WO2005059034A1 - 無機粉体含有樹脂組成物、膜形成材料層、転写シート、誘電体層形成基板の製造方法、誘電体層形成基板、及びプラズマディスプレイパネル - Google Patents
無機粉体含有樹脂組成物、膜形成材料層、転写シート、誘電体層形成基板の製造方法、誘電体層形成基板、及びプラズマディスプレイパネル Download PDFInfo
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- WO2005059034A1 WO2005059034A1 PCT/JP2004/018792 JP2004018792W WO2005059034A1 WO 2005059034 A1 WO2005059034 A1 WO 2005059034A1 JP 2004018792 W JP2004018792 W JP 2004018792W WO 2005059034 A1 WO2005059034 A1 WO 2005059034A1
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- dielectric layer
- inorganic powder
- resin composition
- film
- containing resin
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/20—Constructional details
- H01J11/34—Vessels, containers or parts thereof, e.g. substrates
- H01J11/38—Dielectric or insulating layers
-
- 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
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L101/00—Compositions of unspecified macromolecular compounds
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
- H01J11/00—Gas-filled discharge tubes with alternating current induction of the discharge, e.g. alternating current plasma display panels [AC-PDP]; Gas-filled discharge tubes without any main electrode inside the vessel; Gas-filled discharge tubes with at least one main electrode outside the vessel
- H01J11/10—AC-PDPs with at least one main electrode being out of contact with the plasma
- H01J11/12—AC-PDPs with at least one main electrode being out of contact with the plasma with main electrodes provided on both sides of the discharge space
Definitions
- Inorganic powder-containing resin composition film-forming material layer, transfer sheet, method for producing dielectric layer-forming substrate, dielectric layer-forming substrate, and plasma display panel
- the present invention relates to an inorganic powder-containing resin composition that can be suitably used for forming a dielectric layer of a plasma display panel, a film-forming material layer using the composition, and a transfer sheet. More specifically, a method for manufacturing a novel inorganic powder-containing resin composition, a film forming material layer, a transfer sheet, and a dielectric layer forming substrate capable of forming a high quality dielectric layer having excellent optical characteristics. , A dielectric layer forming substrate, and a plasma display panel.
- PDPs plasma display panels
- a PDP is constructed by bonding a front panel and a rear panel.
- electrodes are patterned on the surface of the glass substrate that constitutes the front panel, and the surface is formed of a transparent dielectric layer. The structure is covered with.
- a paste-like composition comprising an inorganic powder, a binder (binder) resin, a solvent, and the like is applied until a predetermined thickness is formed on a glass substrate on which electrodes are fixed.
- a screen printing method in which coating is performed multiple times has been used.
- it is difficult to control variations in film thickness in addition, when paste-like compositions are applied in layers, fine particles in the air are involved, and firing is performed. This has caused problems such as causing defects in the later dielectric layer and complicating the operation and inferior in mass productivity.
- the paste-like composition containing an inorganic powder is applied on a support film in the form of a sheet, and dried to form a film-forming material layer on the support film.
- a laminated transfer film is devised. Using this transfer film, the film-forming material layer formed on the support film is transferred to a glass substrate on which the electrodes are fixed.
- a method is disclosed in which a dielectric layer is formed on the surface of the glass substrate by batch-transferring the film-forming material layer onto the surface of a plate and baking the transferred film-forming material layer (see Patent Document 1).
- a method has been disclosed in which a glass powder is stably dispersed by adding an acrylic resin having a hydrophilic group to a binder resin in the glass paste composition. Since the glass paste composition does not generate agglomerates of glass powder in the glass paste composition, a film defect or the like occurs in a film forming material layer formed by molding the composition into a sheet. In particular, it is described that a glass sintered body having a high light transmittance can be obtained by baking the film forming material layer (see Patent Document 2).
- Patent Document 1 Japanese Patent Application Laid-Open No. 9-102273
- Patent Document 2 JP-A-10-324541
- the present invention has been made to solve the conventional problems as described above.
- the present inventors have made an inorganic powder-containing resin composition, in addition to an inorganic powder and a binder resin, an alkali resin.
- an inorganic powder-containing resin composition in addition to an inorganic powder and a binder resin, an alkali resin.
- at least one metal compound selected from the group consisting of a metal compound, an alkaline earth metal compound, and a lead-based compound an extremely excellent effect is obtained in the defoaming property (bubble releasing property) in the firing step. This led to the completion of the present invention.
- the inorganic powder-containing resin composition of the present invention has a remarkable effect in preventing bubbles from remaining in the dielectric layer, and therefore, when a transfer sheet using the inorganic powder-containing resin composition is used, Even after firing in a low temperature range (for example, at 600 ° C. or lower), a dielectric layer having high optical transmittance and high optical transmittance, free from defects and fogging, can be formed after firing.
- a low temperature range for example, at 600 ° C. or lower
- the inorganic powder-containing resin composition of the present invention comprises at least one selected from the group consisting of an inorganic powder, a binder resin, an alkali metal compound, an alkaline earth metal compound and a lead compound. And a metal compound.
- the alkali metal compound is preferably at least one selected from the group consisting of a lithium compound, a potassium compound and a sodium compound.
- the inorganic powder is a glass powder
- the binder resin is a (meth) acrylic resin.
- the viscosity of the inorganic powder at 600 ° C. is preferably 150 Pa's or less.
- the present invention also relates to a film-forming material layer formed by forming the inorganic powder-containing resin composition into a sheet, and to a transfer sheet in which the film-forming material layer is laminated on a support film.
- the present invention provides a method for transferring a film-forming material layer of the transfer sheet onto a substrate
- the present invention relates to a method for manufacturing a dielectric layer forming substrate including a step of firing a material layer, and a dielectric layer forming substrate manufactured by the method.
- the light transmittance of the dielectric layer forming substrate is preferably 80% or more, more preferably 81% or more, and particularly preferably 82% or more.
- the present invention relates to a plasma display panel using the above-mentioned dielectric layer-formed substrate.
- the inorganic powder-containing resin composition of the present invention comprises, in addition to the inorganic powder and the binder resin, at least one kind of metal selected from the group consisting of an alkali metal compound, an alkaline earth metal compound and a lead compound. Since the compound is contained as an additive and the effect of the additive promotes defoaming in the firing step, no bubbles remain in the dielectric layer after firing.
- the resin composition containing an inorganic powder of the present invention is effective for firing at a low temperature range of 600 ° C or less, and after firing, defects such as craters and pinholes caused by bubbles and clouding are caused. It is possible to manufacture a dielectric layer which is free from occurrence of light and has a high light transmittance, and a dielectric layer-formed substrate on which the dielectric layer is formed.
- the inorganic powder-containing resin composition of the present invention comprises, in addition to the inorganic powder and the binder resin, at least one metal compound selected from the group consisting of an alkali metal compound, an alkaline earth metal compound and a lead compound as an additive. Contains. Therefore, the step of transferring a transfer sheet having a film-forming material layer made of the resin composition containing an inorganic powder of the present invention onto a glass substrate on which electrodes are patterned and firing the transferred film-forming material layer is not limited. Furthermore, it is excellent in the ability to degas the gas and the internal bubbles generated by the decomposition of the organic component of the film forming material layer during firing. Further, since no air bubbles remain after firing, it is possible to form a dielectric layer having high optical transmittance and high optical transmittance without causing defects or fogging in the dielectric layer.
- the inorganic powder-containing resin composition of the present invention further comprises, in addition to the inorganic powder and the binder resin, an alkali metal compound as an additive for promoting defoaming and preventing bubbles from remaining in the dielectric layer. It is characterized by containing at least one kind of metal compound selected from the group consisting of alkaline earth metal compounds and lead compounds.
- an alkali metal compound, an alkaline earth metal compound, and a lead-based compound do not refer to a material (for example, lead oxide or the like) previously contained as a component of a glass powder described later.
- a material for example, lead oxide or the like
- they are separately added to the inorganic powder-containing resin composition of the present invention separately from the glass powder. More than one species can be used in combination.
- oxides, peroxides, hydroxides, inorganic salts, and organic salts of lithium, sodium, potassium, rubidium, cesium, and francium can be used.
- Specific examples of the sodium compound include sodium oxide, sodium peroxide, sodium hydroxide, sodium chloride, sodium bromide, sodium iodide, sodium fluoride, sodium carbonate, sodium hydrogen carbonate, sodium sulfate, and sodium sulfite.
- the potassium compound include potassium oxide, potassium peroxide, potassium hydroxide, potassium chloride, potassium bromide, potassium iodide, potassium fluoride, potassium carbonate, potassium hydrogen carbonate, potassium sulfate, and sulfurous acid.
- examples thereof include potassium, potassium nitrate, potassium nitrite, potassium acetate, potassium propionate, potassium butyrate, and potassium phosphate.
- Similar compounds can be used for other alkali metals.
- sodium hydroxide or potassium hydroxide it is possible to increase the light transmittance of the dielectric layer forming substrate to 81% or more.
- the alkaline earth metal compound used in the present invention includes oxides, peroxides, hydroxides, beryllium, magnesium, potassium, strontium, barium, and radium.
- Organic salts and organic salts can be used.
- magnesium compound examples include magnesium oxide, magnesium peroxide, magnesium hydroxide, magnesium chloride, magnesium bromide, magnesium iodide, magnesium fluoride, magnesium carbonate, magnesium hydrogen carbonate, magnesium sulfate, and sulfurous acid.
- examples thereof include magnesium acid, magnesium nitrate, magnesium nitrite, magnesium acetate, magnesium propionate, magnesium butyrate, and anhydrous magnesium phosphate.
- Specific examples of the calcium-based compound include calcium oxide, calcium peroxide, calcium hydroxide, calcium chloride, calcium bromide, calcium iodide, calcium fusidani, calcium carbonate, calcium hydrogen carbonate, calcium sulfate, and sulfite.
- Examples include calcium, calcium nitrate, calcium nitrite, calcium acetate, calcium propionate, calcium butyrate, and calcium phosphate. Similar compounds can be used for other alkaline earth metals. Among these, magnesium compounds and calcium compounds are particularly preferable because they show a remarkable effect on defoaming properties and improve the light transmittance of the dielectric layer. It is preferable to use
- the proportion of the alkali metal compound or alkaline earth metal compound to be added to the inorganic powder-containing resin composition of the present invention is not particularly limited.
- the content is preferably from 01 to 10 parts by weight, more preferably from 0.05 to 1.0 part by weight. If the addition amount of the alkali metal compound or alkaline earth metal compound is less than 0.01 parts by weight with respect to 100 parts by weight of the inorganic powder, the deocclusion effect in the firing step is poor, and the dielectric layer However, if the amount exceeds 10 parts by weight with respect to 100 parts by weight of the inorganic powder, the alkali metal compound is contained in the film forming material layer in the firing step.
- alkaline earth metal compounds are locally segregated, and these compounds, which cannot be completely decomposed and removed after firing, remain in the dielectric layer as residues, which deteriorates the optical properties and deteriorates the surface smoothness This is not preferable because it tends to cause inconvenience.
- oxides, peroxides, hydroxides, inorganic salts, and organic salts can be used.
- lead oxide, lead peroxide, and water can be used.
- lead oxide can be suitably used in that it has a remarkable effect on the defoaming property and improves the light transmittance of the dielectric layer.
- the light transmittance of the dielectric layer forming substrate is 81. / 0 or more is possible.
- the ratio of the lead compound to be added to the inorganic powder-containing resin composition of the present invention is not particularly limited, but is 0.01% by weight or more and 10% by weight with respect to 100 parts by weight of the inorganic powder. And more preferably 0.1 part by weight or more and 6 parts by weight or less.
- the amount of the lead-based compound is less than 0.01 part by weight based on 100 parts by weight of the inorganic powder, the defoaming effect is poor in the firing step, and bubbles remain in the dielectric layer, which is high.
- the transmittance exceeds 10 parts by weight with respect to 100 parts by weight of the inorganic powder, the lead-based compound is locally biased in the film forming material layer during the firing step.
- inorganic powders can be used without particular limitation, and specifically, silicon oxide, titanium oxide, aluminum oxide, calcium oxide, boron oxide, zinc oxide, glass powder And the like. These inorganic powders preferably have an average particle diameter of 0.1- ⁇ from the viewpoint of dispersion stability.
- glass powder as the inorganic powder.
- Known glass powders can be used without particular limitation. For example, 1) a mixture of zinc oxide, boron oxide, and silicon oxide ( ⁇ B 2 O—SiO), 2) zinc oxide, boron oxide, oxide
- a glass powder having a softening point in the range of 400 ° C. to 650 ° C. is preferable.
- a glass powder having a viscosity at 600 ° C. of 150 Pa's or less is more preferable for use in forming a dielectric layer, and more preferably 20 Pa's or more and 140 Pa's or less. It is.
- the viscosity at 600 ° C. of the glass powder exceeds 150 Pa ′s, bubbles are effectively removed by the addition of the alkali metal compound described as an additive specific to the present invention. Even if a high light transmittance is obtained, traces of the bubbles may remain in the dielectric layer, and good surface smoothness may not be obtained.
- the binder resin used in the present invention known resins can be used without any particular limitation. However, in order to allow a film-forming material layer as a transfer sheet to follow an electrode pattern-formed on a substrate. It is preferable to use a (meth) acrylic resin from the viewpoint of improving the necessary step absorbability and transferability. In the present invention, it is preferable to use a (meth) acrylic resin having a carboxyl group. By introducing a carboxy group into the (meth) acrylic resin, the cohesiveness of the transfer sheet on which the film forming material layer is formed can be increased to increase the strength, and the surface smoothness of the fired dielectric layer can be improved. Can be improved.
- the content of the binder resin in the inorganic powder-containing resin composition of the present invention is preferably 5 parts by weight or more and 50 parts by weight or less, more preferably 10 parts by weight, based on 100 parts by weight of the inorganic powder. Not less than 40 parts by weight, more preferably not less than 15 parts by weight and not more than 30 parts by weight. If the content of the binder resin is less than 5 parts by weight with respect to 100 parts by weight of the inorganic powder, it becomes difficult to form the inorganic powder in the sheet-like film-forming material layer, while 50 parts by weight If it exceeds, the sheet is likely to be deformed, and the shape stability during storage tends to be poor, which is not preferable.
- the (meth) acrylic resin used as the binder resin in the present invention preferably has a weight average molecular weight of 50,000 to 500,000, more preferably 50,000 to 300,000.
- weight average molecular weight of the (meth) acrylic resin is less than 50,000, when the inorganic powder-containing resin composition is applied on a support film to form a film-forming material layer in a sheet shape, The strength of the material layer is inferior, causing brittle cracks, and when used as a transfer sheet, sufficient transferability to the substrate cannot be obtained, resulting in reduced workability. Therefore, it is not preferable.
- the weight average molecular weight of the (meth) acrylic resin exceeds 500,000, the viscosity of the inorganic powder-containing resin composition increases, and the dispersibility of the inorganic powder deteriorates.
- the (meth) acrylic resin is a polymer of an acrylic monomer and / or a methacrylic monomer, a copolymer of the monomer and another polymerizable monomer, or a mixture thereof. Good.
- a carboxy group-containing monomer is copolymerized with the monomer to obtain a carboxyl group-containing (meth) acrylic resin from the viewpoint of improving the surface smoothness of the dielectric layer. .
- (meth) acrylic monomer examples include methyl (meth) acrylate, ethyl (meth) acrylate, propyl (meth) acrylate, isopropyl (meth) acrylate, and butyl (meth) acrylate.
- carboxyl group-containing monomer examples include (meth) acrylic acid, 2-methylcis (meth) acrylic acid, arylacetic acid, crotonic acid, maleic acid, methylmaleic acid, fumaric acid, methylfumaric acid, dimethyl Fumaric acid, itaconic acid, and butyl acetic acid;
- these monomer having a propyloxyl group are preferably used.
- the (meth) acrylic resin preferably contains 0.110 mol% of a carboxyl group-containing monomer.
- the proportion of the carboxyl group-containing monomer contained is less than 0.1 mol%, the cohesive force of the film-forming material layer formed on the support film becomes poor and the strength as a transfer sheet is inferior. If more than 10 mol% However, it is not preferable because it tends to cause degradation of the optical characteristics of the dielectric layer which is easily decomposed and removed at the time of firing.
- the glass transition temperature of the (meth) acrylic resin is preferably 30 ° C. or less, more preferably 20 ° C. or less. When the glass transition temperature is higher than 30 ° C., the resulting transfer sheet is inflexible, and has poor step absorbability and transferability, resulting in poor handling.
- the glass transition temperature of the (meth) acrylic resin can be adjusted to 30 ° C. or lower by appropriately changing the composition ratio of the copolymer used.
- the transfer sheet when a transfer sheet having a film-forming material layer formed by applying an inorganic powder-containing resin composition onto a support film is prepared, the transfer sheet is formed so as to be uniformly applied on the support film. It is preferred to add a solvent to the composition.
- the solvent used in the present invention is not particularly limited as long as it has a good affinity for the inorganic powder and a good solubility with the binder resin.
- terbineol, dihydro- ⁇ -terpineol, dihydro- ⁇ -terpinyl acetate, butyl carbitol noreacetate, butynolecanolebitone isopropyl alcohol, benzyl alcohol, turpentine, getyl ketone, methyl butyl ketone, dipropyl ketone, cyclopropyl Xanone, ⁇ -pentanol, 4-methynoleic 2-pentanol, cyclohexanol, diacetone alcohol, ethylene glycol monomethyl ether, ethylene glycol monomethyl ether, ethylene glycol monobutyl ether, diethylene glycol monomethyl ether, diethylene glycol monoethyl Ether, diethylene glycol monobutyl ether, propylene
- the amount of the solvent used in the present invention is preferably from 10 to 100 parts by weight, more preferably from 20 to 70 parts by weight, based on 100 parts by weight of the inorganic powder. Below, particularly preferably 30 to 50 parts by weight. If the amount of the solvent is less than 10 parts by weight, it becomes difficult to disperse the inorganic powder, and when it is used as a transfer sheet, the film forming material layer is brittle and the sheet formability is inferior. In such a case, the transfer sheet becomes insufficiently dried, and when transferred to a substrate and fired in a firing furnace, the working environment is deteriorated by the solvent evaporated, which is not preferable.
- a plasticizer may be added to the inorganic powder-containing resin composition of the present invention.
- a plasticizer By adding a plasticizer, the flexibility and flexibility of the transfer sheet on which the film-forming material layer is formed by coating the inorganic powder-containing resin composition on the support film, and the transfer of the film-forming material layer to the substrate The transferability and the like can be adjusted.
- the amount of the plasticizer to be added in the present invention is preferably 20 parts by weight or less, more preferably 15 parts by weight or less, and even more preferably 10 parts by weight or less based on 100 parts by weight of the inorganic powder. If the amount of the plasticizer exceeds 20 parts by weight, the strength of the resulting transfer sheet is undesirably reduced.
- additives such as a silane coupling agent, a tackifier, a leveling agent, a stabilizer, and an antifoaming agent are added to the inorganic powder-containing resin composition of the present invention. May be.
- the transfer sheet of the present invention is composed of a support film and at least a film-forming material layer formed on the support film, and the film-forming material layer formed on the support film is collectively formed on the substrate surface. It is used for transfer.
- the transfer sheet is produced by applying the inorganic powder-containing resin composition on a support film, and removing the solvent by drying to form a belly-forming material layer.
- the support film constituting the transfer sheet in the present invention is preferably a resin film having heat resistance and solvent resistance and having flexibility. Since the supporting film has flexibility, the paste-like inorganic powder-containing resin composition can be applied by a roll coater or the like, and the film-forming material layer is stored in a rolled state and stored. Can supply S.
- polyester resins such as polyethylene terephthalate, polyolefin resins such as polyethylene and polypropylene, polystyrene, polyimide, polybutyl alcohol, polychlorinated vinyl, and the like.
- Polyph examples thereof include fluorine-containing resins such as fluoroethylene, nylon, and cellulose.
- the thickness of the support film is not particularly limited, but is preferably in the range of 25 Pm to 100 Pm in order to stably maintain the shape of the transfer sheet.
- the surface of the support film is preferably subjected to a release treatment. This makes it easy to remove the support film in the step of transferring the film-forming material layer onto the substrate.
- the method for applying the inorganic powder-containing resin composition of the present invention on the support film includes, for example, roll coaters such as gravure, kiss, and comma, die coaters such as slots and fountains, squeeze coaters, and curtain coaters. If a uniform coating film can be formed on a force-supporting film that can adopt a coating method such as the above, it can be any method.
- the thickness of the film-forming material layer made of the resin composition containing an inorganic powder of the present invention varies depending on the content of the inorganic powder, the type and size of the substrate on which the dielectric layer is formed, and the like. above 200, preferably in the preferred gesture et it is beta m or less is less than 30 mu m or more 100 / im. If the thickness is less than 10 / m, the thickness of the finally formed dielectric layer becomes insufficient, and the desired dielectric properties tend not to be secured. In such a case, it is difficult to maintain the shape of the transfer sheet, and the storage stability in a state where the film forming material layer is wound up in a roll shape is not preferable.
- the thickness of the film forming material layer is 30 ⁇ m or more and 100 ⁇ m or less, a sufficient film thickness required for the dielectric layer in the PDP after firing can be secured. Furthermore, the more uniform the film thickness of the film forming material layer, the more preferable the thickness tolerance is preferably within ⁇ 5%.
- the transfer sheet of the present invention may be provided with a protective film on the surface of the film forming material layer.
- a material for forming the protective film for example, a polyester resin such as polyethylene terephthalate, a polyolefin resin such as polyethylene and polypropylene, a polystyrene, a polyimide, a polybutyl alcohol, a polychlorinated butyl, and a fluororesin such as polyfluoroethylene, Nylon, cellulose and the like can be mentioned.
- the transfer sheet covered with the protective film can be stored and supplied in a state of being wound into a roll. Note that the surface of the protective film may be subjected to a release treatment.
- the method of manufacturing a substrate for forming a dielectric layer according to the present invention is characterized in that: The method includes a transfer step of transferring the material layer to the substrate, and a firing step of firing the transferred film forming material layer at, for example, 400 ° C. or more and 650 ° C. or less to form a dielectric layer on the substrate.
- examples of the substrate on which the dielectric layer is formed include a substrate of ceramic, metal, or the like.
- a glass substrate on which appropriate electrodes are fixed is used. .
- step of transferring the film-forming material layer to the glass substrate in the present invention is shown below.
- the method is particularly limited as long as the film-forming material layer can be transferred to and adhered to the substrate surface. Not something.
- the transfer sheet After the protective film of the transfer sheet appropriately used in the present invention is peeled off, the transfer sheet is superimposed on the surface of the glass substrate on which the electrodes are fixed so that the surface of the film forming material layer abuts. After the transfer sheet is thermocompressed with a heating roll type laminator or the like, the support film is peeled off from the film forming material layer. As a result, the film-forming material layer is transferred to and adhered to the glass substrate surface.
- the surface temperature of the laminator is 25 ° C. or more and 100 ° C. or less
- the roll linear pressure is 0.5 kg / cm or more and 15 kg / cm or less
- the moving speed is 0 lm / min to 5m / min, but not limited to these conditions.
- the glass substrate may be preheated. The preheating temperature may be in the range of 60 ° C or more and 100 ° C or less.
- the firing step of the film forming material layer in the present invention is shown below.
- the method is particularly limited as long as the film forming material layer can be sintered under appropriate heating to form a dielectric layer on the substrate. It is not done.
- an organic substance binder resin, additive, etc.
- Additives, residual solvents, etc. are decomposed and removed, and the inorganic powder (glass powder) is melted and sintered.
- a dielectric layer made of an inorganic sintered body (glass sintered body) is formed on the glass substrate, and the dielectric layer forming substrate of the present invention is manufactured.
- the thickness of the dielectric layer in the dielectric layer forming substrate may be in the range of 15 ⁇ m or more and 50 ⁇ m or less depending on the thickness of the film forming material layer used.
- the dielectric layer-formed substrate obtained by using the resin composition containing an inorganic powder of the present invention has no defects such as craters and pinholes on the surface of the dielectric layer, and is free from fogging because of no fogging. It also has excellent optical characteristics, and is particularly suitable for forming a dielectric layer provided on the front panel of a PDP.
- the prepared polymer was dissolved in THF at 0 ⁇ lwt%, and the weight average molecular weight was measured in terms of polystyrene using GPC (gel permeation chromatography).
- GPC gel permeation chromatography
- the GPC used was “HLC-8220GPC” manufactured by Toso Corporation, and “TSK gel Super HZM—H, H—RC, HZ—H” manufactured by Toso Corporation was used as the column, and THF was used as the eluent. Was.
- the flow rate of the eluate was 0.6 mL / min
- the injection amount was 20 / iL
- the temperature of the column was 40 ° C.
- the formed polymer was molded to a thickness of lmm and punched out to a diameter of 8mm, and the temperature dependence of the loss elastic modulus G "was measured at a frequency of 1Hz using a dynamic viscoelasticity measuring device (manufactured by Rheometrics).
- the temperature at the peak top in the obtained curve of the loss modulus G " was defined as the glass transition temperature Tg.
- the viscosity of the glass powder at 600 ° C. was measured using a parallel plate deformation Z rotational viscometer (manufactured by Agne Technology Center, product name “WRVM-313 Kai”) as a glass viscosity measuring device.
- the glass powder, which was a sample was melted at 1000 ° C., then put into a platinum cylindrical container, and the cooled sample was formed into a cylindrical shape.
- the sample formed into a cylindrical shape was sandwiched between parallel disks having a diameter of 30 mm, and heated at 600 ° C. to measure the viscosity at a disk gap of 1.3 mm and a rotation speed of 60 rpm.
- the polymerization reaction was carried out for about 8 hours while maintaining the liquid temperature in the flask at around 75 ° C. to prepare a methacrylic resin solution having a solid content of 50% by weight.
- the weight-average molecular weight of the resulting metal-based resin was 100,000, and the glass transition temperature was ⁇ 10 ° C.
- a roll coater Using a roll coater, apply the prepared inorganic powder-containing resin composition to a support film obtained by subjecting a 50 ⁇ m-thick polyethylene terephthalate (PET) film to a release agent treatment, using a roll coater. The solvent was removed by drying at C for 5 minutes to form a film forming material layer having a thickness of 68 ⁇ . Thereafter, a 38 ⁇ m-thick polyethylene terephthalate film having a silicone-based release treatment on the surface was covered as a protective film on the film-forming material layer, and wound up in a roll shape to prepare a transfer sheet.
- PET polyethylene terephthalate
- the transfer sheet After peeling off the protective film of the transfer sheet, the transfer sheet was overlaid so as to be in contact with the surface of the glass substrate for a panel (the fixed surface of the bus electrode) and thermocompression-bonded using a heating roll type laminator.
- the pressure bonding conditions were a heating roll surface temperature of 80 ° C, a roll linear pressure of lkg / cm, and a roll moving speed of lmZ minutes.
- the glass substrate onto which the film-forming material layer has been transferred is placed in a firing furnace, and the temperature in the furnace is raised from room temperature to 590 ° C. at a rate of 10 ° C./min.
- a dielectric layer composed of a sintered glass was formed on the surface of the glass substrate by maintaining the substrate at a temperature of 60 ° C. for 60 minutes, thereby producing a dielectric layer-formed glass substrate.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- Inorganic powder was contained in the same manner as in Example 1 except that 0.1 part by weight of sodium hydroxide (NaOH, manufactured by Tokyo Chemical Industry Co., Ltd.) was used instead of lithium hydroxide monohydrate as the alkali metal compound.
- a resin composition was prepared.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1, except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 11 m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- Example 2 The same method as in Example 1 was used except that 0.2 parts by weight of potassium hydroxide (KOH, manufactured by Wako Pure Chemical Industries, Ltd.) was used instead of lithium hydroxide monohydrate as the alkali metal compound.
- KOH potassium hydroxide
- An inorganic powder-containing resin composition was prepared.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1 except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- Example 2 The same as in Example 1 except that 0.3 parts by weight of anhydrous sodium phosphate (Na PO, manufactured by Wako Pure Chemical Industries, Ltd.) was used instead of lithium hydroxide monohydrate as the alkali metal compound.
- Na PO anhydrous sodium phosphate
- An inorganic powder-containing resin composition was prepared by the method.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1 except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- An inorganic powder was prepared in the same manner as in Example 1 except that 1 part by weight of magnesium oxide (MgO, manufactured by Kishida Chemical Co., Ltd.), which is an alkaline earth metal compound, was used instead of lithium hydroxide monohydrate.
- a containing resin composition was prepared.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1 except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- Example 2 The same method as in Example 1 was repeated except that 2 parts by weight of calcium oxide (Ca ⁇ , manufactured by Wako Pure Chemical Industries, Ltd.), which is an alkaline earth metal compound, was used instead of lithium hydroxide monohydrate. A powder-containing resin composition was prepared.
- Ca ⁇ calcium oxide
- Wako Pure Chemical Industries, Ltd. which is an alkaline earth metal compound
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1, except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- Example 1 Except that 17 parts by weight of the methacrylic resin, 30 parts by weight of terbineol as a solvent, and 0.2 part by weight of lead oxide (PbO, manufactured by Wako Pure Chemical Industries, Ltd.) as a lead compound were used.
- An inorganic powder-containing resin composition was prepared in the same manner as in Example 1.
- a transfer sheet was prepared in the same manner as in Example 1.
- the glass substrate onto which the film-forming material layer has been transferred is placed in a firing furnace, and the temperature in the furnace is raised from room temperature to 600 ° C at a rate of 10 ° C / min.
- a glass substrate with a dielectric layer formed thereon was produced in the same manner as in Example 1, except that the substrate was maintained for 60 minutes to form a dielectric layer made of a glass sintered body on the surface of the glass substrate.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- lead bromide As a lead compound, 0.4 parts by weight of lead bromide (PbBr, manufactured by Wako Pure Chemical Industries, Ltd.) was added.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 7, except that the above-mentioned resin composition containing an inorganic powder was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- An inorganic powder-containing resin composition was prepared in the same manner as in Example 1, except that the alkali metal compound was not blended.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 1 except that the above-mentioned inorganic powder-containing resin composition was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- a methacrylic resin was prepared in the same manner as in Example 1.
- An inorganic powder-containing resin composition was prepared in the same manner as in Example 7, except that the lead compound was not blended.
- a transfer sheet and a dielectric layer-formed glass substrate were produced in the same manner as in Example 7, except that the above-mentioned resin composition containing an inorganic powder was used.
- the thickness of this dielectric layer was 30 ⁇ m.
- the light transmittance (%) of the obtained dielectric layer-formed glass substrate was measured.
- the light transmittance was evaluated by measuring the total light transmittance using a haze meter (HM-150, manufactured by Murakami Color Research Laboratory).
- HM-150 manufactured by Murakami Color Research Laboratory.
- the inorganic powder-containing resin composition of the present invention containing at least one metal compound selected from the group consisting of an alkali metal compound, an alkaline earth metal compound and a lead-based compound as an additive is shown.
- the light transmittance of the glass substrate on which the dielectric layer was formed was 80% or more, and it was clear that the glass substrate had high transparency.
- the inorganic powder-containing resin compositions of Comparative Examples 1 and 2 did not contain the additives, and thus did not have a defoaming effect at the time of firing, and bubbles remained in the dielectric layer. This resulted in a decrease in light transmittance, which resulted in insufficient transparency required for the dielectric layer of the PDP.
- the inorganic powder-containing resin composition in addition to the constituents of the inorganic powder, the inorganic powder-containing resin composition newly contains additives such as alkali metal compounds, alkaline earth metal compounds, and lead compounds.
- additives such as alkali metal compounds, alkaline earth metal compounds, and lead compounds.
- the inorganic powder-containing resin composition of the present invention is remarkable in preventing bubbles from remaining in the dielectric layer. Therefore, even if firing is performed in a low temperature range, the dielectric layer does not cause defects or fogging after firing. Therefore, it is possible to manufacture a dielectric layer-formed substrate on which a dielectric layer having high light transmittance and excellent optical characteristics is formed.
- the transfer sheet of the present invention can be suitably used for forming a dielectric layer on a front panel of a PDP requiring high transparency.
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN2004800376103A CN1894343B (zh) | 2003-12-18 | 2004-12-16 | 含无机粉末的树脂组合物、成膜材料层、转印片、介电层形成基板的制造方法、介电层形成基板、以及等离子显示板 |
Applications Claiming Priority (4)
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JP2003420341 | 2003-12-18 | ||
JP2003-420341 | 2003-12-18 | ||
JP2004-360024 | 2004-12-13 | ||
JP2004360024A JP3877173B2 (ja) | 2003-12-18 | 2004-12-13 | 膜形成材料層、転写シート、誘電体層形成基板の製造方法、および誘電体層形成基板 |
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WO2005059034A1 true WO2005059034A1 (ja) | 2005-06-30 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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PCT/JP2004/018792 WO2005059034A1 (ja) | 2003-12-18 | 2004-12-16 | 無機粉体含有樹脂組成物、膜形成材料層、転写シート、誘電体層形成基板の製造方法、誘電体層形成基板、及びプラズマディスプレイパネル |
Country Status (5)
Country | Link |
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JP (1) | JP3877173B2 (ja) |
KR (1) | KR20060135706A (ja) |
CN (1) | CN1894343B (ja) |
TW (1) | TW200531991A (ja) |
WO (1) | WO2005059034A1 (ja) |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0525347A (ja) * | 1991-07-23 | 1993-02-02 | Fujikura Ltd | 難燃性組成物 |
JPH10139922A (ja) * | 1996-11-14 | 1998-05-26 | Mizusawa Ind Chem Ltd | 塩素含有重合体用非移行性安定剤及び塩素含有重合体組成物 |
JP2000011759A (ja) * | 1998-06-17 | 2000-01-14 | Tanaka Kikinzoku Kogyo Kk | 導体組成物 |
JP2000128567A (ja) * | 1998-10-22 | 2000-05-09 | Nippon Electric Glass Co Ltd | プラズマディスプレーパネル用材料 |
JP2002146114A (ja) * | 2000-11-10 | 2002-05-22 | Dow Corning Toray Silicone Co Ltd | ポリオレフィン系樹脂組成物およびその製造方法 |
JP2002249667A (ja) * | 2001-02-26 | 2002-09-06 | Jsr Corp | 誘電体層形成用転写フィルムおよびプラズマディスプレイパネル |
-
2004
- 2004-12-13 JP JP2004360024A patent/JP3877173B2/ja not_active Expired - Fee Related
- 2004-12-16 KR KR1020067013986A patent/KR20060135706A/ko not_active Application Discontinuation
- 2004-12-16 CN CN2004800376103A patent/CN1894343B/zh not_active Expired - Fee Related
- 2004-12-16 WO PCT/JP2004/018792 patent/WO2005059034A1/ja active Application Filing
- 2004-12-17 TW TW093139503A patent/TW200531991A/zh unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0525347A (ja) * | 1991-07-23 | 1993-02-02 | Fujikura Ltd | 難燃性組成物 |
JPH10139922A (ja) * | 1996-11-14 | 1998-05-26 | Mizusawa Ind Chem Ltd | 塩素含有重合体用非移行性安定剤及び塩素含有重合体組成物 |
JP2000011759A (ja) * | 1998-06-17 | 2000-01-14 | Tanaka Kikinzoku Kogyo Kk | 導体組成物 |
JP2000128567A (ja) * | 1998-10-22 | 2000-05-09 | Nippon Electric Glass Co Ltd | プラズマディスプレーパネル用材料 |
JP2002146114A (ja) * | 2000-11-10 | 2002-05-22 | Dow Corning Toray Silicone Co Ltd | ポリオレフィン系樹脂組成物およびその製造方法 |
JP2002249667A (ja) * | 2001-02-26 | 2002-09-06 | Jsr Corp | 誘電体層形成用転写フィルムおよびプラズマディスプレイパネル |
Also Published As
Publication number | Publication date |
---|---|
TW200531991A (en) | 2005-10-01 |
KR20060135706A (ko) | 2006-12-29 |
CN1894343A (zh) | 2007-01-10 |
JP3877173B2 (ja) | 2007-02-07 |
JP2005200639A (ja) | 2005-07-28 |
CN1894343B (zh) | 2010-04-28 |
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