| Patent application number | Description | Published |
|---|
| 20080252973 | POLARIZING PLATE, OPTICAL FILM AND IMAGE DISPLAY - A polarizing plate of the present invention comprises a polarizer; an adhesive layer; and a transparent protective film bonded to at least one side of the polarizer with the adhesive layer interposed therebetween, wherein the adhesive layer is formed from an active energy ray curing adhesive containing at least one curable component, and the adhesive layer has a glass transition temperature (Tg) of 60° C. or more, and a thickness of 0.01 μm to 7 μm. The polarizing plate has sufficient durability in a severe environment at high temperature and high humidity. | 10-16-2008 |
| 20080274272 | ANTISTATIC OPTICAL FILM, METHOD FOR MANUFACTURING THE SAME AND IMAGE VIEWING DISPLAY - An antistatic optical film comprising an antistatic layer laminated on at least one side of an optical film, wherein the antistatic layer comprises a water soluble or a water dispersible conductive polymer, has excellent antistatic effect, optical characteristics and appearance. | 11-06-2008 |
| 20080278672 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive optical film of the present invention comprises: an optical film comprising a transparent base film and a discotic liquid crystal layer provided on one side of the transparent base film; an undercoat layer; and a pressure-sensitive adhesive layer provided on the discotic liquid crystal layer with the undercoat layer interposed therebetween, the undercoat layer comprises a polymer and an antioxidant; and the pressure-sensitive adhesive layer comprises a (meth)acrylic polymer (A) comprising 80 to 99.5% by weight of an alkyl (meth)acrylate monomer unit and 0.05 to 3% by weight of a hydroxyl group-containing monomer unit and having a weight average molecular weight of 1,000,000 to 2,500,000; a (meth)acrylic oligomer (B) comprising 80 to 99.9% by weight of an alkyl (meth)acrylate monomer unit and 0.1 to 3% by weight of a carboxyl group-containing monomer unit and having a weight average molecular weight of 3,000 to 8,000; a crosslinking agent (C); and a silane coupling agent (D), and the pressure-sensitive adhesive layer comprises 10 to 40 parts by weight of the (meth)acrylic oligomer (B) based on 100 parts by weight of the (meth)acrylic polymer (A). The pressure-sensitive adhesive optical film has durability and can suppress display unevenness in a peripheral portion of a display screen and window frame unevenness in a state that a backlight is on. | 11-13-2008 |
| 20080280074 | 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 laminated on at least one side of the optical film, wherein the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive containing a (meth)acrylic polymer (A) and a resin component (B) having an aromatic ring structure in its main chain. The pressure-sensitive adhesive optical film has durability and can be prevented from causing display unevenness in a peripheral portion of a display screen. | 11-13-2008 |
| 20090022988 | PRESSURE SENSITIVE ADHESIVES FOR OPTICAL FILM, MANUFACTURING METHODS FOR PRESSURE SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE SENSITIVE ADHESIVE LAYERS FOR OPTICAL FILM, PRESSURE SENSITIVE ADHESION TYPE OPTICAL FILMS AND IMAGE DISPLAYS - Provided herein is a pressure sensitive adhesive for an optical film comprising: 100 parts by weight of a (meth)acrylic-based polymer (A) including an alkyl (meth)acrylate (a1) and a (meth)acrylic-based monomer containing a hydroxyl group (a2), as a copolymerizable component, in content in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the alkyl (meth)acrylate (a1); 0.02 to 2 parts by weight of a peroxide (B); and 0.001 to 2 parts by weight of an isocyanate-based compound (C), the contents of the peroxide (B) and the isocyanate-based compound (C) being values relative to 100 parts by weight of the (meth)acrylic-based polymer (A). | 01-22-2009 |
| 20090023869 | PRESSURE SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL MEMBERS, PRESSURE SENSITIVE ADHESIVE LAYER FOR OPTICAL MEMBERS, PRESSURE SENSITIVE ADHESIVE OPTICAL MEMBER AND IMAGE DISPLAY - An object of the present invention is to provide a pressure sensitive adhesive composition for an optical member, which is excellent in coating property because of low viscosity, can reduce an amount of an organic solvent used, and can form a pressure sensitive adhesive layer excellent in durability and having high surface uniformity. The present invention relates to a pressure sensitive adhesive composition for an optical member, which comprises a (meth)acrylic polymer, a C6 to C9 hydrocarbon-based solvent (A), and a high-boiling highly solubilizing solvent (B) having a boiling point higher than that of the above hydrocarbon-based solvent and having a higher ability to solubilize the (meth)acrylic polymer than that of the above hydrocarbon-based solvent, wherein a content of the hydrocarbon-based solvent (A) is 20 to 60 wt % based on the total amount of the solvents, and a ratio of the content (wt %) of the hydrocarbon-based solvent (A) to the content (wt %) of the high-boiling highly solubilizing solvent (B) (high-boiling highly solubilizing solvent (B)/hydrocarbon-based solvent (A)) is 0.05 to 4. | 01-22-2009 |
| 20090027596 | POLARIZING PLATE LAMINATED WITH A RETARDATION LAYER, LIQUID CRYSTAL PANEL, AND LIQUID CRYSTAL DISPLAY APPARATUS - There are provided a polarizing plate laminated with a retardation layer, a liquid crystal panel and a liquid crystal display apparatus each being excellent in screen contrast and being capable of suppressing display unevenness occurring in high-temperature environment. The polarizing plate laminated with a retardation layer includes a pressure-sensitive adhesive layer, a retardation layer including a resin layer and an inclined alignment layer and a polarizer, in this order. | 01-29-2009 |
| 20090042004 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, PROCESS FOR PRODUCING THE PRESSURE-SENSITIVE ADHESIVE LAYER, AND OPTICAL MEMBER WITH PRESSURE-SENSITIVE ADHESIVE - This invention provides a pressure-sensitive adhesive composition that exhibits excellent pressure-sensitive adhesive properties after crosslinking treatment, does not cause lifting or lifting upon heat treatment or treatment under high-humidity conditions particularly even in the case of a pressure-sensitive adhesive layer having a reduced layer thickness, and has excellent durability. A pressure-sensitive adhesive layer formed using the pressure-sensitive adhesive composition, and a process for producing the same are also provided. Further, an optical member with pressure-sensitive adhesive comprising the pressure-sensitive adhesive layer and an image display using the same are provided. The pressure-sensitive adhesive composition is characterized by comprising 100 parts by weight of an (meth)acrylic polymer and 0.02 to 2 parts by weight of a peroxide, and 0.02 to 2 parts by weight of an isocyanate crosslinking agent, the (meth)acrylic polymer comprising as monomer units 50 to 98% by weight of an (meth)acrylic monomer represented by general formula CH | 02-12-2009 |
| 20090078371 | OPTICAL PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM, IMAGE DISPLAY, AND METHOD FOR SEPARATING PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM - An 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): | 03-26-2009 |
| 20090087650 | ADHESIVE OPTICAL FILM, MULTILAYER OPTICAL FILM AND IMAGE DISPLAY - To provide a pressure-sensitive adhesive optical film that can satisfy durability even when a thin pressure-sensitive adhesive layer is formed. A pressure-sensitive adhesive optical film comprising an optical film and a pressure-sensitive adhesive layer on at least one side of the optical film, wherein the pressure-sensitive adhesive layer is formed by a pressure-sensitive adhesive, comprising: a (meth)acrylic polymer having a weight average molecular weight of 1,500,000 to 2,800,000; containing, as a monomer component, 3 to 10% by weight of a heterocyclic ring-containing acrylic monomer; 0.5 to 5% by weight of a carboxyl group-containing monomer; 0.05 to 2% by weight of a hydroxyl group-containing monomer; and 83 to 96.45% by weight of an alkyl(meth)acrylate monomer, and a crosslinking agent. | 04-02-2009 |
| 20090104445 | OPTICAL PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE ATTACHED OPTICAL FILM, AND IMAGE DISPLAY - An object of the invention is to provide an optical pressure-sensitive adhesive that is for use in pressure-sensitive adhesive attached optical films and so on, includes an acrylic copolymer and is less likely to cause display unevenness in the peripheral portion of a display screen. An optical pressure-sensitive adhesive, comprising: an acrylic copolymer containing alkyl (meth)acrylate (a1) and N-(2-hydroxyethyl)(meth)acrylamide (a2) as a monomer unit. | 04-23-2009 |
| 20090123718 | 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 laminated on at least one side of the optical film with an anchor layer interposed therebetween, wherein the anchor layer has a thickness of 5 to 300 nm, the pressure-sensitive adhesive layer has a thickness of 5 to 50 μm, at least one of the anchor layer and the pressure-sensitive adhesive layer is made from a ammonia-containing water-dispersible material, the layer made from the ammonia-containing water-dispersible material contains ammonia in an amount of 10 ng or more per 1 cm | 05-14-2009 |
| 20090231519 | LIQUID CRYSTAL DISPLAY PANEL AND LIQUID CRYSTAL DISPLAY - A liquid crystal display panel includes a liquid crystal cell, a first polarizing plate placed on one side of the liquid crystal cell, a second polarizing plate placed on the other side of the liquid crystal cell, a retardation film placed between the liquid crystal cell and the first polarizing plate, and a pressure-sensitive adhesive layer placed between the liquid crystal cell and the retardation film, wherein the first and second polarizing plates have absorption axes whose directions are substantially orthogonal to each other, the retardation film is a norbornene resin-containing stretched film and has a refractive index ellipsoid satisfying the relation nx≧nz>ny, and the pressure-sensitive adhesive layer includes a pressure-sensitive adhesive that may be produced by crosslinking a composition including a (meth)acrylate (co)polymer and a crosslinking agent including a peroxide as a main component. When the liquid crystal display panel is viewed from oblique directions, leakage of light and changes in color are small, and when the liquid crystal cell is recycled, the laminated film has a high level of easy peelability. | 09-17-2009 |
| 20090233102 | PRESSURE SENSITIVE ADHESIVE FOR OPTICAL FILM, PRESSURE SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, METHOD FOR MANUFACTURING THE SAME, PRESSURE SENSITIVE ADHESION TYPE OPTICAL FILM, AND IMAGE DISPLAY - The invention relates to a pressure-sensitive adhesive for an optical film, comprising 0.02 to 2 parts by weight of a peroxide (B) and 0.01 to 5 parts by weight of an isocyanate-based compound (C) contained in 100 parts by weight of a (meth)acrylic polymer (A) consisting primarily of an alkyl(meth)acrylate and not containing a functional group reactive with an isocyanate group. By using the invented pressure-sensitive adhesive for an optical film, there can be obtained a pressure sensitive adhesion type optical film that can suppress warping and light leakage caused by a stress accompanying a dimensional change of members such as an optical film, has high durability, is excellent in handling ability in the manufacturing process and is excellent in quality. | 09-17-2009 |
| 20090258224 | PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND METHOD FOR PRODUCING SAME - Disclosed is to provide a pressure-sensitive adhesive optical film that has excellent durability wherein deterioration of an image display region is suppressed even under severe conditions such as heating caused by lighting of a backlight and to provide a method for producing the same. Disclosed is also to provide an image display using such a pressure-sensitive adhesive optical film. A pressure-sensitive adhesive optical film, comprising: an optical film; and a pressure-sensitive adhesive layer arranged on one or both sides of the optical film, wherein the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive composition comprising 100 parts by weight of a (meth)acrylic polymer which contains, as a monomer unit, at least 50% by weight of an alkyl (meth)acrylate ester having an alkyl group with 4 or more carbon atoms, and 0.02 to 2 parts by weight of a peroxide, and the pressure-sensitive adhesive layer has a thickness of 20 μm or more. | 10-15-2009 |
| 20090279030 | LAMINATED FILM - A laminated film includes a polarizing plate, a retardation film, and a first pressure-sensitive adhesive layer provided in this order, wherein the polarizing plate includes a polarizer, a first protective layer placed on a side of the polarizer where the retardation film is provided, and a second protective layer placed on another side of the polarizer which is opposite to the side where the retardation film is provided, the retardation film is a stretched film comprising a norbornene resin,
| 11-12-2009 |
| 20090322994 | LIQUID CRYSTAL PANEL AND LIQUID CRYSTAL DISPLAY APPARATUS - A liquid crystal panel has a first optical film ( | 12-31-2009 |
| 20100143634 | PRESSURE-SENSITIVE ADHESIVE LAYER-CARRYING TRANSPARENT CONDUCTIVE FILM, METHOD FOR PRODUCTION THEREOF, TRANSPARENT CONDUCTIVE LAMINATE, AND TOUCH PANEL - An object of the invention is to provide a pressure-sensitive adhesive layer-carrying transparent conductive film that can reduce the problem with the visibility due to the pressure-sensitive adhesive layer, when it is used in a touch panel or the like, a method for production thereof, and a transparent conductive laminate. The pressure-sensitive adhesive layer-carrying transparent conductive film of the invention is a pressure-sensitive adhesive layer-carrying transparent conductive film, comprising: a first transparent plastic film substrate; a transparent conductive thin film provided on one side of the first transparent plastic film substrate; and a pressure-sensitive adhesive layer provided on another side of the first transparent plastic film substrate, wherein the pressure-sensitive adhesive layer used in the pressure-sensitive adhesive layer-carrying transparent conductive film has a surface with a surface roughness Ra of 2 to 130 nm on the side to which the first transparent plastic film substrate is bonded. | 06-10-2010 |
| 20100283946 | POLARIZING PLATE, AND IMAGE DISPLAY DEVICE HAVING POLARIZING PLATE - The present invention provides a polarizing plate excellent in adherence (particularly, under high-temperature and high-humidity conditions) between a polarizer and a protective film. The polarizing plate of the present invention includes: a polarizer; an adhesive layer; an easy-adhesion layer formed of an easy-adhesive composition containing a urethane resin having a carboxyl group and a cross-linking agent; and a protective film containing a (meth) acrylic resin. | 11-11-2010 |
| 20110123799 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE LAYER FOR OPTICAL FILM, PRESSURE-SENSITIVE ADHESIVE OPTICAL FILM AND IMAGE DISPLAY - A pressure-sensitive adhesive composition for an optical film of the present invention includes a (meth)acrylic polymer(A) that comprises, as monomer units, 67 to 96.99% by weight of alkyl (meth)acrylate(a1), 1 to 20% by weight of benzyl (meth)acrylate(a2), 2 to 10% by weight of a carboxyl group-containing monomer(a3) and 0.01 to 3% by weight of a hydroxyl group-containing monomer(a4), has a weight average molecular weight(Mw) of 1,600,000 or more, and satisfy a weight average molecular weight(Mw)/number average molecular weight(Mn) ratio of 1.8 to 10. The pressure-sensitive adhesive composition can satisfy durability that does not cause peeling, separation at the state in which the optical film was attached, and can form a pressure-sensitive adhesive layer capable of improving display non-uniformity caused by a white display leakage at a peripheral portion. | 05-26-2011 |
