WO2007097564A1 - Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same - Google Patents
Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same Download PDFInfo
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- WO2007097564A1 WO2007097564A1 PCT/KR2007/000891 KR2007000891W WO2007097564A1 WO 2007097564 A1 WO2007097564 A1 WO 2007097564A1 KR 2007000891 W KR2007000891 W KR 2007000891W WO 2007097564 A1 WO2007097564 A1 WO 2007097564A1
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- polythiophene
- conductive polymer
- based conductive
- organic solvent
- melamine resin
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J5/00—Manufacture of articles or shaped materials containing macromolecular substances
- C08J5/20—Manufacture of shaped structures of ion-exchange resins
- C08J5/22—Films, membranes or diaphragms
- C08J5/2206—Films, membranes or diaphragms based on organic and/or inorganic macromolecular compounds
- C08J5/2218—Synthetic macromolecular compounds
- C08J5/2256—Synthetic macromolecular compounds based on macromolecular compounds obtained by reactions other than those involving carbon-to-carbon bonds, e.g. obtained by polycondensation
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L65/00—Compositions of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Compositions of derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/24—Electrically-conducting paints
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2365/00—Characterised by the use of macromolecular compounds obtained by reactions forming a carbon-to-carbon link in the main chain; Derivatives of such polymers
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2375/00—Characterised by the use of polyureas or polyurethanes; Derivatives of such polymers
- C08J2375/04—Polyurethanes
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K5/00—Use of organic ingredients
- C08K5/54—Silicon-containing compounds
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L61/00—Compositions of condensation polymers of aldehydes or ketones; Compositions of derivatives of such polymers
- C08L61/20—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen
- C08L61/26—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds
- C08L61/28—Condensation polymers of aldehydes or ketones with only compounds containing hydrogen attached to nitrogen of aldehydes with heterocyclic compounds with melamine
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L67/00—Compositions of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Compositions of derivatives of such polymers
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L75/00—Compositions of polyureas or polyurethanes; Compositions of derivatives of such polymers
- C08L75/04—Polyurethanes
Definitions
- Polyaniline (PAN), polypyrrole (PPy) and polythiophene (PT) are widely used as a conductive polymer. Extensive researches have been conducted on these polymers because they are easily polymerized and have superior conductivity, thermal stability and oxidation stability.
- these conductive polymers Due to their electrical property, these conductive polymers have been suggested for their use as an electrode of a second battery, materials for preventing electromagnetic waves, flexible electrodes, anti-static materials, anti-corrosion coating materials, etc. However, they have not been yet commercialized due to the difficulty in process, as well as poor thermal stability, weatherability, waterproof property and high cost. However, these conductive polymers have recently drawn much attention due to their potential as a coating material for preventing electromagnetic waves together with anti-dust and anti-static coating materials because of the tightly revised standards regarding prevention of electromagnetic.
- the conductive polymers have recently begun to draw attention for their use as a conductive coating material for the glass surface of Braun tube since polyethylene dioxythiophene (PEDT), i.e., polythiophene-based conductive polymer, was disclosed in U. S. patent Nos. 5,035,926 and 5,391,472.
- PET polyethylene dioxythiophene
- This conductive polymer has a superior transparency to polyaniline-based, polypyrrole-based and polythiophene-based other conductive polymers.
- polymeric acid salt such as polystyrene sulfonate is used as a doping material to increase conductivity
- a coating solution which may be subject to an aqueous dispersion, was prepared.
- This has a superior miscibility with alcohol solvent and a superior processibility and may be applicable to various coating materials for a Braun tube (CRT) or plastic film surface.
- a representative example of this polyethylene dioxythiophene is Baytron P (V4, 500 grade) of Bayer Company.
- the polyethylene dioxythiophene conductive polymer needs to be coated with a low concentration polyethylene dioxythiophene for achieving a transparency of higher than 95%.
- a conductivity of less than 1 k ⁇ /m 2 is difficult to achieve according to a conventional method.
- a non-conductive silica sol prepared from alkoxy silane [RSi(ORi)3], wherein R is a methyl, ethyl, propyl or isopropyl group, and Ri is a methyl or ethyl group) may further decrease the conductivity when it is added to increase the adhesiveness of a membrane, which makes it more difficult to prepare a membrane with high conductivity of less than 1 k ⁇ /m 2 .
- the polymer has been used only as an anti-static coating material requiring a relatively low conductivity.
- Baytron P of Bayer Company is an aqueous dispersion, and is vulnerable to water due to the intramolecular SCV group even after the formation of a polymer membrane.
- Korean patent publication No. 2000-10221 discloses a conductive polymer composition comprising polyethylene dioxythiophene, alcohol-based solvent, amide solvent, a polyester-based resin binder.
- Korean patent publication No. 2005-66209 discloses composition for coating highly diffusive conductive film, which comprises polyethylene dioxythiophene, alcohol-based solvent, amide solvent and silane coupling agents.
- compositions having high transparency, adhesiveness and durability as well as electrical property of less than 1 k ⁇ /m 2 the time-dependent conductive polymer membranes show drastic change in electrical property, especially at a condition of high temperature and high humidity, thus hindering their commercialization.
- the transparency of higher than 95% it has been almost impossible to achieve high waterproof property, adhesiveness and durability as well as surface resistance of lower than 1 k ⁇ /m 2 , the standards required for the prevention of electromagnetic waves (TCO standard), due to the aforementioned drawbacks.
- TCO standard the standards required for the prevention of electromagnetic waves
- a polymer composition which comprises an aqueous solution of a polythiophene-based conductive polymer, an alcohol-based organic solvent, an amide-based organic solvent or an aprotic highly-dipolar solvent, a melamine resin, and a binder selected from the group consisting of a polyester, a polyurethane and an alkoxy silane, may increase both conductivity and transparency as well as other properties such as waterproof property, adhesiveness, durability, membrane Homogeneity and liquid stability without using the conventional stabilizer.
- solvent dissolves the polymer portion of an aqueous solution of a 5 polythiophene-based conductive polymer, thus increasing the connection between polythiophene-based conductive polymers and dispersion property, and that the NH + group in a melamine resin binds with the SCV group in an aqueous solution of a polythiophene-based conductive polymer (Baytron P) by preventing the SCV group from binding with water, thus increasing waterproof property and
- an objective of the present invention is to provide a polythiophene-based conductive polymer composition that exhibits improved conductivity and transparency as well as other highly improved properties such as
- the mixed solution composition was coated onto a transparent substrate, and dried in an oven (125 0 C) for about 5 minutes to produce a polythiophene polymer membrane.
- the thickness of the dried membrane was less than 5 ⁇ m.
- Conductivity was obtained by measuring surface resistance using an ohm meter (Mitsubishi Chemical, Loresta EP MCP-T360)
- Transparency was evaluated at 550 nm. Transparency of a coated substrate was represented in the form considering the transparency of a transparent substrate as 100% (Minolta, CM-3500d)
- Adhesiveness was obtained by evaluating the change in surface resistance after taping ten times with a taping tester (tape was purchased from Nitto). ⁇ Resistance change>
- Liquid stability was evaluated depending on presence of the aggregation after a week's storage at room temperature.
- Examples 1-3 As shown in Table 2, as compared to Comparative Examples 1-6, where a stabilizer was used without using a melamine resin, Examples 1-3, where a melamine resin component was used according to the present invention, showed an improvement in both the conductivity and the transparency as well as in the adhesiveness, membrane Homogeneity, liquid stability and, in particular, the waterproof property.
- a mixed solution composition was prepared as described in Example 1 by using the ingredients shown in Table 3.
- the mixed solution composition was coated onto a transparent substrate, dried in an oven (125 0 C) for about 5 minutes, and produced a polythiophene polymer membrane.
- the thickness of the dried membrane was less than 5 ⁇ m.
- Examples 4-8 showed an improvement in both the conductivity and the transparency as well as in the adhesiveness, membrane Homogeneity, a liquid stability and, in particular, the waterproof property as compared to Comparative Example 7, where a melamine resin and a binder were not used, as well as Comparative Examples 8-9, where a melamine resin was not used.
- a mixed solution composition was prepared as described in Example 1 by using the ingredients shown in Table 5.
- the mixed solution composition was coated onto a transparent substrate, dried in an oven (125 0 C) for about 5 minutes, and produced a polythiophene polymer membrane.
- the thickness of the dried membrane was less than 5 ⁇ m.
- Examples 9-12 showed an improvement in both the conductivity and the transparency as well as in the adhesiveness, membrane Homogeneity, a liquid stability and, in particular, the waterproof property as compared to Comparative Examples 10-11, where a melamine resin and a binder were not used, as well as Comparative Example 12, where a melamine resin was not used.
- the present invention relates to a polythiophene-based conductive polymer composition
- a polythiophene-based conductive polymer composition comprising 1) an aqueous solution of a polythiophene-based conductive polymer, 2) an alcohol-based organic solvent, 3) an amide-based organic solvent, and 4) a melamine resin.
- the present invention relates to a polythiophene-based conductive polymer composition
- a polythiophene-based conductive polymer composition comprising 1) an aqueous solution of a polythiophene-based conductive polymer, 2) an alcohol-based organic solvent, 3) an amide-based organic solvent, 4) a melamine resin, and 5) a binder selected from the group consisting of a polyester, a polyurethane and an alkoxy silane.
- the present invention relates to a polythiophene-based conductive polymer composition
- a polythiophene-based conductive polymer composition comprising 1) an aqueous solution of a polythiophene-based conductive polymer, 2) an alcohol-based organic solvent, 3) an aprotic highly-dipolar solvent, and 4) a melamine resin.
- the present invention relates to a polythiophene-based conductive polymer composition
- a polythiophene-based conductive polymer composition comprising 1) an aqueous solution of a polythiophene-based conductive polymer, 2) an alcohol-based organic solvent, 3) an aprotic highly-dipolar solvent, 4) a melamine resin, and 5) a binder selected from the group consisting of a polyester, a polyurethane and an alkoxy silane.
- the present invention relates to a polythiophene-based conductive polymer composition
- a polythiophene-based conductive polymer composition comprising an aqueous solution of a polythiophene-based conductive polymer, an alcohol-based organic solvent, an amide-based organic solvent or an aprotic highly-dipolar solvent, a melamine resin, and a binder selected from the group consisting of a polyester, a polyurethane and an alkoxy silane.
- the present invention relates to a polythiophene-based conductive polymer composition, which comprises: an amide-based organic solvent or an aprotic highly-dipolar solvent which partially dissolves a polymer portion in an aqueous solution of a polythiophene-based conductive polymer, thus increasing the connection between the polythiophene-based conductive polymers and the dispersion property; a melamine resin, NH + group of which binds with the SCV group in an aqueous solution of a polythiophene-based conductive polymer (Baytron P), thus
- a binder selected from the group consisting of a polyester, a polyurethane and an alkoxy silane, which increases the adhesiveness with the transparent substrate and the durability of the conductive membrane.
- This polythiophene-based conductive polymer solution improves both conductivity and transparency as well as other properties such as waterproof property, adhesiveness, durability, membrane Homogeneity and liquid stability
- a membrane or layer which shows both the conductivity of less than 1 k ⁇ /m 2 , preferably in the range of from 100 ⁇ /m 2 to 1 k ⁇ /m 2 and the transparency of 95%, preferably 95-99%, as well as other properties such as waterproof property, adhesiveness, durability, membrane Homogeneity and liquid stability, may be obtained by coating a polythiophene-based conductive polymer solution composition according to the present invention onto transparent substrate such as glass or synthetic resin film.
- the conductivity of less than 1 k ⁇ /m 2 is very high value that satisfies TCO (Tianstemanners Central Organization) enacted by laborer conference in Sweden, where the standard regarding the prevention of electromagnetic waves is the most tight.
- polyethylene dioxythiophene PEDT, specifically Baytron P purchased from Bayer
- P EDT polyethylene dioxythiophene
- PES polystyrene sulfonate
- the content of solid (PEDT and PSS) is controlled to be in the range of 1.0-1.5 wt% for optimizing the dispersion property.
- PEDT is well miscible with water, alcohol or a solvent with high dielectric constant, and may be easily coated with a coating material diluted with this kind of solvent. Further, the coated membrane shows superior transparency as compared to other conductive polymers such as polyaniline and polypyrrole.
- An aqueous solution of a polythiophene-based conductive polymer is used in an amount of 20-70 wt%, preferably 26-67 wt%. If the amount is less than 20 wt%, high conductivity of less than 1 k ⁇ /m 2 may not be achieved, although an amide-based organic solvent and an aprotic highly-dipolar (AHD) solvent is used in a large amount. If the amount is higher than 70 wt%, transparency may decrease down to less than 95%, in particular at a longer wavelength (higher than 550 ran) due to the increase in the amount of colored conductive polymer.
- AHD aprotic highly-dipolar
- C 1 -Q alcohols such as methanol, ethanol, propanol, isopropanol and butanol, may be used alone or in combination.
- methanol is preferred to be used as a main soh'ent to increase dispersion property of PEDT conductive polymer.
- An alcohol may be used in an amount of 10-75 wt%, preferably 10-71 wt%, more preferably 24-70 wt%, when used in combination with an amide-based organic solvent.
- an alcohol When used in combination with an aprotic highly-dipolar solvent, an alcohol may be used in an amount of 5-68 wt%, more preferably 20-62 wt%. If the amount is less than 10 wt%, high dispersion property of the coated membrane may
- amide-based organic solvent As an amide-based organic solvent, formamide (FA), N-methylformamide (NMFA), N,N-dimethylformamide (DMF), acetamide (AA), N-methylacetamide (NMAA), N-dimethylacetamide (DMA) or N-methylpyrrolidone (NMP) is preferred to be used.
- amide-based organic solvents have intramolecular amide group
- aprotic highly-dipolar solvent dimethyl sulfoxide (DMSO) or propylene carbonate (Propylene carbonate)
- DMSO dimethyl sulfoxide
- Propylene carbonate propylene carbonate
- the aprotic highly-dipolar solvent (AHD) and the amide-based solvent is preferred to be used separately.
- the mixture is not preferred because it may only slightly increase the conductivity, and may not allow achieving high transparency and a long-term liquid stability. High increase in conductivity may not be achieved by using an aprotic highly-dipolar solvent (AHD) alone.
- a dispersion stabilizer such as ethylene glycol (EG), glycerin and sorbitol, is preferred to be used.
- a dispersion stabilizer is preferred to be used in an amount of 1-10 wt%, preferably 4-10 wt%, relative to the amount of polythiophene-based conductive polymer solution composition. If the amount is less than 4 wt%, high conductivity may not be achieved. If the amount is higher than 10 wt%, high-temperature plasticization is required due to high boiling point, although high conductivity may be obtained.
- An amide-based organic solvent is preferred to use in an amount of 1-10 wt%, preferably 3-7 wt%, and an aprotic highly-dipolar solvent is used in an amount 5 of 1-10 wt %, preferably 4-8 wt%. If the amount is less than the aforementioned lower value, high conductivity may not be achieved. If the amount is higher than the aforementioned higher value, high-temperature plasticization may be necessary due to the increase in the portion of an amide-based solvent having high boiling temperature, although high conductivity may be achieved. High-temperature
- plasticization may decrease conductivity of PEDT conductive polymer and cause the deformation of substrate when only plastic with no glass is used as a substrate.
- PEDT conductive polymer solution herein comprises a water-soluble or alcohol-soluble polymer resin as a binder for increasing waterproof property, substrate adhesiveness and durability.
- a resin in an aqueous solution state is
- PEDT conductive polymer solution is an aqueous dispersion.
- the waterproof property may be poor because PEDT conductive polymer solution itself is an aqueous dispersion and the SCV group in the solution easily binds with water as well due to the use of a binder in an aqueous solution state for increasing adhesiveness.
- a melamine resin is used in the present invention as
- This melamine resin may increase both waterproof property and time-dependent electrical stability because the NH + group in a melamine resin binds with the SCV group in an aqueous solution of a polythiophene-based conductive polymer (Baytron P), thus preventing the SO3- group from binding with water.
- a melamine resin may be used in an amount of 1-10 wt%, preferably 1-8 wt%. If the amount is less than 1 wt%, the waterproof property of a conductive membrane may be poor. If the amount is higher than 10 wt%, there may be a limitation in increasing the conductivity although the waterproof property may be remarkably increased.
- a binder which increases the adhesiveness with the transparent substrate and the durability, may be selected among a polyester, a polyurethane resin and an alkoxy silane. For achieving higher adhesiveness, the aforementioned binders may used in combination. Particularly, a polyester resin is preferred to be used to increase the adhesiveness with the substrate when conducting a coating procedure onto a poly ethylene terephthalate film.
- a binder may be used in an amount of 0.1-5 wt%, preferably 0.5-4 wt%. If the amount is less than 0.1 wt%, the adhesiveness with the substrate and the durability of the conductive membrane may be poor. If the amount is higher than 5 wt%, there may be a limitation in increasing the conductivity. Besides, an additive for lowering viscosity and improving slipping property may additionally added in an amount of 0.05-5 wt% to prevent the blocking property (or to increase the slipping property) of the coated surface.
- a polythiophene conductive polymer solution composition herein having high conductivity, transparency, waterproof property and durability may be prepared by using the conventional method. Usable method may be divided into two groups; one is conducted by using an amide solvent and a melamine resin without additional dopant, and the other is conducted by using an aprotic highly-dipolar solvent (AHD) solvent and a melamine resin without using additional dopant.
- AHD aprotic highly-dipolar solvent
- prepared solution composition may be coated onto the glass surface of a Braun tube (TV, computer) or a transparent substrate of a casting polypropylene (CPP) film, a polyethylene terephthalate (PET) film and a polycarbonate and acrylic panel.
- CPP casting polypropylene
- PET polyethylene terephthalate
- polythiophene polymer membrane having transparency and conductivity, which may be used for preventing electromagnetic waves or preparing electrodes.
- the coating process may be conducted according to a bar coating, a roll coating, a flow coating, a dip coating or a spin coating.
- the thickness of the coated layer is less than 5 ⁇ m.
- prepared anti-static polymer membrane satisfies the TCO standards regarding the prevention of electromagnetic waves, and may be applied to transparent electrode film such as an upper or lower electrode film for touch panel and a film for inorganic EL electrode, which requires high conductivity, transparency, waterproof property and durability.
- polymer membrane prepared by using polythiophene-based conductive polymer solution composition of the present invention may be applied to a film for higher or lower electrode in touch panel, a transparent electrode film for display such as a film for an inorganic EL electrode, the surface of TV Braun tube and a screening layer in a computer monitor for preventing electromagnetic waves, which requires conductivity of less than 1 k ⁇ /m 2 , transparency of higher than 95%, high waterproof property and adhesiveness, as well as to other glass, polycarbonate acrylic plate, poly ethylene terephthalate or casting polypropylene (CPP) film.
- a transparent electrode film for display such as a film for an inorganic EL electrode, the surface of TV Braun tube and a screening layer in a computer monitor for preventing electromagnetic waves, which requires conductivity of less than 1 k ⁇ /m 2 , transparency of higher than 95%, high waterproof property and adhesiveness, as well as to other glass, polycarbonate acrylic plate, poly ethylene terephthalate or casting polypropylene (CPP) film.
Abstract
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Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
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CN2007800061111A CN101389710B (en) | 2006-02-21 | 2007-02-21 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
US12/160,551 US8338546B2 (en) | 2006-02-21 | 2007-02-21 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
JP2008555170A JP5027164B2 (en) | 2006-02-21 | 2007-02-21 | Polythiophene-based conductive polymer composition having high conductivity, transparency and moisture resistance, and polymer film using the same |
DE112007000160.7T DE112007000160B4 (en) | 2006-02-21 | 2007-02-21 | Composition comprising a polythiophene-based conductive polymer and use of the composition as a conductive polymer membrane coated on a substrate |
HK09104158.1A HK1125960A1 (en) | 2006-02-21 | 2009-05-05 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
US13/708,198 US9455060B2 (en) | 2006-02-21 | 2012-12-07 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
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KR20060016893 | 2006-02-21 | ||
KR10-2006-0016893 | 2006-02-21 | ||
KR10-2007-0017205 | 2007-02-21 | ||
KR1020070017205A KR100844476B1 (en) | 2006-02-21 | 2007-02-21 | Composition of Polythiophene conduvtive polymers having high conductivity, transparency, waterproof property and membrane using them |
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US12/160,551 A-371-Of-International US8338546B2 (en) | 2006-02-21 | 2007-02-21 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
US13/708,198 Division US9455060B2 (en) | 2006-02-21 | 2012-12-07 | Composition of polythiophene-based conductive polymers having high conductivity, transparency, waterproof property and a membrane prepared using the same |
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JP2012515099A (en) * | 2009-01-16 | 2012-07-05 | エスケイシー・カンパニー・リミテッド | Polymer film using conductive polymer solution composition and its structure |
JP2011146015A (en) * | 2010-01-14 | 2011-07-28 | Samsung Electro-Mechanics Co Ltd | Touch screen input device |
US20150262730A1 (en) * | 2012-10-03 | 2015-09-17 | Hutchinson | Transparent conductive electrode and associated production method |
US9905332B2 (en) | 2012-10-03 | 2018-02-27 | Hutchinson | Transparent conductive electrode and associated production method |
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