Abstract: The optical film with a pressure sensitive adhesive comprises an optical film including a polarizing plate, a first pressure sensitive adhesive layer provided on first main surface of the optical film, and a second pressure sensitive adhesive layer provided on second main surface of the optical film. The first pressure sensitive adhesive layer has a thickness of 30 ?m or more. In the first pressure sensitive adhesive layer, a fluidity of a pressure sensitive adhesive at an end surface is lower than a fluidity of the pressure sensitive adhesive at an in-plane central part.

Abstract: A laminate of optical elements comprises a transparent first optical element, a second optical element, and a transparent pressure-sensitive adhesive layer for bonding the first optical element to the second optical element. The pressure-sensitive adhesive layer comprises a base adhesive zone, a transparent refractive index-adjusting zone. The base adhesive zone is made essentially of a transparent base pressure-sensitive adhesive material and formed over a given range from a first principal surface of the pressure-sensitive adhesive layer facing the first optical element, in a thickness direction of the pressure-sensitive adhesive layer. The a transparent, adherent, refractive index-adjusting zone is formed over a given range from a second principal surface of the pressure-sensitive adhesive layer facing the second optical element.

Abstract: A pressure-sensitive adhesive composition, comprising: (A) a (meth)acryl-based polymer; and (B) an ionic compound comprising an anion component and a cation component, wherein the anion component is at least one of an anion component represented by the general formula (1): (CnF2n+1SO2)2N?,??(1) wherein n is an integer of 3 to 10, and an anion component represented by the general formula (2): CF2(CmF2mSO2)2N?,??(2) wherein m is an integer of 2 to 10.

Abstract: A pressure-sensitive adhesive composition for use on an acryl- or cycloolefin-based polarizing film, comprising: a hydroxyl group-containing (meth)acryl-based polymer (A) containing a monomer unit derived from a hydroxyl group-containing monomer; and an ionic compound (B) comprising an anion component and a cation component, wherein the anion component has an organic group having 2 or more carbon atoms.

Abstract: 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 (?m) standard deviation of 0.12 ?m 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.

Abstract: A pressure-sensitive adhesive layer attached polarizing film of invention includes a polarizing film; and a pressure-sensitive adhesive layer provided on the polarizing film, wherein the polarizing film comprises 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 opposite to the side on which the transparent protective film is provided, and the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive composition including a (meth)acryl-based polymer (A), an onium-anion salt (B1), and an alkali metal salt (B2). The pressure-sensitive adhesive layer attached polarizing film has a pressure-sensitive adhesive layer possessing an antistatic function and satisfactory durability even after a humidity test under severe conditions and is less prone to degradation of optical properties even after a humidity test under severe conditions.

Abstract: A pressure-sensitive adhesive composition comprising (A) a (meth)acryl-based polymer, (B1) an ionic compound comprising a cation component and an anion component having an organic group of three or more carbon atoms, and (B2) an ionic compound comprising a cation component and an anion component having an organic group of two or less carbon atoms. The anion component having an organic group of three or more carbon atoms is preferably at least one of anion components represented by formula (1): (CnF2n+1SO2)2N???(1) in formula (1), n is an integer of 3 to 10, formula (2): CF2(CmF2mSO2)2N???(2) in formula (2), m is an integer of 2 to 10, formula (3): ?O3S(CF2)lSO3???(3) in formula (3), l is an integer of 3 to 10, and formula (4): (CpF2p+1SO2)N?(CqF2q+1SO2)??(4) in formula (4), p and q are each an integer of 2 to 10.

Abstract: 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 (?m) standard deviation of 0.12 ?m 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.

Abstract: A pressure-sensitive adhesive layer-bearing polarizing film for a transparent conductive coating, includes an iodine-based polarizing film and a pressure-sensitive adhesive layer placed on at least one side of the polarizing film, wherein the iodine-based polarizing film includes an iodine-based polarizer containing 1 to 14% by weight of iodine and/or iodide ions and having a thickness of 2 to 40 ?m and a transparent protective film provided on at least one side of the polarizer and having a water-vapor permeability of 1,000 g/(m2·24 hours) or less at 60° C. and 90% R.H., and the pressure-sensitive adhesive layer has a saturated water content of 3.5% by weight or less at 60° C. and 90% R.H.

Abstract: 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 ?m 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: (1) the drying temperature T is between 40° C. and 70° C.; and (2) the value (T×H) obtained by multiplying the drying temperature T (° C.) by the drying time H (seconds) satisfies the relation 400?(T×H)?4,000 to remove the mixed solvent.

Abstract: 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.

Abstract: 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 1.0×1013?/? or more, and the pressure-sensitive adhesive layer is formed from a pressure-sensitive adhesive composition including a base polymer and an ionic compound and is provided on the release layer of the separator. The separator-attached pressure-sensitive adhesive layer is capable of inhibiting an oligomer contained in the base film used for the separator from migrating into the pressure-sensitive adhesive layer.

Abstract: 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 a hydroxyl group-containing (meth)acryl-based polymer (A) containing a monomer unit derived from a hydroxyl group-containing monomer, and the anion component has an organic group and three or more carbon atoms. The anion component is preferably at least one of anion components represented by the following formula (1): (CnF2n+1SO2)2N???(1) ?wherein n is an integer of 3 to 10; the following formula (2): CF2(CmF2mSO2)2N???(2) ?wherein m is an integer of 2 to 10; and the following formula (3): ?O3S(CF2)lSO3???(3) ?wherein l is an integer of 3 to 10.

Abstract: 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): (CnF2n+1SO2)2N? (1) wherein n is an integer of 1 to 10; the following formula (2): CF2(CmF2mSO2)2N? (2) wherein m is an integer of 2 to 10; and the following formula (3): ?O3S(CF2)1SO3? (3) wherein 1 is an integer of 3 to 10.

Abstract: A pressure-sensitive adhesive composition, comprising: (A) a (meth)acryl-based polymer; and (B) an ionic compound comprising an anion component and a cation component, wherein the anion component is at least one of an anion component represented by the general formula (1): (CnF2n+1SO2)2N?,??(1) wherein n is an integer of 3 to 10, and an anion component represented by the general formula (2): CF2(CmF2mSO2)2N?,??(2) wherein m is an integer of 2 to 10.

Abstract: 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 ?m 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.

Abstract: A pressure-sensitive adhesive composition comprising (A) a (meth)acryl-based polymer, (B1) an ionic compound comprising a cation component and an anion component having an organic group of three or more carbon atoms, and (B2) an ionic compound comprising a cation component and an anion component having an organic group of two or less carbon atoms. The anion component having an organic group of three or more carbon atoms is preferably at least one of anion components represented by formula (1): (CnF2n+1SO2)2N???(1) in formula (1), n is an integer of 3 to 10, formula (2): CF2(CmF2mSO2)2N???(2) in formula (2), m is an integer of 2 to 10, formula (3): ?O3S(CF2)lSO3???(3) in formula (3), l is an integer of 3 to 10, and formula (4): (CpF2p+1SO2)N?(CqF2q+1SO2)??(4) in formula (4), p and q are each an integer of 2 to 10.

Abstract: 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 (?m) standard deviation of 0.12 ?m 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.

Abstract: Provided is a polarizing plate with a pressure-sensitive adhesive layer which is excellent in reliability of optical properties and durability of pressure-sensitive adhesion. The polarizing plate with a pressure-sensitive adhesive layer comprises a polarizing film and a pressure-sensitive adhesive layer provided directly on at least one surface of the polarizing film. The pressure-sensitive adhesive layer comprises a pressure-sensitive adhesive composition containing a pressure-sensitive adhesive polymer, and an amount of an acid component in a total monomer component constituting the pressure-sensitive adhesive polymer is less than 8 wt %.

Abstract: 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 ?m 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.