Patent application number | Description | Published |
20090122401 | ADHESIVE FOR POLARIZING PLATE, POLARIZING PLATE, MANUFACTURING METHOD THEREFOR, OPTICAL FILM AND IMAGE DISPLAY - An adhesive of the present invention is used for polarizing plate to provide a transparent protective film on at least one side of a polarizer and comprises a resin solution comprising a polyvinyl alcohol-based resin, a crosslinking agent and a leveling agent containing an acetylene skeleton-containing compound, wherein 0.01 to 10 parts by weight of the leveling agent is added to 100 parts by weight of the polyvinyl alcohol-based resin. The adhesive for polarizing plate can provide a satisfactory wettability when applied to transparent protective films and allows the production of polarizing plates to have water resistance at high temperature and satisfactory optical properties. | 05-14-2009 |
20090324944 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive optical film of the present invention comprises: an optical film; and a pressure-sensitive adhesive layer placed on at least one side of the optical film, wherein the pressure-sensitive adhesive layer has an equilibrium moisture content ratio (a) of 0.5% by weight or less, the pressure-sensitive adhesive layer shows a displacement amount (b) of 600 μm or less in one hour at 23° C., when a tensile shearing stress of 500 gf is applied to an adhesion area of 10 mm×10 mm having a thickness of 25 μm, and the equilibrium moisture content ratio (a) and the displacement amount (b) satisfy the relation: b<1036.4×e | 12-31-2009 |
20120057230 | POLARIZING PLATE MANUFACTURING METHOD - A method for manufacturing a polarizing plate comprising a polarizing film and a transparent protective film provided on at least one surface of the polarizing film, the method comprising the steps of: subjecting at least a surface of the transparent protective film to be bonded to the polarizing film to an adhesion improving treatment; bringing water into contact with at least the surface subjected to the adhesion improving treatment; and laminating the transparent protective film on the polarizing film so that the surface subjected to the adhesion improving treatment and brought into contact with water is bonded to the polarizing film. | 03-08-2012 |
20120064340 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, METHOD FOR PRODUCING THE ADHESIVE OPTICAL FILM, IMAGE DISPLAY, ADHESIVE COATING LIQUID, AND METHOD FOR PRODUCING THE ADHESIVE COATING LIQUID - A pressure-sensitive adhesive optical film of the invention includes an optical film; and a pressure-sensitive adhesive layer placed on at least one side of the optical film, wherein the pressure-sensitive adhesive layer is a product formed by applying a pressure-sensitive adhesive coating liquid having a dissolved oxygen concentration of 0.02 to 3 mg/L and then drying the pressure-sensitive adhesive coating liquid. The pressure-sensitive adhesive optical film can satisfy heat durability, humidity durability, and high contrast. | 03-15-2012 |
20120213991 | PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY - A pressure-sensitive adhesive layer for an optical film of the invention which is formed by applying an aqueous dispersion pressure-sensitive adhesive include an aqueous dispersion containing a base polymer dispersed in water, and then drying the applied aqueous dispersion pressure-sensitive adhesive, wherein the aqueous dispersion comprises a product obtained by polymerizing a monomer or monomers in water in the presence of a surfactant and a radical polymerization initiator, and the content of the surfactant is from 0.3 to 5 parts by weight based on 100 parts by weight of the monomer or monomers, when the pressure-sensitive adhesive layer is allowed to stand in water at 23° C. for one week and to separate into a water-soluble component and a water-insoluble component, the content of the water-insoluble component in the pressure-sensitive adhesive layer is from 95 to 99% by weight, and the content of the surfactant in the water-soluble component is 50% by weight or less based on the amount of the water-soluble component. The pressure-sensitive adhesive layer for an optical film has high durability so that foaming and peeling can be suppressed even under high temperature or high humidity environment. | 08-23-2012 |
20120251821 | PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, METHOD FOR MANUFACTURING THEREOF, AND IMAGE DISPLAY - A pressure-sensitive adhesive layer for an optical film of the invention, which is formed by applying an aqueous dispersion pressure-sensitive adhesive including an aqueous dispersion containing at least a base polymer dispersed in water, and then drying the applied aqueous dispersion pressure-sensitive adhesive, has a content of residual monomer in the pressure-sensitive adhesive layer is 5 to 100 ppm per 1 g of the solid of the pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer for an optical film has high durability so that foaming and peeling can be suppressed even under high temperature or high humidity environment. | 10-04-2012 |
20120261077 | METHOD FOR SEPARATING AN OPTICAL FILM BONDED TO AN ADHEREND WITH A PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM - There is provided a method for separating an optical film bonded to an adherend with a pressure-sensitive adhesive layer interposed therebetween from the adherend. The pressure-sensitive adhesive layer is formed using an optical pressure-sensitive adhesive. The optical pressure-sensitive adhesive of the invention comprises a base polymer having a functional group (F); and a coupling agent that has a benzyl ester group and is represented by Formula (1): | 10-18-2012 |
20120300299 | PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED POLARIZING FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive layer-attached polarizing film of the invention includes: a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes a polarizer and a transparent protective film provided on only one side of the polarizer, the pressure-sensitive adhesive layer is provided on a side of the polarizer where the transparent protective film is absent, and the pressure-sensitive adhesive layer is made of a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an alkali metal salt (B). The pressure-sensitive adhesive layer-attached polarizing film has a pressure-sensitive adhesive layer with an antistatic function and satisfactory durability and whose optical properties are less likely to be degraded. | 11-29-2012 |
20130052457 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY DEVICE - An aqueous dispersion-type pressure-sensitive adhesive composition for an optical film of the invention includes a emulsion particles of a core-shell structure, wherein the emulsion particles include a (meth)acryl-based copolymer (A) having a glass transition temperature of −55° C. to 0° C. and a (meth)acryl-based copolymer (B) having a glass transition temperature of 0° C. to 180° C., in a single emulsion particle, one of the copolymers (A) and (B) forms a core layer, and another forms a shell layer, at least one of the copolymers (A) and (B) contains a carboxyl group-containing monomer, a difference of the glass transition temperatures between the copolymers (A) and (B) is 50° C. or more, and a ratio (A)/(B) (by weight) is in the range of 50/50 to 90/10. The above composition can form a pressure-sensitive adhesive layer which is prevented from peeling in a moist environment and also prevented from peeling over time after taken out of a high-temperature moist environment. | 02-28-2013 |
20130093438 | PRESSURE-SENSITIVE ADHESIVE LAYER FOR TRANSPARENT CONDUCTIVE FILM, TRANSPARENT CONDUCTIVE FILM WITH PRESSURE-SENSITIVE ADHESIVE LAYER, TRANSPARENT CONDUCTIVE LAMINATE, AND TOUCH PANEL - A pressure-sensitive adhesive layer of the invention for transparent conductive film has a thickness of 10 μm to 100 μm, and is made from a water-dispersible acryl-based pressure-sensitive adhesive that is an aqueous dispersion containing a water-dispersible (meth)acryl-based polymer and a water-soluble basic component, wherein the water-dispersible (meth)acryl-based polymer comprises 100 parts by weight of an alkyl(meth)acrylate with an alkyl group of 4 to 14 carbon atoms, as a monomer unit, and 1 to 8 parts by weight of a carboxyl group-containing monomer as a copolymerized monomer unit, and the pressure-sensitive adhesive layer contains 200 ng to 500,000 ng of the water-soluble basic component per 1 cm | 04-18-2013 |
20130094083 | PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, AND IMAGE DISPLAY - The pressure-sensitive adhesive layer for an optical film having good heat and moisture durability is formed by a process of applying an aqueous dispersion-type pressure-sensitive adhesive containing an emulsion of a (meth)acryl-based polymer obtained by subjecting a monomer mixture containing at least one of an alkyl (meth)acrylate (a1) with an alkyl group of 1 to 3 carbon atoms and an alkoxysilyl group-containing monomer (a2), and an alkyl (meth)acrylate (b) with an alkyl group of 4 to 14 carbon atoms to emulsion polymerization in water in the presence of a radical polymerization initiator and a reactive surfactant having a radically-polymerizable functional group; and then drying the emulsion, wherein a content of the reactive surfactant is 0.3 to 3 parts by weight based on 100 parts by weight of the monomer mixture, and has a saturated water absorption of 1.2 to 3.2% by weight at 50° C. and 90% R.H. | 04-18-2013 |
20130160938 | ADHESIVE OPTICAL FILM, MANUFACTURING METHOD FOR THE SAME AND IMAGE DISPLAY DEVICE USING THE SAME - A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer. | 06-27-2013 |
20130171371 | PROCESS FOR PRODUCTION OF ADHESIVE OPTICAL FILM - A method for production of an adhesive optical film comprises the step of forming an anchor layer by applying an anchor layer-forming coating liquid to the optical film to form a coating with a thickness of 20 μm or less before drying, wherein the anchor layer-forming coating liquid contains a mixed solvent composed mainly of water and an alcohol, and a binder resin, and by drying the coating under drying conditions satisfying both of the following requirements:
| 07-04-2013 |
20130182324 | ADHESIVE LAYER FOR OPTICAL FILM, METHOD FOR PRODUCING SAME, OPTICAL FILM WITH ADHESIVE LAYER, AND IMAGE DISPLAY DEVICE - The pressure-sensitive adhesive layer for an optical film of the invention is formed by a process comprising applying a water-dispersible pressure-sensitive adhesive containing emulsion particles comprising polymer particles emulsified with a surfactant and then drying the applied water-dispersible pressure-sensitive adhesive, and is in such a state that the polymer particles have a number average particle size (a) of 10 nm to 100 nm and that the ratio (a/b) of the number average particle size (a) to the average distance (b) between adjacent polymer particles is from 80/20 to 99.9/0.1, when the pressure-sensitive adhesive layer being observed with a transmission electron microscope. The pressure-sensitive adhesive layer makes it possible to reduce depolarization even when it is used on a high-contrast polarizing plate or any other component having a high degree of polarization. | 07-18-2013 |
20130216805 | ADHESIVE OPTICAL FILM, MANUFACTURING METHOD FOR THE SAME AND IMAGE DISPLAY DEVICE USING THE SAME - A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer. | 08-22-2013 |
20130248118 | ADHESIVE LAYER FOR OPTICAL FILM, OPTICAL FILM HAVING ADHESIVE LAYER, IMAGE DISPLAY DEVICE, AND DETACHMENT METHOD FOR OPTICAL FILM - A pressure-sensitive adhesive layer for an optical film made from an aqueous dispersion-type pressure-sensitive adhesive composition, wherein the aqueous dispersion-type pressure-sensitive adhesive composition is an aqueous dispersion comprising a water-dispersible (meth)acryl-based copolymer (A) having a glass transition temperature from −55° C. to less than 0° C.; and a water-soluble or water-dispersible component (B) having a glass transition temperature of 0° C. or more, a mixture ratio (A)/(B) is in the range of 50-97/3-50, the component (B) forms domains with maximum lengths between 1 nm and 200 nm in a resin component made of the (meth)acryl-based copolymer (A), and the pressure-sensitive adhesive layer has a haze value (H20) of 1% or less when having a thickness of 20 μm. The pressure-sensitive adhesive layer for an optical film, which is made from an aqueous dispersion-type pressure-sensitive adhesive composition has good reworkability or recyclability, and has a sufficient level of durability. | 09-26-2013 |
20130280529 | ADHESIVE COMPOSITION FOR OPTICAL FILMS, ADHESIVE LAYER FOR OPTICAL FILMS, PRESSURE-SENSITIVE ADHESIVE LAYER-CARRYING OPTICAL FILM, AND IMAGE DISPLAY DEVICE - A pressure-sensitive adhesive composition for use on an optical film, includes a (meth)acryl-based polymer obtained by copolymerization of 30 to 98.9% by weight of an alkyl(meth)acrylate, 1 to 50% by weight of an aromatic ring-containing polymerizable monomer, and 0.1 to 20% by weight of a hydroxyl group-containing monomer, and a solvent. The (meth)acryl-based polymer is free of any carboxyl group-containing monomer unit and has a weight average molecular weight of 300,000 to 1,200,000 as measured by gel permeation chromatography. The content of a solid including the (meth)acryl-based polymer is 20% by weight or more, and the content of the solvent is 80% by weight or less. | 10-24-2013 |
20130288048 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR USE ON AN OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE LAYER-CARRYING OPTICAL FILM, AND IMAGE DISPLAY DEVICE - A pressure-sensitive adhesive composition for use on an optical film, includes a (meth)acryl-based polymer obtained by copolymerization of 30 to 98.9% by weight of an alkyl(meth)acrylate, 1 to 50% by weight of an aromatic ring-containing polymerizable monomer, 0.1 to 20% by weight of a hydroxyl group-containing monomer, and 0 to 4% by weight of a carboxyl group-containing monomer, and a solvent. The (meth)acryl-based polymer has a weight average molecular weight of 300,000 to 1,200,000 as measured by gel permeation chromatography. The content of a solid including the (meth)acryl-based polymer is 20% by weight or more, and the content of the solvent is 80% by weight or less. | 10-31-2013 |
20130293949 | ADHESIVE COMPOSITION CURABLE WITH ACTIVE ENERGY RAY, POLARIZING PLATE, OPTICAL FILM, AND IMAGE DISPLAY DEVICE - An adhesive composition curable with an active energy ray includes radical polymerizable compounds (A), (B) and (C) as curable components. The composition includes the radical polymerizable compound (A) having an SP value of 29.0 to 32.0 (kJ/m | 11-07-2013 |
20140004341 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL MEMBERS, ADHESIVE OPTICAL MEMBER AND IMAGE DISPLAY DEVICE | 01-02-2014 |
20140085722 | POLARIZING FILM WITH ADHESIVE LAYER AND IMAGE DISPLAY APPARATUS - A pressure-sensitive adhesive layer-attached polarizing film of the present invention includes a polarizing film and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film includes a polarizer with a thickness of 10 μm or less and a transparent protective film or films provided on one or both sides of the polarizer, and the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer (A) and an ionic compound (B). The pressure-sensitive adhesive layer-attached polarizing film has an antistatic function and exhibits durability. | 03-27-2014 |
20140130955 | ADHESIVE OPTICAL FILM, MANUFACTURING METHOD FOR THE SAME AND IMAGE DISPLAY DEVICE USING THE SAME - A pressure-sensitive adhesive optical film of the invention comprises an optical film and a pressure-sensitive adhesive layer provided on the optical film, wherein the pressure-sensitive adhesive layer has a thickness (μm) standard deviation of 0.12 μm or less. The pressure-sensitive adhesive optical film makes it possible to reduce the problem of visible unevenness caused by a pressure-sensitive adhesive layer. | 05-15-2014 |
20140308514 | ADHESIVE AGENT COMPOSITION, ADHESIVE AGENT LAYER, POLARIZING PLATE PROVIDED WITH ADHESIVE AGENT LAYER, AND IMAGE FORMATION DEVICE - A pressure-sensitive adhesive composition, comprising:
| 10-16-2014 |
20140322457 | ADHESIVE COMPOSITION, ADHESIVE LAYER, POLARIZING FILM HAVING ADHESIVE AGENT LAYER, AND IMAGE FORMING DEVICE - A pressure-sensitive adhesive composition, comprising a (meth)acryl-based polymer (A); and an ionic compound (B) comprising an anion component and a cation component, wherein the (meth)acryl-based polymer (A) is an aromatic ring-containing (meth)acryl-based polymer (A) containing a monomer unit derived from an aromatic ring-containing alkyl (meth)acrylate. It is preferred that the anion component is at least one of anion components represented by the following formula (1): (C | 10-30-2014 |
20140342151 | ADHESIVE COMPOSITION, ADHESIVE LAYER, POLARIZING FILM HAVING ADHESIVE AGENT LAYER, AND IMAGE FORMING DEVICE - A pressure-sensitive adhesive composition, comprising:
| 11-20-2014 |
20140347727 | OPTICAL FILM WITH ADHESIVE LAYER, AND IMAGE DISPLAY DEVICE - A pressure-sensitive adhesive layer-attached optical film of the present invention comprises an optical film; and a pressure-sensitive adhesive layer and made from an ammonia-containing water-dispersible pressure-sensitive adhesive, wherein the pressure-sensitive adhesive layer has an ammonia content of 10 to 500 μg per 1 g of the pressure-sensitive adhesive layer, and shows a difference of 0 to 500 μg per 1 g of the pressure-sensitive adhesive layer in ammonia content before and after a heat durability test and humidity durability test, and the optical film includes a polarizing film with a degree of polarization of 99.99% or more. The pressure-sensitive adhesive layer-attached optical film has optical properties which are less changeable even in a high-temperature and/or high-humidity environment. | 11-27-2014 |
20150062705 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive optical film of the present invention comprises: an optical film; and a pressure-sensitive adhesive layer placed on at least one side of the optical film, wherein the pressure-sensitive adhesive layer has an equilibrium moisture content ratio (a) of 0.5% by weight or less, the pressure-sensitive adhesive layer shows a displacement amount (b) of 600 μm or less in one hour at 23° C., when a tensile shearing stress of 500 gf is applied to an adhesion area of 10 mm×10 mm having a thickness of 25 μm, and the equilibrium moisture content ratio (a) and the displacement amount (b) satisfy the relation: b<1036.4×e | 03-05-2015 |