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 transparent resin layer (A) having a surface resistance of 1.0×1013?/? or less is placed more on the viewer side than the most viewer side polarizing film (1) in an image display device (B). The transparent resin layer (A) can be made from a transparent pressure-sensitive adhesive or a transparent liquid resin. Without degrading the reliability of the most viewer side polarizing film (1), the transparent resin layer (A) can impart an antistatic function at such a level as not to reduce the sensitivity of a touch panel.

Abstract: The pressure sensitive adhesive sheet has a thickness of D, a water-vapor permeability of X, and a moisture content of Y. XD2 is 2.7×10?6 g/24 h or more and Y/D is 47 m?1 or less. A base polymer of a pressure sensitive adhesive composition that forms the pressure sensitive adhesive sheet is substantially free from an organic acid monomer component as monomer units. The pressure sensitive adhesive sheet is suitably used for bonding a polarizing plate to a transparent member disposed on a viewing-side of an image display device.

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 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.

Abstract: Provided is a laminate including: a pressure-sensitive adhesive layer attached polarizing film including a polarizing film and a pressure-sensitive adhesive layer or layers provided on one or both sides of the polarizing film; and a transparent conductive member including a transparent conductive layer in which the transparent conductive member is bonded to the pressure-sensitive adhesive layer attached polarizing film in such a manner that the pressure-sensitive adhesive layer of the pressure-sensitive adhesive layer attached polarizing film is in contact with the transparent conductive layer of the transparent conductive member, wherein the polarizing film includes a polarizer and an inorganic layer or layers provided on one or both sides of the polarizer, and the pressure-sensitive adhesive layer is provided on at least one side of the inorganic layer of the polarizing film. Even when placed on a transparent conductive layer, the laminate can prevent degradation of the transparent conductive layer.

Abstract: A pressure sensitive adhesive sheet and an optical film with a pressure sensitive adhesive are disclosed. The pressure sensitive adhesive sheet comprises a first pressure sensitive adhesive layer and a first protective sheet releasably attached to one surface of the first pressure sensitive adhesive layer. The first pressure sensitive adhesive layer contains an ultraviolet curable pressure sensitive adhesive. The first protective sheet has a transmittance of 1% or less to an ultraviolet ray with a wavelength of 360 nm.

Abstract: This polarizing film is characterized by comprising an inorganic layer on one or both surfaces of a polarizing element. The polarizing film has barrier properties against steam, and, even when used in the mode of a polarizing film with an adhesive layer, has good adhesion with the adhesive layer.

Abstract: Provided are an acrylic pressure-sensitive adhesive composition including a (meth)acryl-based polymer and a phosphonic acid compound of formula (1): wherein R is a hydrogen atom or a hydrocarbon residue having 1 to 18 carbon atoms which may have an oxygen atom, or a salt thereof, the composition containing 0.

Abstract: 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.

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: The optical film with pressure sensitive adhesive comprises an optical film and a front-side pressure sensitive adhesive sheet. The front-side pressure sensitive adhesive sheet is a laminated pressure sensitive adhesive sheet and includes a first pressure sensitive adhesive layer disposed in contact with the optical film, and a second pressure sensitive adhesive layer disposed at the furthest from the optical film. The first pressure sensitive adhesive layer has a storage elastic modulus of 9×103 Pa or less at 150° C., and a ratio G?20/G?150 of 20 or more, where G?20 is a storage elastic modulus at 20° C. and G?150 is a storage elastic modulus at 150° C. The second pressure sensitive adhesive layer has a storage elastic modulus of 4×105 Pa or less at 20° C., and a storage elastic modulus of 1×104 Pa or more at 150° C.

Abstract: A double-sided pressure-sensitive-adhesive-layer-attached polarizing film which is good in yield ratio, and satisfies step-absorbing capability provided that the film is a double-sided pressure-sensitive-adhesive-layer-attached polarizing film having a pressure-sensitive adhesive layer on each of the two surfaces of a polarizing film which is provided nearest to a viewer-side of an image display device among at least one polarizing film used in the device, and having the structure and properties as described.

Abstract: 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.

Abstract: 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.

Abstract: A pressure-sensitive-adhesive-layer-attached polarizing film, comprising: a polarizing film which is provided nearest to a viewer-side of an image display device among at least one polarizing film used in the device, a pressure-sensitive adhesive layer A arranged at a viewer-side of the polarizing film, and a pressure-sensitive adhesive layer B arranged at a side of the polarizing film that is opposite to the viewer-side of the polarizing film; wherein the pressure-sensitive adhesive layer A is a multiple pressure-sensitive adhesive layer having at least a first pressure-sensitive adhesive layer (a) and a second pressure-sensitive adhesive layer (b) in an order of the recited layers from the outermost surface side of the pressure-sensitive adhesive layer A.

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.

Abstract: Provided are a separator-attached adhesive layer structure which comprises a separator having moderate light peelability with respect to an adhesive layer and exhibits excellent processability and durability, and a production method therefor. The production method comprises: a first step of forming a layer of an adhesive composition containing a (meth)acryl-based polymer, a peroxide and a phenolic antioxidant, on a release treatment surface of a separator subjected to a release treatment; and a second step of, after completion of the first step, heating the adhesive composition to cause cross-linking therein so as to be formed as an adhesive layer.

Abstract: A pressure-sensitive adhesive sheet comprises a support and a transparent pressure-sensitive adhesive layer on the support. The pressure-sensitive adhesive layer comprises a base adhesive zone 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 in a thickness direction of the pressure-sensitive adhesive layer, and a transparent, adherent, refractive index-adjusting zone formed over a given range from a second principal surface of the pressure-sensitive adhesive layer in the thickness direction, and wherein the refractive index-adjusting zone has a refractive index greater than a refractive index of the base pressure-sensitive adhesive material.

Abstract: The optical film with a pressure sensitive adhesive on both sides includes a first pressure sensitive adhesive layer having a thickness of 3 ?m to 30 ?m on first main surface of an optical film, and a second pressure sensitive adhesive layer having a thickness of 50 ?m or more on second main surface of the optical film. A first protective sheet and a second protective sheet are releasably attached on the first pressure sensitive adhesive layer and the second pressure sensitive adhesive layer, respectively. The residual stress of the second pressure sensitive adhesive layer S2 (N/cm2), the thickness of the first protective sheet Y (?m); and the thickness of the second protective sheet Z (?m) satisfy the following relationship: 20?Y?80; 45?Z; and Y+0.17 Z+10.6 S2?63.