediol, diethylene glycol, and triethylene glycol; alicyclic glycols such as 1,4-cyclohexanedimethanol; and aromatics such as p-xylene diol. Examples thereof include diol, poly (oxyalkylene) glycol such as polyethylene glycol, polypropylene glycol, and polytetramethylene glycol. Examples of the unsaturated polyester include JP-B Nos. 45-2201, 46-2050, and 44-201.
7134, JP-A-48-78233, 50
As disclosed in JP-A-58123, an unsaturated resin having a copolymerizable unsaturated group in a resin skeleton obtained by reacting a raw material component containing a copolymerizable unsaturated group with another raw material component. Polyester or JP-B-49-4791
No. 6, JP-A No. 50-6223, etc., after obtaining a saturated polyester having no copolymerizable unsaturated group, a functional group such as a hydroxyl group or a carboxyl group present in the saturated polyester is obtained. An unsaturated polyester obtained by adding a vinyl monomer having a reactive functional group and a vinyl group to a saturated polyester is exemplified. The aqueous polyester-based resin preferably contains a carboxyl group in order to increase the affinity with an aqueous medium, and the carboxyl group may have a counter ion.

Next, the layer B of the anchor coat layer is composed of two layers of a layer (B) composed of a mixture of an isocyanate compound and a polyester resin. The mixing ratio of the isocyanate compound and the polyester resin is usually 30 to 80% by weight of the isocyanate compound and 70 to 20% by weight of the polyester resin. Outside this range, the adhesion may be insufficient. As the isocyanate compound here, hexamethylene diisocyanate, diphenylmethane diisocyanate, a condensate of 3 mol of hexamethylene diisocyanate and 1 mol of trimethylolpropane, triphenylmethane triisocyanate, and other various isocyanate compounds can be used. As the polyester resin, the same resin as that used in the layer A can be used.

As the components of the above anchor coat layer, in addition to the above components, an oxazoline group-containing resin, a urethane resin, an ethylene vinyl alcohol resin, a vinyl modified resin,
Epoxy resins, modified styrene resins, modified silicone resins, alkyl titanates, and the like, and other curing agents and coupling agents can be used in combination. Further, in order to improve the anchoring property (blocking property), water resistance, solvent resistance, and mechanical strength of the anchor coat layer, for example, an epoxy-based crosslinking agent may be used.
Methylolated or alkylolated urea-based, melamine-based, guanamine-based, acrylamide-based, polyamide-based compounds, aziridine compounds, blocked polyisocyanate compounds, silane coupling agents, titanium coupling agents, zircoaluminate coupling agents , A peroxide, a photoreactive vinyl compound, a photosensitive resin and the like may be contained in a small amount as long as the adhesiveness is not deteriorated. Furthermore, in order to improve sticking property and slipperiness, as inorganic fine particles, for example, silica, silica sol, alumina, alumina sol, zirconium sol, kaolin, talc, calcium carbonate, titanium oxide, barium salt, carbon black,
It may contain molybdenum sulfide, antimony oxide sol, etc., if necessary, an antifoaming agent, a coating improver, a thickener,
It may contain an antistatic agent, an organic lubricant, organic polymer particles, an antioxidant, an ultraviolet absorber, a foaming agent, a dye, a pigment, and the like.

The above-mentioned anchor coat layer can be applied at the time of forming the base film or at the time of forming the base film, and any method can be adopted. As a method of applying the anchor coat liquid (coating liquid) to the base film, coating is performed using a reverse roll coater, a gravure coater, a rod coater, an air doctor coater, or a coating device other than these. When the anchor coat layer is provided in the film forming process of the biaxially stretched film, the anchor coat solution is applied to the film which has been stretched uniaxially in the longitudinal direction, stretched in the dry or undried state in the horizontal direction, and then heat-treated. Is preferably applied. Such a method is advantageous in terms of manufacturing cost because film formation, coating and drying can be performed simultaneously. The coating layer can be provided on one side or both sides, and when provided on both sides, the coating layers may be the same or different. In order to improve the applicability and adhesiveness to the film, the film surface may be subjected to a chemical treatment, a discharge treatment or the like before the application. The thickness of each anchor coat layer is usually 0.01 to 5 μm, preferably 0.02 to 1 μm.
m. If the thickness is less than 0.01 μm, it tends to be difficult to obtain a uniform resin layer. If the thickness is more than 5 μm, the slipperiness tends to decrease and the film tends to be difficult to handle.

In the antistatic gas barrier film of the present invention, the inorganic substance deposited on the anchor coat layer includes aluminum, silicon, magnesium, palladium, and the like.
Examples include metals such as zinc, tin, nickel, silver, copper, gold, indium, stainless steel, chromium, and titanium, and oxides of these metals or mixtures thereof. The thickness of the deposited film is appropriately selected depending on the final use of the deposited film. On at least one side of the substrate film obtained as described above, a deposited film having a thickness of usually 50 to 3000 Å is formed. If the thickness of the vapor-deposited film is too thin, the moisture-proof property is insufficient. On the other hand, if it is too thick, the vapor-deposited film may crack and peel off. As a vapor deposition method, any conventionally known method such as a vacuum vapor deposition method, a sputtering method, an ion plating method, or a plasma CVD method can be used. For example, when a silicon oxide thin film layer is formed on a base film by a vacuum deposition method, silicon, silicon monoxide, silicon dioxide,
Or a mixture thereof, usually 10 ^@ 3 to 10 ^over 5 the To
Under a vacuum of rr, heat evaporation is performed by an electron beam, resistance heating, or high-frequency heating. Further, a reactive evaporation method performed while supplying oxygen gas can also be employed.

In the antistatic gas barrier film of the present invention described above, a sealant layer is further provided on the inorganic vapor-deposited layer, so that the range of application as various packaging materials is expanded. The sealant layer may be directly laminated on the inorganic vapor deposition layer, or may be indirectly laminated by providing a coating layer on the inorganic vapor deposition layer. When a coating layer is provided, a urethane-based adhesive, an acrylic-based adhesive, a polyester-based adhesive, or the like can be used. Examples of the sealant layer include olefin-based resin films such as polyethylene, ethylene-vinyl acetate copolymer, polypropylene and ethylene-based copolymer, and heat-sealing films such as ionomer resins. The above lamination is performed by a known method such as a dry lamination method and an extrusion lamination method. Further, an antistatic property can be imparted to the sealant layer by adding an antistatic agent.

[0017]

EXAMPLES Hereinafter, the present invention will be described in more detail with reference to examples, but the present invention is not limited to the following examples unless it exceeds the gist of the present invention. In addition, the evaluation method of the film in the following Examples is as follows. (1) Oxygen permeability (cc / m ² · day · atm) According to ASTM-D3985, an oxygen permeability measuring device (OX-TRAN100, manufactured by Modern Control Co., Ltd.) was used at a temperature of 25 ° C. and a relative humidity of 80. %. (2) Water vapor transmission rate (g / m ² · day) Water vapor transmission rate measuring device (Pead manufactured by Modern Control Co., Ltd.)
rmatran-W1) was used at a temperature of 40 ° C. and a relative humidity of 90%. (3) Laminating strength (g / 15 mm) As described in Example 1 below, a laminate obtained by applying an adhesive to the vapor-deposited surface of a vapor-deposited film and laminating an unstretched polyethylene film is used as a strip having a width of 15 mm. And peeled off part of the end, and used a peel tester at a speed of 100 mm / min.
The mold was peeled off, and the laminate strength was determined.

EXAMPLE 1 Polyethylene terephthalate containing 1% by weight of sodium dodecylbenzenesulfonate and having an intrinsic viscosity of 0.62 dl / g was used as an antistatic agent by an extruder at 280-300.
It was extruded from a die at a temperature of ° C. and cast on a cooling drum while using an electrostatic adhesion method, to obtain an amorphous polyester sheet having a thickness of about 150 μm. The above sheet was stretched 3.5 times in the machine direction at 95 ° C, and then 3.5 times in the transverse direction at 110 ° C.
Stretched twice and heat-treated at 230 ° C to obtain a surface resistivity of 10 ¹⁰
A biaxially stretched polyester film (antistatic-PET film) having a Ω / □ (measured at a temperature of 23 ° C. and a humidity of 50%) and a thickness of 12 μm was obtained. Next, 40 parts by weight of ethyl acrylate, 30 parts by weight of methyl methacrylate, 2 parts by weight of methacrylic acid
A mixture of 0 parts by weight and 10 parts by weight of glycidyl methacrylate was subjected to solution polymerization in ethyl alcohol to obtain 60% by weight of an aqueous acrylic resin and 40% by weight of an aqueous polyester resin (Polyester WR-961 manufactured by Nippon Synthetic Chemical Industry Co., Ltd.). The mixed resin is gravure coated, and the coating thickness after drying is set to 0.1.
An anchor coat layer (layer A) of 1 μm was formed.

The surface is gravure coated with a resin in which an isocyanate compound (Coronate L, manufactured by Nippon Polyurethane Co., Ltd.) and a saturated polyester (Byron 300, manufactured by Toyobo Co., Ltd.) are mixed at a ratio of 1: 1. An anchor coat layer (B layer) of 1 μm was formed. Further, the above film was supplied to a vacuum evaporation apparatus, and 5 × 10 ⁻⁵
Under a Torr vacuum, a silicon dioxide thin film layer having a thickness of 200 Å is formed on the anchor coat layer by heating and evaporating silicon monoxide having a purity of 99.9% by an electron beam heating method of 10 kW to form a vapor-deposited polyester. A film was obtained. Next, a urethane-based adhesive (adhesive AD- manufactured by Toyo Morton Co., Ltd.) was applied to the vapor-deposited surface of the vapor-deposited polyester film.
900 and CAT-RT-85 in a ratio of 10: 1.5) were applied and dried to form an adhesive resin layer having a thickness of 4 μm. This adhesive resin layer and an unstretched polyethylene film (TUX-TCS manufactured by Tokyo Cellophane) having a thickness of 50 μm were laminated. After aging the obtained laminated film at 40 ° C. for 4 days, the lamination strength of the laminated film,
The oxygen permeability and the moisture permeability were measured and evaluated. Table 1 shows the results.
Shown in

Example 2 Table 1 shows the evaluation results of the laminated films obtained in the same manner as in Example 1 except that the acrylic coating was used as the anchor coating agent for the layer A used in Example 1. Example 3 Table 1 shows the evaluation results of the laminated films obtained in the same manner as in Example 1, except that the anchor coating agent for the layer A used in Example 1 was changed to polyester resin only. Example 4 The vapor deposition material used in Example 1 was changed to aluminum having a purity of 99.99%, and oxygen gas was introduced at the time of vapor deposition to ^obtain 3 × 10 ^−4.
Table 1 shows the evaluation results of the laminated film obtained by the same method as in Example 1 except that the aluminum oxide thin film was formed under a vacuum of Torr.

Example 5 An amorphous polyester sheet obtained in the same manner as in Example 1 was stretched 3.5 times in the longitudinal direction at 95 ° C., and then the same mixture of acrylic resin and polyester resin as in Example 1 was obtained. The resin was applied and then stretched 3.5 times in the transverse direction at 110 ° C.
Heat treatment was performed at 30 ° C. to obtain a biaxially oriented polyester film having a thickness of 0.1 μm and a thickness of 12 μm of the anchor coat layer (A layer). Next, an isocyanate compound (Coronate L manufactured by Nippon Polyurethane Co., Ltd.) is placed on layer A of this film.
And saturated polyester (Byron 300 manufactured by Toyobo Co., Ltd.) mixed at a ratio of 1: 1 by gravure coating, and an anchor coat layer (B) having a coating thickness of 0.1 μm after drying.
Layer). With respect to the film on which the anchor coat layers of A and B were formed, the evaluation results of the laminated film obtained by providing the vapor deposition layer and the sealant layer in the same manner as in Example 1 are shown in Table 1.
Shown in

Example 6 The anchor coating agent for the layer A used in Example 3 was replaced with an oxazoline group-containing polymer (Epocross WS manufactured by Nippon Shokubai Co., Ltd.).
-500) 60% by weight, water-based acrylic resin 20 of the same example
Table 1 shows the evaluation results of the laminated film obtained in the same manner as in Example 3 except that the mixed resin was changed to a mixed resin of 20% by weight of an aqueous polyester resin. Example 7 The polyethylene terephthalate resin of Example 3 was changed to nylon 6 resin, extruded at 280 ° C. from an extruder into a sheet, quenched and fixed by a cooling drum to obtain an amorphous film. After stretching this film three times in the longitudinal direction at 50 ° C., an anchor coat was performed in the same manner as in Example 3, and the film was further stretched eight times in the transverse direction.
The film is stretched 3 times at 0 ° C. (stretching ratio 3 × 3 times),
Heat-fixed for 15 seconds, thickness 15μm, surface resistivity 1
A biaxially stretched nylon film (antistatic-ONY film) having a resistance of 0 ¹⁰ Ω / □ (temperature 23 ° C., humidity 50%) was obtained. The evaluation results of the laminated film obtained by providing the deposited layer and the sealant layer on the film in the same manner as in Example 1 are shown in Table 1.
It is shown in FIG. Example 8 An unstretched sheet was obtained by changing the polyethylene terephthalate resin of Example 3 to a polypropylene resin (2.3 g / 10 minutes MFR). This unstretched sheet was stretched 5 times at a temperature of 130 ° C., and anchor-coated as in Example 3. Subsequently, the longitudinally stretched sheet is horizontally oriented at 165 ° C. for 1 hour.
Biaxially stretched polypropylene film (antistatic-OPP) which is stretched 0 times, heat-set at 160 ° C., and has a thickness of 20 μm and a surface resistivity of 10 ¹¹ Ω / □ (temperature 23 ° C., humidity 50%).
Film). Table 1 shows the evaluation results of the laminated film obtained by providing a vapor deposition layer and a sealant layer on the film in the same manner as in Example 1.

Comparative Example 1 A polyethylene terephthalate film containing an antistatic agent used in Example 1 was provided with a vapor deposition layer and a sealant layer in the same manner as in Example 1 except that no anchor coat layer was provided. Table shows the evaluation results of the laminated films
It is shown in FIG. Comparative Example 2 A laminated film obtained by providing a vapor deposition layer and a sealant layer in the same manner as in Example 1 except that the nylon film containing the antistatic agent used in Example 4 was not provided with an anchor coat layer. Table 1 shows the evaluation results.

Comparative Example 3 Table 1 shows the evaluation results of the laminated film obtained in the same manner as in Example 1 except that the anchor coat A layer was not provided. Comparative Example 4 Table 1 shows the evaluation results of the laminated film obtained in the same manner as in Example 1 except that the anchor coat B layer was not provided in Example 3.

Reference Example 1 A single-layer film having a surface resistivity of 10 ¹⁵ Ω / □ (temperature of 23 ° C., humidity of 50%) using a raw material to which no antistatic agent was added in the polyethylene terephthalate film used in Comparative Example 1 was used. Otherwise, a laminated film was obtained in the same manner as in Comparative Example 1. Table 1 shows the evaluation results of the obtained laminated films. For films without antistatic agents, even without an anchor coat layer, a certain degree of lamination strength,
It can be seen that oxygen permeability and moisture permeability can be obtained. Reference Example 2 The polyethylene terephthalate film used in Comparative Example 4 was formed using a raw material to which an antistatic agent was not added to form a single-layer film having a surface resistivity of 10 ¹⁵ Ω / □ (temperature 23 ° C., humidity 50%). Otherwise, a laminated film was obtained in the same manner as in Comparative Example 4. Table 1 shows the evaluation results of the obtained laminated films. It can be seen that, unlike Comparative Example 4, the film containing no antistatic agent had good lamination strength, oxygen permeability and moisture permeability.

[0026]

[Table 1]

[0027]

According to the present invention, an antistatic film having a high adhesive strength between each layer and the sealant layer and having excellent gas barrier properties is provided, so that its industrial value is extremely high. large.

 ──────────────────────────────────────────────────の Continued on the front page F-term (reference) 4F100 AA00E AK25B AK25D AK41B AK41C AK41D AK41E AK51C AK51E AL05B AL05C AL05D AL05E AR00A BA05 BA06 BA10C BA10E CA22A EH66E EJ37 GB15 J41 JG02 JK03

Claims (4)

[Claims] An anchor coat layer is formed on at least one surface of a substrate film containing an antistatic agent, and the anchor coat layer is a layer made of at least one of acrylic resin and polyester resin or a mixture thereof. A) and an antistatic gas barrier film comprising a layer (B) comprising a mixture of an isocyanate compound and a polyester resin, and further comprising an inorganic vapor-deposited layer formed on the anchor coat layer. 2. An anchor coat layer comprising at least one of an acrylic resin and a polyester resin or a mixture thereof, wherein at least one anchor coat layer is formed after applying an anchor coat liquid.
2. The antistatic gas barrier film according to claim 1, wherein the film is stretched in one direction. 3. The antistatic gas barrier film according to claim 1, which is a substrate film containing 0.1 to 5.0% by weight of an antistatic agent. 4. An antistatic gas barrier laminate according to claim 1, wherein the sealant layer is further provided on the inorganic vapor-deposited layer of the antistatic gas barrier film according to claim 1.