KR101025668B1 - Conductive polymer composition, and antistatic polymer film fabricated using the same - Google Patents

Abstract

It provides a conductive polymer composition and an antistatic polymer film prepared using the same. The composition contains 0.05 to 0.5 parts by weight of the conductive polymer based on solids with respect to 100 parts by weight of the water-dispersible polyurethane resin. The conductive polymer composition may further include an amino resin crosslinking agent. The amino resin crosslinking agent may be contained in an amount of 10 to 100 parts by weight based on 100 parts by weight of the polyurethane resin solids based on solids. Coating film using such a conductive polymer composition may be excellent in adhesion to the base film, chemical resistance and hardness.

Description

Conductive polymer composition, and antistatic polymer film fabricated using the same

The present invention relates to a conductive polymer composition, and more particularly to a conductive polymer composition for an antistatic polymer film.

Static electricity generated from electronic devices may cause impurities or dust to adhere to the product, and may cause a fire if organic solvents are used in the manufacturing process, and may damage the electronic devices. Therefore, there is a need for an antistatic layer capable of discharging the electric charge stored on the product surface.

Research into using a conductive polymer in such an antistatic layer is underway. However, the formation of the antistatic layer using the conductive polymer due to the processing difficulties, low thermal and atmospheric stability, low chemical resistance and low hardness of the conductive polymer, there are many situations that need to be improved for commercialization.

The problem to be solved by the present invention is to provide a conductive polymer composition capable of forming an antistatic film excellent in chemical resistance and hardness, and an antistatic polymer film formed using the same.

Technical problems of the present invention are not limited to the technical problems mentioned above, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

One aspect of the present invention to achieve the above object provides a conductive polymer composition. The composition contains 0.05 to 0.5 parts by weight of the conductive polymer based on solids with respect to 100 parts by weight of the water-dispersed polyurethane resin solids.

Another aspect of the present invention to achieve the above object provides an antistatic polymer film. The antistatic polymer film includes a base film and an antistatic film formed using the conductive polymer composition on the base film.

According to the present invention, the water-dispersible polyurethane resin is a material capable of forming a coating film using an aqueous solvent, and may have excellent compatibility with a conductive polymer. In addition, the coating film using the conductive polymer composition containing the conductive polymer and the water-dispersed polyurethane resin may be excellent in adhesion to the base film, chemical resistance and hardness.

The technical problems of the present invention are not limited to the above-mentioned technical problems, and other technical problems not mentioned will be clearly understood by those skilled in the art from the following description.

Hereinafter, preferred embodiments of the present invention will be described in more detail in order to describe the present invention in more detail. However, the present invention is not limited to the embodiments described herein but may be embodied in other forms.

The conductive polymer composition according to an embodiment of the present invention contains a water-dispersible polyurethane dispersion as the conductive polymer and the base resin. The composition may contain 0.05 to 0.5 parts by weight of the conductive polymer solids based on 100 parts by weight of the polyurethane resin solids. When the solid content of the conductive polymer is 0.05 to 0.5 parts by weight, the antistatic film formed using the conductive polymer composition may exhibit a surface electrical resistance of 10E4 to 10E10Ω / sq to perform an appropriate antistatic function.

The conductive polymer may be polyaniline, polypyrrole, or polythiophene, but may preferably be polyethylenedioxythiopene (PEDOT) which exhibits excellent transparency. More preferably, it may be PEDOT: PSS doped with polystyrenesulfonate (PSS) which is a poly anion. Such PEDOT: PSS may be provided in the form of an aqueous dispersion dispersed in an aqueous solution.

The water-dispersed polyurethane resin is a material capable of forming a coating film using water as a solvent, it can be excellent in compatibility with the conductive polymer aqueous dispersion. In addition, the polymer base film is not particularly excellent in adhesion to the polyester film, but is also very excellent in wear resistance and chemical resistance.

Such a water dispersion type polyurethane resin may be anionic. In addition, the water-dispersed polyurethane resin may be an aliphatic poly (carbonate-diol) type or an aliphatic polyester (aliphatic polyester) type.

The conductive polymer composition may further include a low resistance derivative. The low resistance derivative may be contained in 10 to 100 parts by weight based on 100 parts by weight of the polyurethane resin solids. The low resistance inducing agent is a material which additionally dopes the conductive polymer, and may be a monomolecular anion, for example, monomolecular alkyl sulfonate. The monomolecular alkyl sulfonate may be dimethyl sulfonate. Such monomolecular anions not only have excellent compatibility with the water-dispersible polyurethane resin and the conductive polymer, but also improve the storage stability of the conductive polymer composition.

The conductive polymer composition may further include a crosslinking agent. The crosslinking agent may be polyaziridine, amino resin, or a combination thereof. When the crosslinking agent is a polyaziridine, the polyaziridine may be contained in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the polyurethane resin solids based on solids. On the other hand, when the crosslinking agent is an amino resin, the amino resin may be contained in an amount of 10 to 100 parts by weight, preferably 10 to 60 parts by weight based on 100 parts by weight of the polyurethane resin solids based on solids. When the crosslinking agent is contained in the content range, the antistatic film using the conductive polymer composition may have appropriate chemical resistance and hardness.

The polyaziridine or the amino resin may crosslink the polyurethane while reacting with the terminal carboxyl group of the water-dispersible polyurethane resin to form an amino ester. As a result, the hardness and the solvent resistance of the coating film can be improved. The polyaziridine may be pentaerythritol-tris- (β- (N-aziridinylpropionate) (Pentaerythritol-tris- (β- (N-aziridinyl) Propionate).

Preferably, the crosslinking agent may be melamine as an example of an amino resin having an excellent effect of improving hardness and solvent resistance of the coating film. The melamine may be excellent in compatibility with the water-dispersed polyurethane resin, methoxymethyl melamine that can lower the drying temperature and shorten the drying time.

In the case of using the melamine as a crosslinking agent, an acid catalyst may be further added. In this case, the drying temperature of the coating film of the conductive polymer composition in which the melamine is added as a crosslinking agent can be lowered, and the drying time can be shortened. The acid catalyst may be a blocked organic acid, for example a blocked p-toluene sulfonic acid. The acid catalyst may be used in an amount of 0.2 to 5.0 parts by weight based on 100 parts by weight of the crosslinking agent.

The conductive polymer composition may further contain an additive. The additive may be at least one selected from the group consisting of a leveling agent, a slip agent, a defoamer, and a neutralizing agent.

The smoothing agent is used to reduce the surface tension of the composition to improve the spreadability and appearance during painting, it may be a silicone-based or acetylene diol-based surfactant. In the case of the aqueous coating solution, since the surface tension of water is higher than that of the organic solvent, the wettability of the substrate to be coated may be poor. By adding the leveling agent, the wettability may be improved. Preferably the leveling agent is acetylene diol type 2,4,7,9-tetramethyl-5 dekin-4,7-diol (2,4,7,9-tetramethyl-5 decyne-4,7-diol) yl Can be. The leveling agent may be contained in 0.5 to 5 parts by weight based on 100 parts by weight of the polyurethane resin solids. If the content of the leveling agent is 0.5 parts by weight or less, there is a problem that the coating film is poorly adhered to the material due to the lack of the wetting effect of the coating solution. have.

The slip agent is an additive for improving slip property of the coating film, and may be polyethylene wax. The slip agent may be contained in 0.5 to 5 parts by weight based on 100 parts by weight of the polyurethane resin solids.

The antifoaming agent is to improve workability by removing bubbles during preparation or coating of the composition, and may be an acetylene diolge material such as 2,4,7,9-tetramethyl-5 dekin-4,7-diol. The antifoaming agent may be contained in an amount of 0.5 to 5.0 parts by weight based on 100 parts by weight of the polyurethane resin solid content.

The neutralizer is used to control the pH of the conductive polymer composition and may be DMEA (N, N-Dimethylethanolamine).

The conductive polymer composition may be diluted using a diluent so that the content of solids is 0.1 to 10 wt%. If the amount of the solid content is too small, there is a problem that the antistatic function can not be sufficiently expressed, and if too much, the transparency of the antistatic film may be lowered. The diluent may be water, alcohol or a mixed solution thereof. The alcohol may be methyl alcohol, ethyl alcohol or isopropyl alcohol. When alcohol is used as a diluent, the storage stability of the conductive polymer composition can be improved.

1 is a cross-sectional view showing an antistatic polymer film formed using a conductive polymer composition according to an embodiment of the present invention.

Referring to FIG. 1, an antistatic film 13 is formed by coating a conductive polymer composition on a base film 10. The base film 10 may be a polyester film, specifically, a polyethylene terephthalate (PET) film. The base film 10 may be a uniaxially oriented film or a biaxially oriented film.

The base film 10 may be corona discharged to impart a polar group on the surface of the base film 10.

An antistatic film 13 may be formed by applying the conductive polymer composition as described above on the base film 10. When a polar group is provided on the surface of the base film 10, the conductive polymer composition may be uniformly applied on the base film 10, thereby improving the surface flatness of the antistatic film 13 Can be.

The antistatic film 13 may be formed using a gravure roll coating (gravure roll coating techinique), air knife coating (in air knife coating techinique), or bar coating (bar coating techinique).

Thereafter, the antistatic film 13 may be dried. For this purpose, a direct heat drying method or a hot air drying method may be used, but preferably a hot air drying method having a short drying time may be used. Specifically, the antistatic film 13 may be hot air dried at a temperature of 60 ℃ to 180 ℃, preferably 80 ℃ to 160 ℃. This drying process takes about 20 seconds to 1 minute in consideration of the throughput.

The antistatic film 13 may have a thickness of about 0.2 μm to about 2 μm. If the antistatic film 13 is less than 0.2㎛ poor solvent resistance and hardness, if it exceeds 2㎛ the drying time may be a problem in productivity more than 2 minutes.

Hereinafter, preferred examples are provided to aid the understanding of the present invention. However, the following experimental examples are only for helping understanding of the present invention, and the present invention is not limited to the following experimental examples.

Experimental Examples; examples>

Evaluation of Base Polymer and Conductive Polymer Compatibility

<Conductive Polymer Composition Preparation Example 1>

100 g of PEDOT: PSS aqueous dispersion (1.2% solids), a conductive polymer aqueous solution, was added to 400 g of 1: 1 dilution solution of distilled water and isopropyl alcohol and stirred for 10 minutes at a speed of 500 rpm. To this, 0.3 g of DMEA was added as a neutralizing agent, followed by stirring for 10 minutes at a speed of 500 rpm. Thereafter, 20 g of DMSO (dimethyl sulfonate) was added thereto, followed by stirring for 10 minutes at a speed of 500 rpm. Thereafter, 100 g (solid content of 35 wt%) of water-dispersible polyurethane resin of aliphatic poly (carbonate-diol) type was further added as a base resin, and the mixture was stirred at a speed of 500 rpm for 10 minutes.

<Conductive Polymer Composition Preparation Example 2>

A coating film was formed under the same conditions as in Preparation Example 1, except that 100 g (solid content of 34 wt%) of the water-dispersible polyurethane resin of the aliphatic polyester type was used as the base resin.

<Conductive Polymer Composition Comparative Example 1>

A coating film was formed under the same conditions as Preparation Example 1, except that 100 g (solid content of 42 wt%) of an acrylic copolymer emulsion was used as the base resin.

<Conductive Polymer Composition Comparative Example 2>

A coating film was formed under the same conditions as in Preparation Example 1, except that 100 g (solid content of 40 wt%) of an aqueous dispersion-type acrylic-urethane copolymer dispersion was used as the base resin.

The conditions of the conductive polymer compositions obtained through Preparation Examples 1 and 2, and Comparative Examples 1 and 2 were observed and summarized in Table 1 below.

TABLE 1

Preparation Example 1 Production Example 2 Comparative Example 1 Comparative Example 2 Base resin Water Dispersible Polyurethane Resin Water Dispersible Polyurethane Resin Acrylic Copolymer Emulsion Water Dispersible Acrylic-Urethane Copolymer type Aliphatic poly (carbonate-diol) Aliphatic polyester - - Particle charge state Negative ion Negative ion Negative ion Negative ion Particle size - - - Colloid Solid content (%) 35 34 42 40 PH (25) 8.0 8.0 8.0 8.0 Viscosity (25, mPa.s) 100 300 40 100 MFFT () - - 75 - The tensile strength 4500 6400 - 3700 kidney(%) 160 270 - 80 Acid value (mg, @ KOH, 1g) - - - 14 Status of output Good Good Particle generation Particle generation Minimum Film Forming Temperature (MFFT) = Minimum Temperature

Referring to Table 1, the conductive polymer composition using the acrylic copolymer emulsion according to Comparative Example 1 and the conductive polymer composition using the water-dispersible acrylic-urethane copolymer according to Comparative Example 2 had a poor solution state such as seed generation. . On the other hand, the conductive polymer composition using the water-dispersible polyurethane resin according to Preparation Examples 1 and 2 was very good. Therefore, it can be seen that the compatibility between the water-dispersible polyurethane resin and the conductive polymer is very excellent.

Antistatic Film Characteristics Evaluation

<Antistatic coating coating example 1>

 The conductive polymer composition obtained in Preparation Example 1 was coated on the PET film (Dore Saehan, 38um), which is a base film, by using the Mayer bar coating method to form a coating film of about 10um. The coating film was hot-air dried at 80 ° C. for 60 seconds to form an antistatic film.

<Antistatic film coating example 2>

An antistatic film was formed in the same manner as in Coating Example 1, except that the conductive polymer composition obtained in Preparation Example 2 was used.

<Antistatic coating coating example 3>

An antistatic film was formed in the same manner as in Coating Example 1, except that A-PET (Woongjin Chemical, 0.6um) was used as the base film.

<Antistatic film coating example 4>

An antistatic film was formed using the same method as Coating Example 1 except that A-PET (Woongjin Chemical, 0.6um) was used as the base film, and the conductive polymer composition obtained through Composition Preparation Example 2 was used.

Adhesion Evaluation Example

After forming 100 checkered cells by cross-cutting at 1 mm intervals on the antistatic films formed through the coating examples 1 and 2, the number of cells deviated from the substrate using an adhesive tape was investigated. It is shown in Table 2 below.

TABLE 2

Coating Example 1 Coating Example 2 Coating Example 3 Coating Example 4 Base film PET PET A-PET A-PET Conductive polymer
In the composition
Base resin Water dispersible polyurethane resin of aliphatic poly (carbonate-diol) type Aliphatic polyester type water dispersible polyurethane resin Water dispersible polyurethane resin of aliphatic poly (carbonate-diol) type Aliphatic polyester type water dispersible polyurethane resin Adhesion 100/100 100/100 100/100 100/100

Referring to Table 2, the antistatic film formed according to the coating examples 1 to 4 did not leave even one cell in the adhesion evaluation. From these results, it can be seen that the coating film using the water dispersible polyurethane resin can be adhered well on the base film.

<Evaluation of solvent resistance>

Each of the antistatic films formed through the coating examples 1 and 2 was rubbed in a gauze solvent and double rubbed at a load of 300 g, but the number of double rubbings until the appearance was changed is shown in Table 3 below. Ethanol, isopropyl alcohol, and ethyl acetate were used as the solvent.

TABLE 3

Coating Example 1 Coating Example 2 Base film PET PET Conductive polymer
In the composition
Base resin Water dispersible polyurethane resin of aliphatic poly (carbonate-diol) type Aliphatic polyester type water dispersible polyurethane resin ethanol 5 times 3rd time Isopropyl Alcohol 5 times 3rd time Ethyl acetate 3rd time 1 time

Referring to Table 3 above, in the case of solvent resistance, the antistatic film (coating example 1) coated with a conductive polymer composition containing a water-dispersible polyurethane resin of aliphatic poly (carbonate-diol) type as a base resin is an aliphatic poly It can be seen that better results are obtained compared to the case of using an ester type water dispersible polyurethane resin (coating example 2).

<Pencil hardness evaluation example>

Pencil hardness of each of the antistatic films formed through the coating examples 1 and 2 was measured and shown in Table 4 below.

TABLE 4

Coating Example 1 Coating Example 2 Base film PET PET Conductive polymer
In the composition
Base resin Water dispersible polyurethane resin of aliphatic poly (carbonate-diol) type Aliphatic polyester type water dispersible polyurethane resin Pencil hardness 2B 3B

Referring to Table 4, both the case of using the water-dispersible polyurethane resin of the aliphatic poly (carbonate-diol) type (coating example 1) and the case of using the water-dispersible polyurethane resin of the aliphatic polyester type (coating example 2) Although good pencil hardness was shown, coating example 1 showed better pencil hardness.

Evaluation of Electrical Resistance of Antistatic Film Using Alcohol Dilute Conductive Polymer Composition

Distilled water and alcohols (methanol, ethanol, or isopropyl alcohol) were prepared in a 1: 1 dilution, and then diluted twice, four times, and six times, respectively. Toray Saehan, 38um) was coated using a Meyer Bar coating method to form a film of about 10um. Thereafter, hot air drying was performed at 80 ° C. for 60 seconds to form antistatic films. The surface electrical resistance of the antistatic films was measured and shown in Table 5 below.

TABLE 5

diluent 2-fold dilution 4-fold dilution 6-fold dilution Methanol 10E5 to 10E6 Ω / sq 10E6 to 10E7 Ω / sq 10E12 Ω / sq or more ethanol 10E5 to 10E6 Ω / sq 10E6 to 10E7 Ω / sq 10E12 Ω / sq or more Isopropyl Alcohol 10E5 to 10E6 Ω / sq 10E6 to 10E7 Ω / sq 10E7 to 10E8 Ω / sq

On the other hand, in the coating example 1 in which the antistatic film was formed without diluting the conductive polymer composition according to Preparation Example 1, the surface electrical resistance was 10E4Ω / sq.

On the other hand, the antistatic film formed by using the diluted conductive polymer composition showed a high surface electrical resistance, but even when diluted 4 times, it showed an appropriate surface electrical resistance (10E4 to 10E10Ω / sq) as the antistatic film. However, when isopropyl alcohol was used as the diluent, even when 6-fold dilution, an appropriate surface electrical resistance as an antistatic film was shown. Therefore, the conductive polymer composition can be diluted with alcohol without reducing the surface electrical resistance, thereby improving the storage stability of the conductive polymer composition.

Evaluation of Characteristics of Antistatic Film Using Conductive Polymer Composition Added with Crosslinking Agent

<Production Example 3 of Conductive Polymer Composition>

100 g (1.2% solids) of PEDOT: PSS aqueous dispersion, which is a conductive polymer aqueous dispersion, was added to 400 g of distilled water and isopropyl alcohol 1: 1 diluent and stirred for 10 minutes at a speed of 500 rpm. To this, 0.3 g of DMEA was added as a neutralizing agent, followed by stirring for 10 minutes at a speed of 500 rpm. Thereafter, 20 g of DMSO (dimethyl sulfonate) was added thereto, followed by stirring for 10 minutes at a speed of 500 rpm. Thereafter, 100 g of a water-dispersible polyurethane resin (solid content 35 wt%) of an aliphatic poly (carbonate-diol) type was further added as a base resin, followed by stirring for 10 minutes at a speed of 500 rpm. To this, a pentaerythritol-tris- (β- (N-aziridinylpropionate) (CX-100, Avecia) 0.2g (solid content 100 wt%) was added as a crosslinking agent at a speed of 500 rpm for 10 minutes. Stirred to form a conductive polymer composition.

<Production Example 4 of Conductive Polymer Composition>

The same method as Preparation Example 3, except that 2 g (solid content of 100 wt%) of pentaerythritol-tris- (β- (N-aziridinylpropionate) (CX-100, Avecia) was added as a crosslinking agent. Was used to form the conductive polymer composition.

<Production Example 5 of Conductive Polymer Composition>

A conductive polymer composition was formed in the same manner as in Preparation Example 3, except that 9 g (solid content of 80 wt%) of methoxymethyl melamine (L073, BASF, Germany) was added as a crosslinking agent.

<Preparation Example 6 of Conductive Polymer Composition>

A conductive polymer composition was formed in the same manner as in Preparation Example 3, except that 21 g (solid content of 80 wt%) of methoxymethyl melamine (L073, BASF, Germany) was added as a crosslinking agent.

<Example 7 of Conductive Polymer Composition>

The same method as Preparation Example 3, except that 21 g (solid content of 80 wt%) of methoxymethyl melamine (L073, BASF, Germany) was added as a crosslinking agent, and 0.4 g of paratoluenesulfonic acid blocked as an acid catalyst was further added. Was used to form the conductive polymer composition.

<Antistatic film coating example 5>

The conductive polymer composition obtained in Preparation Example 3 was coated on a PET film (38 m) of Toray Saehan, which is a base film, using a Mayer bar coating method to form a film of about 10 um. Thereafter, hot air drying was performed at 80 ° C. for 60 seconds to form an antistatic film.

<Antistatic film coating example 6>

The conductive polymer composition obtained in Preparation Example 4 was coated on a PET film (38 um, Toray Saehan, 38um), which is a base film, using a Mayer bar coating method to form a film of about 10 um. Thereafter, hot air drying was performed at 80 ° C. for 60 seconds to form an antistatic film.

<Antistatic film coating example 7>

The conductive polymer composition obtained in Preparation Example 5 was coated on a PET film (Toray Saehan, 38um), which is a base film, using a Mayer bar coating method to form a film of about 10um. Thereafter, hot air was dried at 160 ° C. for 120 seconds to form an antistatic film.

<Antistatic film coating example 8>

The conductive polymer composition obtained in Preparation Example 6 was coated on a PET film (38 um, Toray Saehan, 38um), which is a base film, using a Mayer bar coating method to form a film of about 10 um. Thereafter, hot air was dried at 160 ° C. for 120 seconds to form an antistatic film.

 <Antistatic film coating example 9>

The conductive polymer composition obtained in Preparation Example 7 was coated on a PET film (38 m) of Toray Saehan, which is a base film, using a Mayer bar coating method to form a film of about 10 um. Thereafter, hot air drying was performed at 140 ° C. for 40 seconds to form an antistatic film.

Each of the antistatic films formed through the coating examples 5 to 9 was rubbed with a gauze solvent and double rubbed at a load of 300 g, but the number of double rubbings until the appearance was changed is shown in Table 6 below. Ethanol, isopropyl alcohol, and ethyl acetate were used as the solvent.

In addition, the pencil hardness of each of the antistatic films formed through the coating examples 5 to 9 was shown in Table 6 below.

TABLE 6

Coating Example 1 Coating Example 5 Coating Example 6 Coating Example 7 Coating Example 8 Coating Example 9 Crosslinking agent - Pentaerythritol-tris- (β- (N-aziridinylpropionate) Methoxymethyl melamine 0.2 g 2 g 9g 21 g 21 g
0.4g acid catalyst Solvent resistance ethanol 5 times 6-7 times 6-7 times 9 to 10 times 14 to 15 times 14 to 15 times Isopropyl Alcohol 5 times 6-7 times 6-7 times 9 to 10 times 14 to 15 times 14 to 15 times Ethyl acetate 3rd time 4 times 4 times 5 to 6 times 8 to 9 times 8 to 9 times Pencil hardness 2B 2B 2B B H H

Referring to Table 6, the coating examples 5 and 6 improved the solvent resistance of about 30% to 50% compared to the coating example 1 not using a crosslinking agent, the pencil hardness value was not different. In addition, compared to Coating Example 1, Coating Examples 7 and 8 have improved solvent resistance by about 100 to 200%, and pencil hardness values are also greatly improved. From these results, it can be seen that when the antistatic film is coated using the conductive polymer composition containing the crosslinking agent, solvent resistance and hardness can be improved. In addition, it can be seen that the coating examples 7 and 8 using the melamine-based crosslinking agent methoxymethyl melamine as a crosslinking agent further improve the solvent resistance and hardness.

In addition, in the case of the coating example 9 in which the antistatic film was formed using the conductive polymer composition which further added the blocked sulfonic acid as the acid catalyst, the drying temperature and time were 160 ° C and 120, compared with the coating example 8 without the acid catalyst. In spite of being shortened from 140 seconds to 40 seconds, it can be seen that they exhibit similar solvent resistance and hardness as in Coating Example 8. From this, it can be seen that it is desirable to add an acid catalyst in the conductive polymer composition.

In the above, the present invention has been described in detail with reference to preferred embodiments, but the present invention is not limited to the above embodiments, and various modifications and changes by those skilled in the art within the spirit and scope of the present invention. This is possible.

1 is a cross-sectional view showing an antistatic polymer film formed using a conductive polymer composition according to an embodiment of the present invention.

Claims (11)

100 parts by weight of the water-dispersed polyurethane resin solids; 0.05 to 0.5 parts by weight of the conductive polymer based on the solid content; 10 to 60 parts by weight of methoxymethylmelamine; 0.2 to 5.0 parts by weight of an organic acid based on 100 parts by weight of the methoxymethylmelamine; And A conductive polymer composition containing a diluent and a solid content of 0.1 to 10 wt%. The method of claim 1, The water dispersion type polyurethane resin is an anionic type conductive polymer composition. The method of claim 2, The water dispersion type polyurethane resin is an aliphatic poly (carbonate-diol) type, or an aliphatic polyester type conductive polymer composition. The method of claim 1, The conductive polymer is polyethylene dioxythiopene (PEDOT): polystyrene sulfonate (PSS) conductive polymer composition in the form of an aqueous dispersion. The method of claim 4, wherein A conductive polymer composition further comprising a single molecule alkylsulfonate. The method of claim 1, The organic acid is p-toluene sulfonic acid conductive polymer composition. delete delete delete delete Base film; And An antistatic polymer film comprising an antistatic film formed on the base film using the conductive polymer composition of any one of claims 1 to 6.

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