Patent application number | Description | Published |
20090068459 | Pressure sensitive adhesive composition, product using the same, and display using the product - Disclosed is a pressure-sensitive adhesive composition which contains an acrylic polymer and a crosslinking agent. The acrylic polymer has a weight-average molecular weight of 40×10 | 03-12-2009 |
20100080991 | PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL MEMBER ADHESION - The present invention provide a pressure-sensitive adhesive sheet for optical member adhesion, which includes at least an acrylic pressure-sensitive adhesive layer, in which the acrylic pressure-sensitive adhesive layer has a storage modulus at 23° C. of from 1.0×10 | 04-01-2010 |
20100209699 | ELECTROCONDUCTIVE PRESSURE-SENSITIVE ADHESIVE TAPE - An electroconductive pressure-sensitive adhesive tape includes a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive and having a thickness of 10 to 30 μm. The pressure-sensitive adhesive contains a spherical and/or spiking electroconductive filler in a content of 14 to 45 parts by weight per 100 parts by weight of the total solids contents of the pressure-sensitive adhesive other than fillers, the electroconductive filler has an aspect ratio of 1.0 to 1.5 and occupies 90 percent by weight or more of the total weight of fillers in the pressure-sensitive adhesive. The electroconductive filler has such particle diameters d | 08-19-2010 |
20100209703 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND PRESSURE-SENSITIVE ADHESIVE TYPE OPTICAL MEMBER - The present invention provides a double-sided pressure-sensitive adhesive sheet, including at least one pressure-sensitive adhesive layer which has a gel fraction of 10 to 70%, has a storage modulus at 23° C. of 1×10 | 08-19-2010 |
20100215955 | PRESSURE-SENSITIVE ADHESIVE SHEET AND PRESSURE-SENSITIVE ADHESIVE FUNCTIONAL FILM - The present invention provides a pressure-sensitive adhesive sheet including at least one pressure-sensitive adhesive layer formed of a pressure-sensitive adhesive composition containing an acrylic polymer (a) in which the total content of acrylic acid and methacrylic acid relative to the entire monomer ingredients constituting the acrylic polymer is 10% by weight or less, in which the total amount of an acrylic acid ion and a methacrylic acid ion extracted from the pressure-sensitive adhesive sheet with pure water under the condition of 100° C. for 45 minutes, as measured in accordance with an ion chromatography, is 20 ng/cm | 08-26-2010 |
20110014410 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE - The present invention provides a pressure-sensitive adhesive tape including a release liner A having a haze value of 5.0% or less. Since the double-sided pressure-sensitive adhesive tape of the invention has the aforementioned construction, it does not inhibit visual inspection of an adherend even in case that the visual inspection of adherend is carried out under a condition of still having the aforementioned release liner. Accordingly, it can be suitably used in the application for adhering optical members, and the like. | 01-20-2011 |
20110112249 | OPTICAL-USE PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical-use pressure-sensitive adhesive sheet, which includes a pressure-sensitive adhesive layer containing a polymer formed of one or more monomer ingredients containing, as an indispensable monomer ingredient, a monomer of which homopolymer has a glass transition temperature of not lower than −10° C., said sheet having a moisture content of at least 0.65% by weight after stored in an environment at 60° C. and 95% RH for 120 hours. The pressure-sensitive adhesive layer is preferably an acrylic pressure-sensitive adhesive layer. | 05-12-2011 |
20120064275 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical pressure-sensitive adhesive sheet having excellent punching processability. The optical pressure-sensitive adhesive sheet includes: a pressure-sensitive adhesive body; and a separator on at least one side of the pressure-sensitive adhesive body, where the separator has a Young's modulus of 2 GPa or more in a machine direction and a transverse direction, a breaking strength of 400 MPa or less in a machine direction and a transverse direction, and a thickness of 70 μm or more and 250 μm or less, and a release force of the separator to the pressure-sensitive adhesive body in a 180° peel test at a tensile speed of 30 m/min is 0.8 N/50 mm or more. | 03-15-2012 |
20120064276 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical pressure-sensitive adhesive sheet having excellent punching processability. The optical pressure-sensitive adhesive sheet includes: a pressure-sensitive adhesive body; and a separator on at least one side of the pressure-sensitive adhesive body, wherein the separator has a Young's modulus of 2 GPa or more in a machine direction and a transverse direction, a breaking strength of 400 MPa or less in a machine direction and a transverse direction, and a thickness of 25 or more and less than 70 μm, and a release force of the separator to the pressure-sensitive adhesive body in a 180° peel test at a tensile speed of 30 m/min is 1.2 N/50 mm or more. | 03-15-2012 |
20120100359 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL FILM AND DISPLAY DEVICE - The present invention provides an optical pressure-sensitive adhesive sheet in which white turbidity is not caused by humidification and durability is excellent as well. The present invention provides an optical pressure-sensitive adhesive sheet, comprising: a pressure-sensitive adhesive layer in which a moisture ratio after storage under an environment of 60° C. and 95% RH for 120 hours is 0.65 wt % or more, and a shear storage elastic modulus at 85° C. which is measured by a dynamic viscoelastic measurement is 5.0×10 | 04-26-2012 |
20120157611 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET, LIQUID CRYSTAL DISPLAY AND INPUT DEVICE COMPRISING THE SAME - The present invention provides an excellent optical pressure-sensitive adhesive sheet having an excellent adhesion property to an optical member. The present invention relates to an optical pressure-sensitive adhesive sheet comprising a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 5 to 10, and an adhesion strength to a glass, which is measured with a peel angle of 180° and a tensile speed of 300 mm/min after 30 min of laminating the optical pressure-sensitive adhesive sheet to the glass, is 3 N/20 mm to 15 N/20 mm. | 06-21-2012 |
20120189835 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical pressure-sensitive adhesive sheet excellent in the productivity, and is reduced in the remaining of an air bubble after an autoclave treatment or the generation of a delayed bubble when laminating the optical pressure-sensitive adhesive sheet to an optical member. The present invention relates to an optical pressure-sensitive adhesive sheet, which comprises an acrylic pressure-sensitive adhesive layer, wherein the acrylic pressure-sensitive adhesive layer is formed by an active energy ray polymerization, a gel fraction of the acrylic pressure-sensitive adhesive layer is 80 wt % or less, and a content of a component having a molecular weight of 50,000 or less in a sol matter of the acrylic pressure-sensitive adhesive layer is 20 wt % or less. | 07-26-2012 |
20120214936 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical pressure-sensitive adhesive sheet which has low relative dielectric constant, does not cause white turbidity by humidification, and is excellent in corrosion resistance. The present invention relates to an optical pressure-sensitive adhesive sheet, comprising: a pressure-sensitive adhesive layer in which a relative dielectric constant at a frequency of 100 kHz is 4 or less, and a moisture ratio after storage under an environment of 60° C. and 95% RH for 120 hours is 0.65 wt % or more. The optical pressure-sensitive adhesive sheet preferably has a total light transmittance of 90% or more and a haze of 3% or less. | 08-23-2012 |
20130005915 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive composition excellent in the anti-foaming release property and high-temperature stress relaxation property, and a pressure-sensitive adhesive layer composed of the pressure-sensitive adhesive composition. The invention relates to a pressure-sensitive adhesive composition including an acrylic polymer which is formed from a monomer component including methyl methacrylate and has a glass transition temperature (Tg) of −40° C. or more, wherein the pressure-sensitive adhesive composition has a shear storage elastic modulus at 85° C. as measured by a dynamic viscoelasticity measurement of from 1×10 | 01-03-2013 |
20130085215 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention realizes a display device or input device having excellent ultraviolet protection property for the touch panel, display element or the like, while retaining optical characteristics, even when a small amount of or no optical film is used. The pressure-sensitive adhesive sheet of the present invention has a total light transmittance of 85% or more, a light transmittance at a wavelength of 380 nm of 5% or less, and a haze of 3% or less. The pressure-sensitive adhesive sheet preferably includes a pressure-sensitive adhesive layer containing an acrylic polymer and a triazine-based ultraviolet absorber. | 04-04-2013 |
20130115450 | PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL MEMBER ADHESION - The present invention provide a pressure-sensitive adhesive sheet for optical member adhesion, which includes at least an acrylic pressure-sensitive adhesive layer, in which the acrylic pressure-sensitive adhesive layer has a storage modulus at 23° C. of from 1.0×10 | 05-09-2013 |
20130123451 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive sheet excellent in anti-white turbidity and anti-foaming release property under a high-temperature and high-humidity environment and corrosion resistance. The invention provides a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which includes an acrylic polymer (A) and has a gel fraction of 70 to 100 wt %, wherein the acrylic polymer (A) is formed from a component including, as an essential monomer component, methyl methacrylate and a hydroxyl group-containing monomer in an amount of 10 to 40 wt % based on a total amount (100 wt %) of the monomer component, the component forming the acrylic polymer (A) substantially does not contain a carboxyl group-containing monomer. | 05-16-2013 |
20130158221 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical pressure-sensitive adhesive sheet which can control the change in capacitance, which cause malfunction, when the optical pressure-sensitive adhesive sheet is applied to an optical member. The present invention provides an optical pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein a relative dielectric constant at a frequency of 1 MHz is 2 to 8, and a dielectric tangent at a frequency of 1 MHz is more than 0 and 0.2 or less. | 06-20-2013 |
20140044961 | PRESSURE-SENSITIVE ADHESIVE, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive capable of forming a pressure-sensitive adhesive layer with high transparency and low sebum-induced swelling rate is provided, which includes a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 40 to 82% by weight of an alkyl(meth)acrylate having an alkyl group of 4 to 18 carbon atoms at the ester end and 18 to 35% by weight of a hydroxyl group-containing monomer. | 02-13-2014 |
Patent application number | Description | Published |
20080281047 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION, AND PRESSURE-SENSITIVE ADHESIVE PRODUCT AND DISPLAY USING THE SAME - The present invention provides a pressure-sensitive adhesive composition comprising an acrylic polymer (a), an acrylic oligomer (b), a silane coupling agent having an amino group, and a cross-linking agent, the acrylic polymer (a) containing, as a main monomer component, at least one of a (meth)acrylic acid alkyl ester containing an alkyl group having a number of carbons of from 4 to 12 and a (meth)acrylic acid alkoxyalkyl ester, and containing 1 to 10 parts by weight of a carboxyl group-containing monomer as a monomer component based on 100 parts by weight of the total monomer components constituting the acrylic polymer (a), the acrylic polymer (a) having a weight-average molecular weight of from 400,000 to 1,500,000; and the acrylic oligomer (b) containing a (meth)acrylic acid ester as a main monomer component, and containing 1 to 10 parts by weight of a carboxyl group-containing monomer as a monomer component based on 100 parts by weight of the total monomer components constituting the acrylic oligomer (b), the acrylic oligomer (b) having a weight-average molecular weight of 3,000 or more but less than 6,000, in which the pressure-sensitive adhesive composition contains 10 to 35 parts by weight of the acrylic oligomer (b) and 0.01 part by weight or more but less than 1.0 part by weight of the silane coupling agent having an amino group, based on 100 parts by weight of the acrylic polymer (a). The pressure-sensitive adhesive composition is excellent in transparency and foaming and separation resistances, does not cause periodical reduction of adhesiveness and dramatically improves adhesion reliability. | 11-13-2008 |
20090229733 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD FOR FIXING PLASTIC FILM - The present invention provides a double-sided pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which has a thickness of 3 to 15 μm and contains a pressure-sensitive adhesive composition containing the following acrylic polymer (a) and acrylic oligomer (b), wherein the acrylic oligomer (b) is contained at a proportion of 10 to 35 parts by weight per 100 parts by weight of the acrylic polymer (a),
| 09-17-2009 |
20100255253 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, PRODUCTION METHOD OF DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, PRESSURE-SENSITIVE ADHESION TYPE OPTICAL FUNCTIONAL FILM AND PRESSURE-SENSITIVE ADHESION TYPE HARD COAT FILM - The present invention provides a double-sided pressure-sensitive adhesive sheet, which includes a pressure-sensitive adhesive layer formed from a pressure-sensitive adhesive composition that contains an acrylic polymer constituted from one or more monomer components containing a (meth) acrylic acid alkyl ester wherein the number of carbons of the alkyl group is from 1 to 12 and/or a (meth)acrylic acid alkoxyalkyl ester, in which the soluble fraction (sol fraction) obtained by ethyl acetate extraction of the pressure-sensitive adhesive layer has a weight average molecular weight of from 50,000 to 500,000, and the pressure-sensitive adhesive layer has a thickness unevenness of the whole surface of 0.030 μm or less. | 10-07-2010 |
20120094037 | PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL USE - Provided is a pressure-sensitive adhesive sheet for optical use which less suffers from a misoperation-causing change in capacitance upon application to an optical member. | 04-19-2012 |
20120328873 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - Provided is an optical pressure-sensitive adhesive sheet having satisfactory colorlessness/transparency, excels in whitening resistance, high-temperature bonding reliability, bump absorptivity, and in workability. The sheet includes a plastic film substrate and, on at least one side thereof, an acrylic pressure-sensitive adhesive layer and has a moisture content of 0.65 percent by weight or more after storage in an environment of 60° C. and 95% RH for 120 hours. The plastic film substrate has a total light transmittance of 88% or more, an internal haze of 1.5% or less, a b* value of −0.5 to 0.5, and a thickness of 12 to 75 μm, the acrylic pressure-sensitive adhesive layer contains an acrylic polymer and has a storage shear modulus at 23° C. of 0.8×10 | 12-27-2012 |
20120329970 | OPTICAL PRESSURE-SENSITIVE ADHESIVE SHEET - Provided is an optical pressure-sensitive adhesive sheet which excels in whitening resistance and high-temperature bonding reliability and exhibits superior bump absorptivity. The optical pressure-sensitive adhesive sheet according to the present invention includes an acrylic pressure-sensitive adhesive layer and has a moisture content of 0.65 percent by weight or more after storage in an environment of 60° C. and 95 percent relative humidity for 120 hours, in which the acrylic pressure-sensitive adhesive layer contains an acrylic polymer and has a storage shear modulus at 23° C. of from 0.8×10 | 12-27-2012 |
20130258570 | CAPACITIVE TOUCH SENSOR LAMINATE FOR DISPLAY PANEL DEVICE - A capacitive touch sensor laminate for use in a display panel device includes: a dielectric central substrate structure made of a transparent resin material and formed to have flat surfaces, respectively, on opposite sides thereof; a at least one-layer structured coat layer made of a transparent material, formed on each of the flat surfaces, and including at least one refractive index adjusting layer for suppressing visibility of an electrode pattern formed by the transparent electrically conductive layer; and a transparent electrically conductive layer formed on and in adjacent relation to the coat layer. The at least one-layer structured coat layers formed on respective ones of the flat surfaces are configured such that thicknesses of corresponding layers therein on respective opposite sides of the dielectric central substrate structure are set to allow the corresponding layers to become mutually symmetrical across the dielectric central substrate structure. | 10-03-2013 |
20130323437 | PRESSURE-SENSITIVE ADHESIVE SHEET FOR OPTICAL USE - Provided is a pressure-sensitive adhesive sheet for optical use which less suffers from a misoperation-causing change in capacitance upon application to an optical member. | 12-05-2013 |
20140036170 | Display Panel Device Having Touch Input Function - A display panel device has a window, a touch panel laminate and a display panel. The touch panel laminate has: a transparent first substrate layer; a first transparent conductive layer laminated to the first substrate layer through a first undercoat layer; a transparent second substrate layer; and a second transparent conductive layer laminated to the second substrate layer through a second undercoat layer. The second conductive layer faces the first conductive layer through at least the first substrate layer and the first undercoat layer. The first conductive layer is closer to the window than the first substrate layer. A polarizing film layer is bonded to the window, and a λ/4 retardation film layer is disposed between the polarizing film layer and the touch panel laminate. The display panel is disposed on a side opposite to the window with respect to the touch panel laminate. | 02-06-2014 |
20140071353 | DISPLAY PANEL DEVICE WITH TOUCH INPUT FUNCTION, OPTICAL UNIT FOR SAID DISPLAY PANEL DEVICE, AND PRODUCTION METHOD FOR SAME - Provided is an optical unit for a display panel device with a capacitive touch input function. In the optical unit, a touch panel laminate comprises: an optically transparent first substrate layer laminated to one surface of a transparent adhesive layer; a first transparent electrically conductive layer laminated, through a first undercoat layer, to a surface of the first substrate layer on a side opposite to the adhesive layer; an optically transparent second substrate layer laminated to the other surface of the adhesive layer; and a second transparent electrically conductive layer laminated, through a second undercoat layer, to a surface of the second substrate layer on a side opposite side to the adhesive layer. | 03-13-2014 |