CN102898817A - Dispersion, method for producing the same, and antistatic hard coating composition containing same, antistatic film, polarizing plate, and display device - Google Patents

Dispersion, method for producing the same, and antistatic hard coating composition containing same, antistatic film, polarizing plate, and display device Download PDF

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CN102898817A
CN102898817A CN2012101574292A CN201210157429A CN102898817A CN 102898817 A CN102898817 A CN 102898817A CN 2012101574292 A CN2012101574292 A CN 2012101574292A CN 201210157429 A CN201210157429 A CN 201210157429A CN 102898817 A CN102898817 A CN 102898817A
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dispersion
electroconductive polymer
drainage pattern
hard coating
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安锺南
林巨山
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Dongwoo Fine Chem Co Ltd
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Abstract

The invention relates to a dispersion, a method for producing the same, and an antistatic hard coating composition containing the same, an antistatic film, a polarizing plate, and a display device; and relates to an antistatic hard coating composition, an optical laminate formed by the composition, and the polarizing plate and the display device containing the optical laminate. Concretely, the optical laminate comprises a method of dispensing conductive polymer in (meth) acrylate oligomer having a predetermined structure; and the prepared dispersion, the antistatic hard coating, and a low refractive index layer forming on an upper surface of the hard coating and having a refractive index lower than that of the hard coating, wherein the antistatic hard coating is formed by the (meth) acrylate monomer, a photoinitiator and a solvent. The optical laminate provided by the invention is not only excellent in anti-static properties and transparency, but also extremely excellent in anti-reflection effect.

Description

Dispersion and preparation method, contain anti-electrostatic hard coating composition, antistatic film, Polarizer and the display unit of this dispersion
Technical field
The present invention relates to a kind of drainage pattern electroconductive polymer dispersion and preparation method thereof, contain anti-electrostatic hard coating composition, antistatic film, Polarizer and the display unit of this dispersion.
Background technology
Generally speaking; at CRT(Cathod Ray Tube; cathode tube), LCD(Liquid Crystal Display; liquid-crystal display), PDP(Plasma Display Panel; plasma display panel) etc. in the display unit; as surface protecting material, used the film that is formed with the excellent hard coat of scratch resistance (anti-scratch) at transparent substrate.But, because the surface resistivity of existing film is 10 13More than Ω/sq, the dust around therefore existing etc. easily is attached to lip-deep shortcoming.
Thus, used the antistatic film of hard coat having been given static electricity resistance.In the method that is used for giving the hard coat static electricity resistance, known have multiple technologies.As in order to give static electricity resistance and general employed method to hard coat, knownly make method that hard coat contains conductive metal oxide, make hard coat contain the static electricity resistance polymer compounds method, make hard coat contain method of electroconductive polymer etc.
As making hard coat contain the method for electroconductive polymer, electroconductive polymer can be added in the hard coat constituent and realize.But general known electroconductive polymer is drainage pattern, and there is following shortcoming in it, that is, disperse and can't fully carry out in the hard coat constituent that uses the organic solvent.Thus, contain in employing in the situation of anti-electrostatic hard coat of drainage pattern electroconductive polymer, there are the following problems, that is, thereby the dispersion stabilization of electroconductive polymer is lowered and is difficult to bring into play sufficient antistatic performance in composition.
Summary of the invention
Invent problem to be solved
The present invention finishes in order to solve above-mentioned this existing problem points, its purpose is, provide dispersion of a kind of drainage pattern electroconductive polymer and preparation method thereof, in order to the drainage pattern electroconductive polymer can be effectively applied in the hard coat constituent of organic type.
In addition, other purposes of the present invention are, a kind of anti-electrostatic hard coating composition is provided, and its dispersion by containing above-mentioned drainage pattern electroconductive polymer is with as the anti-electrostatic drug, thereby guarantee excellent dispersion stabilization, and then can realize excellent antistatic performance.
In addition, other purposes of the present invention are, the antistatic film of a kind of transmissivity excellence and antistatic characteristic excellence is provided.
And other purposes of the present invention are, a kind of possessed Polarizer above-mentioned antistatic film, excellent quality and display unit are provided.
Be used for solving the method for problem
In order to realize above-mentioned purpose, the invention provides a kind of drainage pattern electroconductive polymer dispersion, it is characterized in that, described drainage pattern electroconductive polymer dispersion is, at the material that makes its dispersion by adding the drainage pattern electroconductive polymer in as shown in the formula (methyl) origoester acrylate of 1 expression.
[Chemical formula 1]
Figure BDA00001658022600021
(in the formula, X is hydrogen atom or CH 3R comprises or does not comprise aliphatics or the aromatic hydrocarbyl of heteroatomic carbonatoms 1～20 for expression, Y represents to comprise functional group's several 1～6 (methyl) aliphatics or aromatic hydrocarbyl acrylate-based, that comprise or do not comprise heteroatomic carbonatoms 3～80, and n is 5～100 integer.）
Described drainage pattern electroconductive polymer can comprise, and is selected from least a among Polythiophene, polypyrrole, polyaniline, polyacetylene, poly(p-phenylene) (poly-p-phenylene), poly(p-phenylene sulfide) (poly-p-phenylene sulfide), the p-phenylene vinylene (poly-p-phenylene vinylene).
Be preferably, described drainage pattern electroconductive polymer is the poly-ethylenedioxy thiophene of mixed polystyrolsulfon acid (PSS).
Be preferably, the moisture content of described dispersion is at weight percent below 0.5%.
In order to realize other purpose of the present invention, the invention provides a kind of preparation method of dispersion, it is characterized in that, be included in by adding after the drainage pattern electroconductive polymer dispersion steps of disperseing in (methyl) origoester acrylate as shown in the formula 1 expression.
[Chemical formula 2]
Figure BDA00001658022600031
(in the formula, X is-CH 3, hydrogen atom, R comprises or does not comprise aliphatics or the aromatic hydrocarbyl of heteroatomic carbonatoms 1～20 for expression, Y represents to comprise functional group's several 1～6 (methyl) aliphatics or aromatic hydrocarbyl acrylate-based, that comprise or do not comprise heteroatomic carbonatoms 2～80, and n is 5～100 integer.）
Be preferably, described electroconductive polymer is with respect to (methyl) origoester acrylate 100 weight parts by 1 expression of described formula, and adds after 1～20 weight part, makes its dispersion.
In addition, can further include, in the dispersion that is obtained by described dispersion steps, drop into the step of organic solvent and the step that drops into absorption agent.
Be preferably, described organic solvent is the mode in 20～90% the scope and adding so that solid component content in the dispersion becomes to be weight percentage.
Described absorption agent can be for adding anhydrous Na 2SO 4Or anhydrous MgSO 4Material.
In order to realize other purposes of the present invention, the invention provides a kind of anti-electrostatic hard coating composition, it is characterized in that, contain described dispersion (A) as antistatic agent.
Described anti-electrostatic hard coating composition can contain (methyl) acrylate monomer (B), light trigger (C) and solvent (D).
Be preferably, with respect to overall 100 weight parts of described anti-electrostatic hard coating composition, and contain the described dispersion of 5～80 weight parts.
Be preferably, described dispersion is added in the water system electroconductive polymer in the dispersion contains 0.001～10 weight part with respect to overall 100 weight parts of anti-electrostatic hard coating composition mode.
In order to realize other purposes of the present invention, the invention provides a kind of antistatic film, it is characterized in that, comprise: transparent substrate; Hard coat, it is by being coated with described anti-electrostatic hard coating composition involved in the present invention and said composition is solidified to form at described transparent substrate.
Be preferably, the surface resistivity of described antistatic film is 5 * 10 11Below Ω/sq.
In addition, antistatic film can also further comprise, and is formed on the upper surface of described hard coat and specific refractory power is lower than the low-index layer of described hard coat.
In order to realize other purposes of the present invention, the invention provides a kind of Polarizer, it is characterized in that possessing described antistatic film.
In order to realize other purposes of the present invention, the invention provides a kind of display unit, it is characterized in that possessing described antistatic film.
The effect of invention
The dispersion that the preparation method of the dispersion by drainage pattern electroconductive polymer involved in the present invention prepares, when being applied to the hard coating composition of organic type, guarantee excellent dispersion stabilization, thereby can obtain to play the anti-electrostatic hard coating composition of excellent antistatic performance.Above-mentioned anti-electrostatic hard coating composition not only antistatic performance is excellent, even and under the harsh environment such as hot and humid persistence and the transparency of antistatic performance performance also very excellent.Therefore, anti-electrostatic hard coating composition of the present invention can be effectively applied in antistatic film, Polarizer and the display unit.
Embodiment
Below, the present invention will be described in more detail.
Drainage pattern electroconductive polymer dispersion
Above-mentioned drainage pattern electroconductive polymer dispersion is, at the material that makes its dispersion by adding the drainage pattern electroconductive polymer in as shown in the formula (methyl) origoester acrylate of 1 expression.
[chemical formula 3]
Figure BDA00001658022600041
(in the formula, X is hydrogen atom or CH 3R comprises or does not comprise aliphatics or the aromatic hydrocarbyl of heteroatomic carbonatoms 1～20 for expression, Y represents to comprise functional group's several 1～6 (methyl) aliphatics or aromatic hydrocarbyl acrylate-based, that comprise or do not comprise heteroatomic carbonatoms 3～80, and n is 5～100 integer.）
If above-mentioned drainage pattern electroconductive polymer dispersion is elaborated by its preparation method, it then is following situation.
Above-mentioned dispersion can easily be prepared by being prepared as follows method, and described preparation method comprises, the drainage pattern electroconductive polymer is added into by after in (methyl) origoester acrylate of following formula 1 expression the dispersion steps of disperseing.
Compound and multifunctional (methyl) acrylate with hydroxyl that can be by making polyvalent alcohol with divalence and difunctionality isocyanate group by the compound of following formula 1 expression react and prepare.
The molecular weight of the polyvalent alcohol of above-mentioned divalence is preferably 300～2500, and more preferably 400～1500.If molecular weight is less than 300, then dispersion efficiency is lowered, and if above 2500, then exist the viscosity of prepared oligopolymer to increase and the problem of operability reduction.
As the polyvalent alcohol of above-mentioned divalence, particularly, can be for being selected from the material of polyoxyethylene glycol, polypropylene glycol and polyethylene-propylene glycol.
Compound with above-mentioned difunctionality isocyanate group so long as have the material of two isocyanate group in molecule, then can be used without restriction.Concrete example as the compound with above-mentioned difunctionality isocyanate group, can list: 4,4 '-the dicyclohexyl vulcabond, hexamethylene diisocyanate trimer, 1, the diisocyanate based butane of 4-, 1, the diisocyanate based hexane of 6-, 1, the diisocyanate based octane of 8-, 1, the diisocyanate based decane of 12-, 1,5-is diisocyanate based-the 2-methylpentane, trimethylammonium-1, the diisocyanate based hexane of 6-, 1, two (isocyanic ester ylmethyl) hexanaphthenes of 3-, anti-form-1,4-tetrahydrobenzene vulcabond, 4,4 '-methylene-bis (cyclohexyl isocyanate), isophorone diisocyanate, Toluene-2,4-diisocyanate, the 4-vulcabond, Toluene-2,4-diisocyanate, the 6-vulcabond, dimethylbenzene-Isosorbide-5-Nitrae-vulcabond, tetramethyl xylene-1, the 3-vulcabond, 1-chloromethyl-2, the 4-vulcabond, 4,4 '-methylene-bis (2,6-dimethylphenyl isocyanate), 4,4 '-bis oxide (phenyl isocyanate) etc.These materials can be distinguished separately use, perhaps two or more the combination are used.
Concrete example as above-mentioned multifunctional (methyl) acrylate with hydroxyl can list; Tetramethylolmethane three (methyl) acrylate and tetramethylolmethane five (methyl) acrylate, and these materials can distinguish separately and to use, and perhaps two or more the combination are used.
Although above-mentioned drainage pattern electroconductive polymer can for, polyaniline, polypyrrole or Polythiophene, polyacetylene, poly(p-phenylene), poly(p-phenylene sulfide), p-phenylene vinylene, the Polythiophene that more preferably has excellent transparency.Especially, in Polythiophene, be preferably poly-ethylene oxide,1,2-epoxyethane thiophene (Polyethyleneoxythiophene), more preferably poly-ethylenedioxy thiophene (Polyethylenedioxythiopene, PEDOT).The molecular weight of above-mentioned poly-ethylenedioxy thiophene is preferably 150,000～200, in 000 the scope, and, above-mentioned poly-ethylenedioxy thiophene more preferably, as doping agent (dopant) and the material of mixed polystyrolsulfon acid (PSS).The poly-ethylenedioxy thiophene of PSS of having mixed in this way has character soluble in water, and has advantages of that thermotolerance, wet fastness and UV stability are very excellent.(below, PEDOT refers to, the poly-ethylenedioxy thiophene of doping PSS).
Although above-mentioned PEDOT adds with the form of the aqueous solution, be preferably at this moment, the PEDOT aqueous solution is adjusted to weight percent 1.2～1.5% to keep with respect to the mode of the only solubleness of water with solid component concentration.This PEDOT aqueous solution because with as water and/or alcohol the larger solvent of specific inductivity easily mix, so can dilute with this solvent.
As the representative example of this PEDOT, can list the Baytron PH(Grade500 of the H.C.Starch company manufacturing of at present commercially available Germany, weight percent 1.3～1.5% aqueous solution).
Be preferably, added with respect to (methyl) origoester acrylate 100 weight parts that represented by above-mentioned formula 1 after above-mentioned electroconductive polymer 1～20 weight part, this electroconductive polymer is disperseed.If electroconductive polymer less than 1 weight part, then is difficult to play sufficient anti-static effect in said reference, and when surpassing 20 weight part, the compatibility problem of the aggegation in the time of then can causing coating etc.
The dispersion of above-mentioned electroconductive polymer can application of known method and implement, adopted in the present invention the method for disperseing by the high-speed stirring more than the 1000Rpm.
According to the present invention, can also comprise: in the dispersion that obtains by above-mentioned dispersion steps, drop into the step of organic solvent and the step that drops into absorption agent.
The input of above-mentioned organic solvent and absorption agent is in order to remove the moisture of water system electroconductive polymer.
Above-mentioned organic solvent is not limited especially, can use ketone, alcohols etc.
Be preferably this moment, and the mode that above-mentioned organic solvent reaches with the solid component content in the dispersion in the scope of weight percent 20～90% is added.That is, be preferably, the solid component content of dispersion involved in the present invention is weight percentage 20～90%.
When above-mentioned organic solvent adds less than the mode of weight percent 20% with the solid component content in the dispersion, the problem that has the thickness when being difficult to regulate coating, and when adding in the mode of the solid component content overweight per-cent 90% in the dispersion, cause sometimes the reduction of the operability that causes owing to viscosity rise.
As above-mentioned moisture absorber, can add anhydrous Na 2SO 4, anhydrous MgSO 4Above-mentioned moisture absorber can drop into approximately 50 weight parts with respect to solids component 100 weight parts in the dispersion.But the present invention is not limited thereto.
When after adding moisture absorber, filtering, can obtain dispersion involved in the present invention.
Be preferably, the moisture content of above-mentioned dispersion is at weight percent below 0.5%.When moisture content overweight per-cent 0.5% in dispersion, may when coating, stain.
In the present invention, solids component refers to, the composition outside desolventizing.
The anti-electrostatic hard coating composition
Above-mentioned anti-electrostatic hard coating composition contains dispersion involved in the present invention (A) as the anti-electrostatic drug.Above-mentioned anti-electrostatic hard coating composition can contain: (methyl) acrylate monomer (B), light trigger (C) and solvent (D).
Dispersion (A)
Above-mentioned dispersion is the material that adds as the anti-electrostatic drug, and because its situation is as indicated above, therefore omits the detailed description to this material.
Be preferably, contain the above-mentioned dispersion of 5～80 weight parts with respect to overall 100 weight parts of above-mentioned anti-electrostatic hard coating composition.When above-mentioned dispersion during less than 5 weight part, be difficult to play sufficient antistatic performance, and when surpassing 80 weight part, screening characteristics can variation sometimes.
Be preferably, above-mentioned dispersion is in anti-electrostatic hard coating composition involved in the present invention, the mode that reaches 0.001～10 weight part with the content of described water system electroconductive polymer with respect to overall 100 weight parts of anti-electrostatic hard coating composition is added, and more preferably adds in the mode that contains 0.1～5 weight part.When the content that makes above-mentioned water system electroconductive polymer uses less than 0.001 weight part in said reference, lead, be surface resistivity 10 owing to surpassing the electricity of the commercial useful minimum of conductive membrane 14Therefore Ω/sq has problems, when using above 10 weight part, although specific conductivity is excellent, but the optical characteristics of briliancy and tone etc. is lowered, when the preparation of conductive membrane and the tack of transparent substrate will reduce, thereby be difficult to obtain uniform coated film.
(methyl) acrylate monomer (B)
Above-mentioned (methyl) acrylate monomer adds for the hardness that improves cured layer.And above-mentioned (methyl) acrylate monomer can use the material that is known in the art without restriction.
As above-mentioned (methyl) acrylate monomer, particularly, can use and be selected from: Dipentaerythritol five (methyl) acrylate, two-TriMethylolPropane(TMP) four (methyl) acrylate, (methyl) acrylate, glycol monomethyl (methyl) acrylate, propylene glycol list (methyl) acrylate, 1,3-butyleneglycol list (methyl) acrylate, 1,4-butyleneglycol list (methyl) acrylate, 1,6-hexylene glycol list (methyl) acrylate, neopentyl glycol single (methyl) acrylate, Diethylene Glycol list (methyl) acrylate, triethylene glycol list (methyl) acrylate, dipropylene glycol list (methyl) acrylate, two (2-hydroxyethyl) isocyanuric acid lists (methyl) acrylate, hydroxyethyl (methyl) acrylate, hydroxypropyl (methyl) acrylate, at least a compound in hydroxyl butyl (methyl) acrylate.
Although the content of above-mentioned (methyl) acrylate monomer does not limit, and is preferably, and contains 0.1～50 weight part with respect to overall 100 weight parts of anti-electrostatic hard coating composition.Above-mentioned if (methyl) acrylate monomer contain quantity not sufficient 0.1 weight part, then the surface cure of overlay can have problems, and if surpass 50 weight parts, then produce sometimes the crackle of overlay.
Light trigger (C)
Above-mentioned light trigger can use the material that is being used in the art without restriction.
As above-mentioned light trigger, particularly, can use and be selected from: 2-methyl isophthalic acid-[4-(methylthio group) phenyl] 2-morpholine propane-1-ketone, diphenylketone benzil dimethyl ketal, 2-hydroxy-2-methyl-1-phenyl-1-ketone, 4-hydroxyl ring phenyl ketone, dimethoxy-2-phenyl methyl phenyl ketone, anthraquinone, fluorenes, triphenylamine, carbazole, 3-methyl acetophenone, 4-chloro-acetophenone, 4, the 4-dimethoxy-acetophenone, 4, the 4-diaminobenzophenone, at least a in 1-hydroxy-cyclohexyl phenyl ketone and the benzophenone.
Be preferably, the content of above-mentioned light trigger is 0.1～10 weight part with respect to overall 100 weight parts of anti-electrostatic hard coating composition.If less than 0.1 weight part, then the curing speed of composition is with slack-off, and if above 10 weight parts, then can have the problem of the surface contamination that is caused by the unreacted initiator in said reference for the content of above-mentioned light trigger.
Solvent (D)
Above-mentioned solvent is so long as the solvent of the anti-electrostatic hard coating composition of the art and known material then can not made limit ground and use.
Can preferably use alcohols (methyl alcohol, ethanol, Virahol, butanols, ethylene glycol monomethyl ether, ethylene glycol ethyl ether etc.), ketone (methyl ethyl ketone, methyl butyl ketone, methyl iso-butyl ketone (MIBK), metacetone, butyrone, pimelinketone etc.), hexane class (hexane, heptane, octane etc.), benzene class (benzene,toluene,xylene etc.) etc. such as, above-mentioned solvent.The above-mentioned solvent that lists can be distinguished separately and to use, and perhaps will make up more than 2 kinds and uses.
The content of above-mentioned solvent can be 5～90 weight parts with respect to overall 100 weight parts of anti-electrostatic hard coating composition.If above-mentioned solvent in said reference less than 5 weight parts, thereby then viscosity can increase comparatively difficulty of thin film cladding, and if surpass 90 weight parts, then in solidification process, can take a long time the problem that therefore exists economy to reduce.
In anti-electrostatic hard coating composition involved in the present invention, except mentioned component, can also and use antioxidant, UV absorption agent, photostabilizer, thermal polymerization inhibitor, leveling agent (leveling agent), tensio-active agent, lubricant etc.
Antistatic film
A kind of antistatic film is provided in the present invention, and described antistatic film comprises: transparent substrate; Hard coat, it is by being coated with above-mentioned anti-electrostatic hard coating composition involved in the present invention and said composition is solidified to form at above-mentioned transparent substrate.
More specifically, above-mentioned antistatic film comprises: transparent substrate; Hard coat, it utilizes above-mentioned anti-electrostatic hard coating composition to form by one side or the two sides at above-mentioned transparent substrate.
Transparent substrate
As above-mentioned transparent substrate, so long as have the plastics film of the transparency, then film can use arbitrarily, for example can use and be selected from: such as norbornylene or encircle the Norbornene derivative more, cycloolefin analog derivative with the monomer unit that comprises cycloolefin, be selected from diacetyl cellulose, triacetyl cellulose, cellulose acetate butyric ester (Acetyl cellulose butyrate), the isobutyl ester Mierocrystalline cellulose, the propionyl Mierocrystalline cellulose, Mierocrystalline cellulose in butyryl Mierocrystalline cellulose or the acetyl-propionyl Mierocrystalline cellulose etc., ethene-vinyl acetate copolymer, polyester, polystyrene, polymeric amide, polyetherimide, polyacrylic ester (Polyacrylic), polyimide, polyethersulfone, polysulfones, polyethylene, polypropylene, polymethylpentene, polyvinyl chloride, polyvinylidene dichloride, polyvinyl alcohol, polyvinyl acetal, polyetherketone, polyether-ether-ketone, polyethersulfone, polymethylmethacrylate, polyethylene terephthalate, polybutylene terephthalate, PEN, polycarbonate, urethane, material in the Resins, epoxy (epoxy) etc., and can use non-stretched film, single shaft or biaxially oriented film.
Wherein, be preferably single shaft or Biaxially oriented polyester film, the transparency and the excellent heat resistance of the transparency and excellent heat resistance and can tackle the maximization of film cycloolefin analog derivative film, from the transparency and do not have the optical anisotropy viewpoint can suitably use triacetylcellulose film.
The thickness of above-mentioned transparent base film is 8～1000 μ m, is preferably 40～100 μ m.
Hard coat
Above-mentioned hard coat is by being coated with anti-electrostatic hard coating composition involved in the present invention and said composition is solidified to form at above-mentioned transparent substrate.
Above-mentioned hard coat can be by extrusion coated, pneumaticly scrape Tu, contrary roller, spraying, thus the suitable mode such as scraper plate, curtain coating, concave surface coating and rotary coating and be coated with the anti-electrostatic hard coating composition and form.
After being coated on above-mentioned anti-electrostatic hard coating composition on the transparent substrate, under 30～120 ℃ temperature, dry 10 seconds～1 hour, more preferably dry 30 seconds～30 minutes kinds, thus make the volatile matter evaporimeter so that hard coat is dry.Afterwards, irradiation UV light and being cured.The irradiation dose of UV light is preferably approximately 0.01～10J/cm 2, 0.1～2J/cm more preferably 2
At this moment, be preferably, be coated with above-mentioned anti-electrostatic hard coating composition and the thickness of the above-mentioned hard coat that forms is 0.5～10 μ m.When the thickness of above-mentioned hard coat is included in the above-mentioned scope, can obtain excellent anti-reflection effect.
When antistatic film involved in the present invention plays a role as antireflective film, the specific refractory power of above-mentioned hard coat is from being used for obtaining the optical design aspect of antireflective film, in the specific refractory power under 25 ℃ preferably in 1.48～2.00 scopes, more preferably 1.50～1.90, especially be preferably 1.50～1.80.Although when antistatic film involved in the present invention plays a role as antireflective film, on above-mentioned hard coat, will form low-index layer, but when the specific refractory power of hard coat during less than above-mentioned scope, antireflection will reduce, and when greater than above-mentioned scope, the shortcoming that exists catoptrical color to thicken.
Low-index layer
Above-mentioned low-index layer is that at the layer that above-mentioned anti-electrostatic hard coat forms, it has the specific refractory power that is lower than hard coat in order to bring into play antireflection property.
Above-mentioned low-index layer has 1.20～1.49 specific refractory power under 25 ℃, preferably have 1.30～1.44 specific refractory power.When the specific refractory power of above-mentioned low-index layer is in above-mentioned scope, can obtain excellent anti-reflection effect.
Above-mentioned low-index layer can with the specific refractory power that satisfies above-mentioned scope, general employed low-index layer forms and forms with composition in the art.More preferably, above-mentioned low-index layer by will comprise fluorinated copolymer, have low-index layer that particulate, initiator and the solvent in space form form coat on the above-mentioned hard coat with composition after, it is solidified to form.
Above-mentioned fluorinated copolymer is so long as then can be used without restriction by the material of normal operation in the art, be preferably, fluorine-containing ratio is 60～70% fluorinated copolymer, more preferably, fluorine-containing ratio is 62～70% fluorinated copolymer, especially is preferably fluorine-containing ratio and is 64～68% fluorinated copolymer.Fluoropolymer with the fluorine-containing ratio in the above-mentioned scope has good solubility with respect to solvent, and has excellent close property with respect to multiple base material.Especially, fluoropolymer with the fluorine-containing ratio in the above-mentioned scope, owing to forming and having the higher transparency and lower specific refractory power and the film with physical strength of enough excellences, therefore can fully improve the mechanical characteristics of the scratch resistance etc. on the surface that is formed with film, thus very suitable.
Although the content of above-mentioned fluorinated copolymer is not particularly limited, be preferably, form with respect to above-mentioned low-index layer and contain 10～90 weight parts with overall 100 weight parts of composition.Owing to when the content of above-mentioned fluorinated copolymer is playing excellent preventing reflection characteristic in said reference in 10～90 weight parts the time, so being preferred.
Above-mentioned particulate with space can reduce specific refractory power when keeping the intensity of low-index layer.
Above-mentioned particulate with space refers to, form gas be filled in particulate inside structure and/or contain the cell structure of gas, and compare with the specific refractory power of particulate itself, the occupation rate of the gas in specific refractory power and the particulate is inversely proportional to and the particulate that reduces.In addition, also comprise in the present invention following particulate, that is, according to the form of particulate, structure, state of aggregation, in the dispersion state of the particulate of coated film inside, and can form in inner and/or surperficial at least a portion the particulate of nano-porous structure.
Because above-mentioned particulate with space is easy to manufacture, and the hardness of himself is higher, therefore improved the intensity of low-index layer, and can be with the adjustable refractive index of low-index layer to about 1.20～1.49 scope.
As above-mentioned particulate with space, particularly, can list: make the porous section on the post of filling usefulness and surface adsorb the controlled-release material of various chemical substances, be used for catalyzer on fixing small porous particle or to embed lagging material or dielectric materials as dispersion and the aggregate of the hollow minute particle of purpose.As a specific example, can use as commercially available product and be selected from: material having of waving that aggregate, the daily output chemical industrial company of trade name ELECOM hollow silica particle that catalyst chemical company makes, trade name Nipsil that Japanese Silica industrial makes or the porous silica particulate among the Nipgel the make day structure that silicon dioxide microparticle is connected to chain, among the コ Le ロ イ ダ Le シ リ カ UP シ リ ー ズ (trade(brand)name).
Above-mentioned median size with the particulate in space is 5nm～300nm, is preferably 8nm～100nm, more preferably 40nm～80nm.If the median size of above-mentioned particulate with space then can be given the transparency of low-index layer excellence in above-mentioned scope.
Be preferably, form the above-mentioned particulate with space that contains 0.5～10 weight part with overall 100 weight parts of composition with respect to above-mentioned low-index layer.If above-mentioned particulate with space in above-mentioned scope, can realize that then low-index layer forms the adjustable refractive index with composition, and anti-reflection effect is excellent in said reference.
Above-mentioned solvent and initiator can use Photoepolymerizationinitiater initiater and solvent cited in above-mentioned anti-electrostatic hard coating composition.In addition, use in the content range of can be in the above-mentioned anti-electrostatic hard coating composition mentioned Photoepolymerizationinitiater initiater of above-mentioned solvent and initiator and solvent.
In addition, above-mentioned low-index layer forms and can also comprise as required with composition, in the art by the antioxidant of normal operation, UV absorption agent, photostabilizer, thermal polymerization inhibitor, leveling agent, tensio-active agent, lubricant, stain control agent etc.
When the low-index layer formation that will have above-mentioned composition is coated on the anti-electrostatic hard coat with composition, can obtain low-index layer.Above-mentioned low-index layer forms with the coating of composition can pass through extrusion coated, pneumatic blade coating, contrary roller, spraying, the mode that scraper, curtain coating, concave surface coating, the coating of nick face and rotary coating etc. suit and implement working procedure of coating (Coating Process).
Above-mentioned low-index layer is formed be coated on the transparent substrate with composition after, under 30～150 ℃ temperature dry 10 seconds～1 hour, more preferably dry 30 seconds～30 minutes kinds, thereby make the volatile matter evaporation.Afterwards, shine UV light and make its curing.The irradiation dose of UV light is preferably approximately 0.01～10J/cm 2, 0.1～2J/cm more preferably 2
At this moment, the thickness of above-mentioned low-index layer is preferably 80～120nm, more preferably 90～105nm.When the thickness of above-mentioned low-index layer is in above-mentioned scope, can obtain excellent anti-reflection effect.
And, being preferably, the specific refractory power of above-mentioned low flexion hard coat is 1.2～1.49 under 25 ℃.When the specific refractory power of above-mentioned low-refraction hard coat is in above-mentioned scope, can obtain excellent anti-reflection effect.
Has the surface resistivity of antistatic film involved in the present invention of above-mentioned structure 5 * 10 10Below Ω/sq, and has excellent antistatic performance.Moreover, when above-mentioned antistatic film also comprised low-index layer, reflectivity was below 1.5%, thereby realized very excellent anti-reflection effect.Thus, in the Polarizer and various display unit that the antistatic film involved in the present invention of making in the above described manner needing can be used for the article of anti-electrostatic and antireflection, mention below especially.
Polarizer
Polarizer involved in the present invention be by at least on a surface stacked above-mentioned antistatic film involved in the present invention form.
There is no particular limitation for above-mentioned Polarizer, can use various kinds.As above-mentioned Polarizer, for example can list: the polyvinyl alcohol film; The dichroic substance such as iodine or dichroic dye are adsorbed on the hydrophilic macromolecule films such as the partly-hydrolysed film of ethylene-vinyl acetate copolymer class, and carry out the film of uniaxial extension; Perhaps polyenoid class oriented film such as the processed thing of polyvinyl alcohol or polyvinyl chloride De Tuo salt acid treatment thing etc.In these films, be preferably the polyvinyl alcohol film and contain the Polarizer of the dichroic substance such as iodine.There is no particular limitation for the thickness of these Polarizers, is generally approximately 5～80 μ m.
The transmitance of Polarizer is in the light of wavelength 550nm, preferably in 30～50% scope, more preferably in 35～50% scope.Degree of polarization is in the light of wavelength 550nm, preferably in 90～100% scope, more preferably in 95～100% scope, most preferably in 99～100% scope.
Display unit
Display unit involved in the present invention comprises above-mentioned antistatic film.For example by the built-in Polarizer that is laminated with antistatic film of the present invention in display unit, thereby can produce the display unit of excellent electrostatic prevention property.
Antistatic film of the present invention for example can be used in, twisted-nematic (Twisted Nematic, TN), super twisted nematic (Super Twisted Nematic, STN), vertical orientated (Vertical Alignment, VA), in the liquid crystal indicator of infiltration type, reflection-type or the semi-transmission type of the interior switching of plate (In-Plane Switching, IPS) or optical compensation curved unit (Opically Compensated Bend Cell, OCB) isotype.
Especially, when antistatic film involved in the present invention, improve film with commercially available briliancy and (have the polarizing separating film that polarisation is selected layer, for example, when the D-BEF that Sumitomo 3M company makes etc.) being used in together in the liquid crystal indicator of infiltration type or semi-transmission type, display unit can obtain higher visibility.
In addition; when antistatic film of the present invention is formed on the transparent substrate of PET, PEN etc.; palm PC), the such image display device of surface protection board, touch-screen, plasm display panel (PDP) and cathode tube display unit (Cathode Ray Tube, CRT) of mobile telephone can be applied to PDA(Personal Digital Assistant:.
The present invention is further specialized by following embodiment, but following embodiment is particular instantiation of the present invention only, and protection scope of the present invention is not limited or limits.
Synthesizing of [synthesis example 1] (methyl) origoester acrylate
In condenser, whipping appts, thermostatic reactor are installed, add isophorone diisocyanate (TCI company system) 17.7g, polyoxyethylene glycol (molecular weight 400, Ha Application ノ Application change into company's system) 3g, dibutyl tin laurate (Aldrich company system) 0.1g, 50 ℃ of lower stirrings 2 hours, afterwards, add pentaerythritol triacrylate (M340, ミ ウ ォ Application Itochu system) 120g and 80 ℃ of lower stirrings 3 hours, afterwards, by the FT-IR(Fourier transform infrared spectroscopy) and be 2260cm with the characteristic peak of isocyanic ester -1The position that disappears is made as the terminal point of reaction, thereby prepares.
Synthesizing of [synthesis example 2] (methyl) origoester acrylate
In condenser, whipping appts, thermostatic reactor are installed, add 4,4 '-dicyclohexyl methane diisocyanate (TCI company system) 23.5g, polyoxyethylene glycol (molecular weight 400, Ha Application ノ Application change into company's system) 3g, dibutyl tin laurate (Aldrich company system) 0.1g, 50 ℃ of lower stirrings 2 hours, afterwards, add pentaerythritol triacrylate (M340, ミ ウ ォ Application Itochu system) 120g and 80 ℃ of lower stirrings 3 hours, afterwards, be 2260cm by FT-IR with the characteristic peak of isocyanic ester -1The position that disappears is made as the terminal point of reaction, thereby prepares.
Synthesizing of [synthesis example 3] (methyl) origoester acrylate
In condenser, whipping appts, thermostatic reactor are installed, add isophorone diisocyanate (TCI company system) 15.8g, polypropylene glycol (molecular weight 1000, Ha Application ノ Application change into company's system) 8g, dibutyl tin laurate (Aldrich company system) 0.1g, 50 ℃ of lower stirrings 2 hours, afterwards, add pentaerythritol triacrylate (M340, ミ ウ ォ Application Itochu system) 115g and 80 ℃ of lower stirrings 3 hours, afterwards, be 2260cm by FT-IR with the characteristic peak of isocyanic ester -1The position that disappears is made as the terminal point of reaction, thereby prepares.
Synthesizing of [synthesis example 4] (methyl) origoester acrylate
In condenser, whipping appts, thermostatic reactor are installed, add isophorone diisocyanate (TCI company system) 16.5g, polyoxyethylene glycol (molecular weight 1500, Ha Application ノ Application change into company's system) 12g, dibutyl tin laurate (Aldrich company system) 0.1g, 50 ℃ of lower stirrings 2 hours, afterwards, add Dipentaerythritol five acrylate (M400, ミ ウ ォ Application Itochu system) 210g and 80 ℃ of lower stirrings 3 hours, afterwards, by FT-IR with the characteristic peak 2260cm of isocyanic ester -1The position that disappears is made as the terminal point of reaction, thereby prepares.
The preparation of [preparation example 1] dispersion
In by the resin 45g of synthesis example 1 preparation, add poly-ethylenedioxy thiophene (the Baytron PH of the PSS that mixed, Grade500,5g(solids component weight) and stirred 3 hours the aqueous solution of weight percent 1.3～1.5%), afterwards, add methyl ethyl ketone 25g, Virahol 25g and stirred 30 minutes.Then, add anhydrous MgSO 410g also stirred 1 hour, afterwards, utilized the strainer elimination solid of polypropylene material, thereby had obtained the dispersion of solids component 50%.
The preparation of [preparation example 2] dispersion
In by the resin 45g of synthesis example 2 preparations, add poly-ethylenedioxy thiophene (the Baytron PH of the PSS that mixed, Grade500,5g(solids component weight) and stirred 3 hours the aqueous solution of weight percent 1.3～1.5%), afterwards, add methyl ethyl ketone 25g, Virahol 25g and stirred 30 minutes.Then, add anhydrous MgSO 410g also stirred 1 hour, afterwards, utilized the strainer elimination solid of polypropylene material, thereby had obtained the dispersion of solids component 50%.
The preparation of [preparation example 3] dispersion
In by the resin 45g of synthesis example 3 preparations, add poly-ethylenedioxy thiophene (the Baytron PH of the PSS that mixed, Grade500,5g(solids component weight) and stirred 3 hours the aqueous solution of weight percent 1.3～1.5%), afterwards, add methyl ethyl ketone 25g, Virahol 25g and stirred 30 minutes.Then, add anhydrous MgSO 410g also stirred 1 hour, afterwards, utilized the strainer elimination solid of polypropylene material, thereby had obtained the dispersion of solids component 50%.
The preparation of [preparation example 4] dispersion
In by the resin 45g of synthesis example 4 preparations, add poly-ethylenedioxy thiophene (the Baytron PH of the PSS that mixed, Grade500,5g(solids component weight) and stirred 3 hours the aqueous solution of weight percent 1.3～1.5%), afterwards, add methyl ethyl ketone 25g, Virahol 25g and stirred 30 minutes.Then, add anhydrous MgSO 410g also stirred 1 hour, afterwards, utilized the strainer elimination solid of polypropylene material, thereby had obtained the dispersion of solids component 50%.
[preparation example 5] low-index layer forms the preparation with composition
Form at the low-index layer of city's mid-sales and namely to contain the UV coating liquid of fluoropolymer with composition (EDISON company system: solid component concentration is 20%, contain approximately weight per-cent 85% of fluoropolymer in the solids component, contain polymerizable monomer, polymerization starter) in 10 weight parts, adding methyl ethyl ketone 5 weight parts and ethyl acetate 3 weight parts also at room temperature stirred 30 minutes, afterwards, the strainer of the polypropylene material in the hole by having 3 μ m sizes filters above-mentioned stirring liquid, uses composition thereby the low-index layer of preparing specific refractory power 1.41 forms.
[embodiment 1] anti-electrostatic hard coat forms the preparation with composition
Will be by dispersion 50 weight parts, the pentaerythritol triacrylate (M340 of preparation example 1 preparation, ミ ウ ォ Application Itochu system) 15 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 30 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 2]
Will be by dispersion 50 weight parts, the pentaerythritol triacrylate (M340 of preparation example 2 preparations, ミ ウ ォ Application Itochu system) 15 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 30 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 3]
Will be by dispersion 50 weight parts, the pentaerythritol triacrylate (M340 of preparation example 3 preparations, ミ ウ ォ Application Itochu system) 15 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 30 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 4]
Will be by dispersion 50 weight parts, the pentaerythritol triacrylate (M340 of preparation example 4 preparations, ミ ウ ォ Application Itochu system) 15 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 30 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 5]
Will be by dispersion 30 weight parts, the pentaerythritol triacrylate (M340 of preparation example 1 preparation, ミ ウ ォ Application Itochu system) 25 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 40 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 6]
Will be by dispersion 70 weight parts, the pentaerythritol triacrylate (M340 of preparation example 1 preparation, ミ ウ ォ Application Itochu system) 5 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 20 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 7]
Will be by dispersion 90 weight parts, the pentaerythritol triacrylate (M340 of preparation example 1 preparation, ミ ウ ォ Application Itochu system) 1 weight part, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 4 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[embodiment 8]
Will be by dispersion 10 weight parts, the pentaerythritol triacrylate (M340 of preparation example 1 preparation, ミ ウ ォ Application Itochu system) 35 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 55 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[comparative example 1]
To (contain 30% at 2-methyl cellosolve as the antimony oxidation tin that contains of anti-electrostatic drug, S-CHEMTECH company system) 50 weight parts, pentaerythritol triacrylate (M340, ミ ウ ォ Application Itochu system) 15 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 30 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[comparative example 2]
Will be as quaternary ammonium salt (the 1-methyl-3-butyl imidazole a tetrafluoro borate of anti-electrostatic drug, C-TRI company system) 5 weight parts, pentaerythritol triacrylate (M340, ミ ウ ォ Application Itochu system) 35 weight parts, light trigger (Irgacure184, BASF AG's system) 4.5 weight parts, methyl ethyl ketone 55 weight parts, additive (BYK320, BYK company system) 0.5 weight part stirred 3 hours, afterwards, utilize the strainer of polypropylene material to filter, thereby prepare composition.
[experimental example]
The one side surface coating of the transparent substrate that consists of at the triacetylcellulose film that by thickness is 80 μ m is by anti-electrostatic hard coating composition and the heat drying of above-described embodiment and comparative example preparation, afterwards, having formed thickness by ultraviolet curing is the hard coat of 5 μ m.
Form with composition and heat drying at the low-index layer of above-mentioned hard coat coating by above-mentioned preparation example 5 preparations, afterwards, having formed thickness by ultraviolet curing is the low-index layer of 0.1 μ m.
By following method, respectively the physical properties of the electrostatic prevention film that obtains is in the above described manner measured, will the results are shown in following table 1.
(1) transmitance and mist degree
Utilize spectrophotometer (HZ-1, Japanese ス ガ company system) and total light transmittance (Total Transmittance) and the mist degree (Haze) of the optical laminate prepared by above-described embodiment are measured.
(2) surface resistivity is measured
Use the MCP-HT450 of Hiresta and the resistance of the hard coat prepared by above-described embodiment is measured.
(3) surface albedo
Spectrophotometric Meter UV2450(Shimadzu company makes) upper mounting adapter (adapter) MPC2200, thereby in 380～780nm De Bo Long zone, specular reflectance to exit angle 5 ゜ under input angle 5 ゜ is measured, thereby calculates the average reflectance of 450～650nm.
[table 1]
Figure BDA00001658022600181
As shown in Table 1 above, can confirm following situation, namely, comprising involved in the present invention containing in the situation of PEDOT as anti-electrostatic hard coating composition dispersion, embodiment 1～8 of water system electroconductive polymer, compare with the anti-electrostatic hard coating composition of the comparative example 1～2 that does not contain described dispersion, antistatic performance is good, and not only transmitance is very high, and the antireflection rate is also very excellent.

Claims (21)

1. a drainage pattern electroconductive polymer dispersion is characterized in that,
Described drainage pattern electroconductive polymer dispersion is, at the material that makes its dispersion by adding the drainage pattern electroconductive polymer in as shown in the formula (methyl) origoester acrylate of 1 expression,
[Chemical formula 1]
Figure FDA00001658022500011
In the formula, X is hydrogen atom or CH 3R comprises or does not comprise aliphatics or the aromatic hydrocarbyl of heteroatomic carbonatoms 1～20 for expression, Y represents to comprise functional group's several 1～6 (methyl) aliphatics or aromatic hydrocarbyl acrylate-based, that comprise or do not comprise heteroatomic carbonatoms 3～80, and n is 5～100 integer.
2. drainage pattern electroconductive polymer dispersion as claimed in claim 1 is characterized in that,
Described drainage pattern electroconductive polymer comprises, and is selected from least a among Polythiophene, polypyrrole, polyaniline, polyacetylene, poly(p-phenylene), poly(p-phenylene sulfide), the p-phenylene vinylene.
3. drainage pattern electroconductive polymer dispersion as claimed in claim 1 is characterized in that,
Described drainage pattern electroconductive polymer is the poly-ethylenedioxy thiophene of mixed polystyrolsulfon acid (PSS).
4. drainage pattern electroconductive polymer dispersion as claimed in claim 1 is characterized in that,
The moisture content of described dispersion is at weight percent below 0.5%.
5. the preparation method of a drainage pattern electroconductive polymer dispersion is characterized in that,
Comprise: in by (methyl) origoester acrylate as shown in the formula 1 expression, add after the drainage pattern electroconductive polymer, the dispersion steps of disperseing,
[Chemical formula 2]
In the formula, X is-CH 3, hydrogen atom, R comprises or does not comprise aliphatics or the aromatic hydrocarbyl of heteroatomic carbonatoms 1～20 for expression, Y represents to comprise functional group's several 1～6 (methyl) aliphatics or aromatic hydrocarbyl acrylate-based, that comprise or do not comprise heteroatomic carbonatoms 2～80, and n is 5～100 integer.
6. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 5 is characterized in that,
Described drainage pattern electroconductive polymer comprises, and is selected from least a among Polythiophene, polypyrrole, polyaniline, polyacetylene, poly(p-phenylene), poly(p-phenylene sulfide), the p-phenylene vinylene.
7. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 5 is characterized in that,
Described drainage pattern electroconductive polymer is the poly-ethylenedioxy thiophene of mixed polystyrolsulfon acid (PSS).
8. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 5 is characterized in that,
After having added described electroconductive polymer 1～20 weight part, this electroconductive polymer is disperseed with respect to (methyl) origoester acrylate 100 weight parts that represented by described formula 1.
9. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 5 is characterized in that,
Also comprise: in the dispersion that is obtained by described dispersion steps, drop into the step of organic solvent and the step that drops into absorption agent.
10. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 9 is characterized in that,
Described organic solvent is the mode in 20～90% the scope and adding so that solid component content in the dispersion becomes to be weight percentage.
11. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 9 is characterized in that,
Described absorption agent is to add anhydrous Na 2SO 4Or anhydrous MgSO 4Material.
12. the preparation method of drainage pattern electroconductive polymer dispersion as claimed in claim 11 is characterized in that,
Make the moisture content of described dispersion become to be weight percentage below 0.5%.
13. an anti-electrostatic hard coating composition is characterized in that,
Contain the described dispersion of any one in the claim 1～4 as antistatic agent, with as dispersion (A).
14. anti-electrostatic hard coating composition as claimed in claim 13 is characterized in that,
Comprise (methyl) acrylate monomer (B), light trigger (C) and solvent (D).
15. anti-electrostatic hard coating composition as claimed in claim 13 is characterized in that,
With respect to overall 100 weight parts of described anti-electrostatic hard coating composition, and contain the described dispersion of 5～80 weight parts.
16. anti-electrostatic hard coating composition as claimed in claim 13 is characterized in that,
Described dispersion is added in the water system electroconductive polymer in the dispersion contains 0.001～10 weight part with respect to overall 100 weight parts of anti-electrostatic hard coating composition mode.
17. an antistatic film is characterized in that,
Comprise: transparent substrate; Hard coat, it is by being coated with the described anti-electrostatic hard coating composition of claim 13 and said composition is solidified to form at described transparent substrate.
18. antistatic film as claimed in claim 17 is characterized in that,
The surface resistivity of described antistatic film is 5 * 10 11Below Ω/sq.
19. antistatic film as claimed in claim 17 is characterized in that,
Also comprise: be formed on the upper surface of described hard coat and specific refractory power is lower than the low-index layer of described hard coat.
20. a Polarizer is characterized in that,
Possesses the described antistatic film of claim 17.
21. a display unit is characterized in that,
Possesses the described antistatic film of claim 17.
CN2012101574292A 2011-05-19 2012-05-18 Dispersion, method for producing the same, and antistatic hard coating composition containing same, antistatic film, polarizing plate, and display device Pending CN102898817A (en)

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