Patent application number | Description | Published |
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 |
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 |
20130078407 | METHOD FOR MANUFACTURING OPTICAL FILM-FORMING PRESSURE-SENSITIVE ADHESIVE LAYER, OPTICAL FILM-FORMING PRESSURE-SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE-TYPE OPTICAL FILM, AND IMAGE DISPLAY DEVICE - An object of the present invention is to provide a method for manufacturing an optical film-forming pressure-sensitive adhesive layer, which can reduce the problem with visibility without a reduction in productivity, such as a reduction in coating speed. A method for manufacturing an optical film-forming pressure-sensitive adhesive layer, comprising the steps of: (1) applying, to a release film, an aqueous dispersion-type pressure-sensitive adhesive including an aqueous dispersion containing a (meth)acryl-based polymer in the form of an aqueous dispersion; and (2) drying the applied aqueous dispersion-type pressure-sensitive adhesive, wherein the aqueous dispersion-type pressure-sensitive adhesive has a viscosity of 0.01 Pa·s to 0.1 Pa·s at a shear rate of 4,000 (l/s), the optical film-forming pressure-sensitive adhesive layer formed on the release film has a surface roughness (Ra) of 10 nm to 40 nm, and the optical film-forming pressure-sensitive adhesive layer has a haze of 1% or less. | 03-28-2013 |
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 |
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 |
20140044953 | ADHESIVE LAYER FOR OPTICAL FILM AND METHOD FOR PRODUCING SAME, ADHESIVE OPTICAL FILM AND METHOD FOR PRODUCING SAME, IMAGE DISPLAY DEVICE, AND COATING LIQUID SUPPLY DEVICE - A method for manufacturing a pressure-sensitive adhesive layer for use on an optical film, the method includes a filtration step including filtering a pressure-sensitive adhesive coating liquid under a differential pressure of more than 0 kPa and not more than 150 kPa using a depth type filter having a filtration accuracy of 1 to 20 μm. The pressure-sensitive adhesive coating liquid contains an aqueous dispersion-type pressure-sensitive adhesive; and an application and drying step including applying the filtered pressure-sensitive adhesive coating liquid and then drying the coating liquid. | 02-13-2014 |
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 |
20140272200 | PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED POLARIZING FILM AND IMAGE DISPLAY DEVICE - A pressure-sensitive adhesive layer-attached polarizing film contains a polarizing film containing a polarizer and a transparent protective film provided on at least one side of the polarizer, the polarizing film having a total thickness of 100 μm or less. A pressure-sensitive adhesive layer is provided on the polarizing film and made from a pressure-sensitive adhesive composition containing a (meth)acryl-based polymer and an antioxidant. | 09-18-2014 |
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 |
20140363667 | SEPARATOR-ATTACHED PRESSURE-SENSITIVE ADHESIVE LAYER, METHOD FOR PRODUCING THE SAME AND PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED OPTICAL FILM WITH SEPARATOR - A separator-attached pressure-sensitive adhesive layer of the present invention including a pressure-sensitive adhesive layer on a separator, wherein the separator includes a base film and an oligomer prevention layer, and a release layer provided in this order on the base film, and the release layer has a surface resistance value of 1.0×10 | 12-11-2014 |
20140377550 | PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL APPLICATIONS, PRESSURE-SENSITIVE ADHESIVE LAYER-ATTACHED OPTICAL FILM, AND IMAGE DISPLAY DEVICE - A pressure-sensitive adhesive layer for optical applications of the present invention is made from a pressure-sensitive adhesive for optical applications including a base polymer (A), and the pressure-sensitive adhesive layer for optical applications includes iodine and/or iodide ions (B). The pressure-sensitive adhesive layer for optical applications has an antistatic function and can satisfy a durability. | 12-25-2014 |