Patent application number | Description | Published |
20100124627 | DOUBLE-COATED PRESSURE SENSITIVE ADHESIVE SHEET FOR FIXING HARD DISK DRIVE COMPONENT AND HARD DISK DRIVE - Disclosed is a double-coated pressure-sensitive adhesive sheet adopted to fix a hard disk drive component, which includes a pressure-sensitive adhesive unit including a plastic film base having a thickness of 20 μm or less and pressure-sensitive adhesive layers arranged on or above both sides of the plastic film base; and non-silicone release liners arranged on both surfaces of the pressure-sensitive adhesive unit. The pressure-sensitive adhesive unit has a thickness of 60 μm or less, and the double-coated pressure-sensitive adhesive sheet shows an outgassing of 1 μg/cm | 05-20-2010 |
20100183872 | Double-coated pressure sensitive adhesive sheet for fixing flexible printed circuit board - Disclosed is a double-coated pressure-sensitive adhesive sheet for fixing a flexible printed circuit board, which includes at least a pressure-sensitive adhesive unit including a plastic base film having a thickness of 13 μm or less, and pressure-sensitive adhesive layers on both sides of the plastic base film. The pressure-sensitive adhesive layers are formed from an acrylic polymer containing, as essential monomer components, a polar-group-containing monomer and an alkyl (meth)acrylate whose alkyl moiety being a linear or branched-chain alkyl group having 2 to 14 carbon atoms. The pressure-sensitive adhesive unit has a thickness of 60 μm or less, the double-coated pressure-sensitive adhesive sheet shows an outgassing of 1 μg/cm | 07-22-2010 |
20100209649 | Double-coated pressure sensitive adhesive sheet - Disclosed is a double-coated pressure-sensitive adhesive sheet which includes at least a pressure-sensitive adhesive unit including a plastic base film and, present on or above both surfaces thereof, pressure-sensitive adhesive layers; and non-silicone release liners present on both surfaces of the pressure-sensitive adhesive unit. The pressure-sensitive adhesive layers are each formed from an acrylic polymer containing, as essential monomer components, an alkyl (meth)acrylate whose alkyl moiety being a linear or branched-chain alkyl group having 2 to 14 carbon atoms and a polar-group-containing monomer. The pressure-sensitive adhesive unit has a thickness of 60 to 160 μm, and each of the two pressure-sensitive adhesive layers of the pressure-sensitive adhesive unit has a thickness of 20 μm or more. The adhesive sheet excels in processability and fittability around bumps and is usable for fixing a flexible printed circuit board or for fixing a hard disk drive component. | 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 |
20100317792 | PRESSURE-SENSITIVE ADHESIVE TAPE FOR OPTICAL MEMBER - The present invention provides a pressure-sensitive adhesive tape for optical member, which has a toluene emission amount of at most 10 μg/g and a formaldehyde emission amount of at most 3 μg/g. The pressure-sensitive adhesive tape may include an acrylic pressure-sensitive adhesive layer. The pressure-sensitive adhesive tape of the invention is favorable for use for in-vehicle installation, and for use for members near to users such as lenses, panels, etc. | 12-16-2010 |
20110061923 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE AND WIRING CIRCUIT BOARD - A double-sided pressure-sensitive adhesive tape includes a nonwoven fabric substrate and pressure-sensitive adhesive layers present on both sides of the substrate, in which the nonwoven fabric substrate contains at least Manila hemp, has a thickness of 18 μm or less, and has a tensile strength in a machine direction of 4 N/15 mm or more. The double-sided pressure-sensitive adhesive tape is thin and is effective for the reduction in size and thickness of products to be fixed through the tape. The tape has a high strength in the machine direction and does not break during production and processing processes. In addition, the tape has a nonwoven fabric substrate and thereby excels also in punching quality. The tape is therefore particularly useful as a double-sided pressure-sensitive adhesive tape for fixing a wiring circuit board. | 03-17-2011 |
20110111220 | OPTICAL-USE PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical-use pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer having, as measured through dynamic viscoelastometry, a storage elastic modulus at 80° C. of at least 2.0×10 | 05-12-2011 |
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 |
20110318573 | ELECTROCONDUCTIVE PRESSURE-SENSITIVE ADHESIVE TAPE - The present invention has an object to provide an electroconductive pressure-sensitive adhesive tape that achieves excellent tackiness and high electrical conductivity even when it is used in a finer shape (in particular, a narrow shape) and that has a small change in resistance value over time and achieves stable electrical conductivity even when it is used for a long time or in a harsh environment. | 12-29-2011 |
20120009399 | Double-sided pressure-sensitive adhesive sheet for fixing flexible printed circuit board and method for manufacturing the same - Disclosed is a double-sided pressure-sensitive adhesive sheet for fixing a flexible printed circuit board, which has silicone release liners, but is less polluting and excels in workability. The double-sided pressure-sensitive adhesive sheet for fixing a flexible printed circuit board includes at least a pressure-sensitive adhesive unit including a substrate and pressure-sensitive adhesive layers present on or above both sides of the substrate; and silicone release liners present on or above both surfaces of the pressure-sensitive adhesive unit, in which the pressure-sensitive adhesive layers each include an acrylic polymer based on, as an essential monomer component, an alkyl (meth)acrylate whose alkyl moiety being a linear or branched-chain alkyl group having 1 to 14 carbon atoms, the pressure-sensitive adhesive unit has a thickness of 60 μm or less, and the adhesive sheet evolves siloxane gas, if any, in an amount of 1 ng/cm | 01-12-2012 |
20120111622 | Double-Sided Pressure-Sensitive Adhesive Tape or Sheet For Use In Wiring Circuit Board And Wiring Circuit Board Having The Double-Sided Pressure-Sensitive Ahesive Tape - The present invention relates to a double-sided pressure-sensitive adhesive tape or sheet for use in a wiring circuit board, which includes a pressure-sensitive adhesive layer formed of a pressure-sensitive adhesive composition comprising an acrylic polymer and a tackifier resin containing a phenolic hydroxyl group; and a release liner comprising a releasing treatment layer formed of a silicone release agent. The double-sided pressure-sensitive adhesive tape or sheet of the invention has a good adhesiveness and, even after a high-temperature step, it is capable of exerting an excellent anti-repulsion property. Further, since the release liner can be easily peeled off even after the high-temperature step, the workability is excellent and the productivity is improved. | 05-10-2012 |
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 |
20120270002 | PRESSURE-SENSITIVE ADHESIVE TAPE FOR FLEXIBLE PRINTED CIRCUIT - The present invention provides a pressure-sensitive adhesive tape for a flexible printed circuit, from which a release liner can be released without being torn off even after being subjected to a high temperature process such as a solder reflow process. The pressure-sensitive adhesive tape of the present invention includes: a pressure-sensitive adhesive layer; and a release liner on at least one surface of the pressure-sensitive adhesive layer, wherein a tensile strength of the release liner in a machine direction is 50 MPa to 150 MPa, and a tensile strength of the release liner in a machine direction after heating at 280° C. for 5 min is 20 MPa to 120 MPa. | 10-25-2012 |
20120325518 | CONDUCTIVE THERMOSETTING ADHESIVE TAPE - Disclosed is a conductive adhesive tape which can exhibit extremely stable electroconductivity upon use over a long duration and/or use under severe environmental conditions even when applied in a small area. The conductive thermosetting adhesive tape includes a metallic foil; and a thermosetting adhesive layer on one side of the metallic foil. The thermosetting adhesive layer has a bond strength before curing of 2 N/20 mm or more and a bond strength after curing of 10 N/20 mm or more. The conductive thermosetting adhesive tape is preferably one including the metallic foil; the thermosetting adhesive layer on one side of the metallic foil; and a terminal exposed from the surface of the thermosetting adhesive layer, in which the conductive thermosetting adhesive tape has a total area of the terminal present per 30 mm | 12-27-2012 |
20120328864 | OPTICAL DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides an optical double-sided pressure-sensitive adhesive sheet excellent in step absorbability and anti-foaming release property. The invention relates to en optical double-sided pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer which contains an acrylic polymer A and an acrylic polymer B having a weight average molecular weight of from 1,000 to 30,000, and has a residual stress after 180 seconds of 3.0 N/cm | 12-27-2012 |
20130005928 | OPTICAL DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, OPTICAL MEMBER, TOUCH PANEL, IMAGE DISPLAY DEVICE, AND SEPARATING METHOD - The present invention provides an optical double-sided pressure-sensitive adhesive sheet excellent in reworkability, step absorbability and anti-foaming release property. The invention relates to an optical double-sided pressure-sensitive adhesive sheet including an acrylic pressure-sensitive adhesive layer which contains an acrylic polymer (X), wherein: the acrylic polymer (X) is formed from a monomer component including an alkyl(meth)acrylate having a linear or branched alkyl group having 1 to 14 carbon atoms in an amount of 50 to 100 wt % based on a total amount of the monomer component (100 wt %) forming the acrylic polymer (X), and a content of a polar group-containing monomer is 0 to 15.0 wt % based on the total amount thereof; and a gel fraction of the acrylic pressure-sensitive adhesive layer is from 20 to 74 wt %. | 01-03-2013 |
20130020031 | METHOD AND APPARATUS FOR DETACHING PLATES JOINED TO EACH OTHER - A workpiece composed of a glass plate and a display panel joined to each other via an adhesive sheet is suction-held on both surfaces thereof by a pair of upper and lower holding members. The glass plate is detached from the display panel through swinging downward one end of the lower holding member around a support shaft provided on the other end side thereof with an entire surface of the glass plate being held in a planar state with a suction surface of the lower holding member. | 01-24-2013 |
20130142982 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET - There is provided a double-sided pressure-sensitive adhesive sheet including a pressure-sensitive adhesive body having pressure-sensitive adhesive faces (a) and (b) on both sides thereof, and a release liner (A) provided at least on the pressure-sensitive adhesive face (a) of the pressure-sensitive adhesive body. The release liner (A) includes a paper-based base material and a release layer on a face of the paper-based base material, the release layer being in contact with the pressure-sensitive adhesive face (a). The ratio of an interlayer strength of the release liner (A) with respect to a peeling force of the release liner (A) in a peeling test at 90° with respect to the pressure-sensitive adhesive face (a) is 15 or more. The double-sided pressure-sensitive adhesive sheet may preferably be used as a double-sided pressure-sensitive adhesive sheet for a flexible printed circuit board. | 06-06-2013 |
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 |
20130186572 | METHOD OF SEPARATING TWO ADHERED PLATES - A method of reusably separating two plates adhered to each other via an adhesive sheet or a curable resin layer, including
| 07-25-2013 |
20130186575 | METHOD OF SEPARATING TWO ADHERED PLATES - A method of separating two plates adhered to each other via an adhesive sheet or a curable resin layer, comprising
| 07-25-2013 |
20130203941 | ACRYLIC PRESSURE-SENSITIVE ADHESIVE TAPE - An acrylic pressure-sensitive adhesive tape including an acrylic pressure-sensitive adhesive layer, wherein a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to a glass plate is 10 N/20 mm or more and a 180° peel adhesive force of the acrylic pressure-sensitive adhesive tape to an acrylic plate is 10 N/20 mm or more. The acrylic pressure-sensitive adhesive layer contains an acrylic polymer (A), has a gel fraction of 65% or more, and has a 300% tensile residual stress of from 7 to 16 N/cm | 08-08-2013 |
20130240116 | PRODUCTION METHOD OF FLAT PANEL DISPLAY - The present invention provides a method of producing a flat panel display having, on a display surface side, an optical laminate wherein two optical elements are adhered to each other via an adhesive sheet or a curable resin layer, which includes the following step 1-step 4, or step 1-step 5, and permits reuse of at least one of the optical elements after step 4 or step 5 as an optical element in step 1:
| 09-19-2013 |
20130289210 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive composition, including an acrylic polymer produced by polymerizing a monomer component or a partial polymerization product of the monomer component. The monomer component includes alkyl (meth)acrylate having an alkyl group having 10 to 13 carbon atoms and a polar group-containing monomer other than a carboxyl group-containing monomer. A content of the alkyl (meth)acrylate is 40 wt % or more and less than 80 wt % with respect to a total amount (100 wt %) of the monomer component. A content of the polar group-containing monomer is 7 wt % or more with respect to the total amount of the monomer component. A total content of the polar group-containing monomer and an alicyclic monomer is 15 wt % or more with respect to the total amount of the monomer component. | 10-31-2013 |
20140037952 | RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE, RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE LAYER, RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE SHEET, AND LAMINATE - Provided is a pressure-sensitive adhesive capable of realizing a pressure-sensitive adhesive layer having satisfactory adhesion performance and a high ink step absorbability. A radiation-curable pressure-sensitive adhesive, which contains a (meth)acryl-based polymer obtained by polymerizing a monomer component containing 30 to 90% by weight of an alkyl(meth)acrylate having an alkyl group of 10 to 22 carbon atoms at an ester end, and having a radically polymerizable functional group containing a carbon-carbon double bond. | 02-06-2014 |
20140039128 | RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE LAYER, AND RADIATION-CURABLE PRESSURE-SENSITIVE ADHESIVE SHEET - An object of the present invention is to provide a radiation-curable pressure-sensitive adhesive layer that satisfies both reworkability and adhesion reliance. Further, another object of the present invention is to provide a pressure-sensitive adhesive sheet containing the radiation-curable pressure-sensitive adhesive layer. The invention relates to a radiation-curable pressure-sensitive adhesive layer, which has an adhesive strength of 1.0 N/20 mm or less before radiation curing and an adhesive strength of 3.0 N/20 mm or more after radiation curing, and a peeling adhesive strength of 40.0 N/(20 mm×20 mm) or less before radiation curing, to an acrylic plate. | 02-06-2014 |
20140065416 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET, LAMINATE AND METHOD FOR PEELING PLATES - A double-sided pressure-sensitive adhesive sheet includes a pressure-sensitive adhesive layer containing an acrylic polymer formed of a component comprising, as an essential monomer component, an alkyl (meth)acrylate having an alkyl group having 9 or less carbon atoms. A shear storage elastic modulus at 23° C. of the pressure-sensitive adhesive layer, which is measured by dynamic viscoelasticity measurement, is 5.0×10 | 03-06-2014 |
20140256877 | PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive sheet containing a pressure-sensitive adhesive layer. The pressure-sensitive adhesive layer has a melting point of −60° C. to 0° C. The melting point can be measured by using the pressure-sensitive adhesive layer as a measurement sample according to differential scanning calorimetry (DSC) in conformity with JIS K 7121. | 09-11-2014 |
20140272201 | PRESSURE-SENSITIVE ADHESIVE, PRESSURE SENSITIVE ADHESIVE LAYER, PRESSURE-SENSITIVE ADHESIVE SHEET, AND TOUCH PANEL - It is an object of the invention to provide a pressure-sensitive adhesive capable of forming a pressure-sensitive adhesive layer having high resistance to sebum and high resistance to moisture-induced clouding and also having low dielectric constant. The invention relates to a pressure-sensitive adhesive comprising a (meth)acryl-based polymer obtained by polymerization of a monomer component containing 65 to 88 parts by weight of an alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and 12 to 35 parts by weight of an alkyl (meth)acrylate having a secondary hydroxyl group based on 100 parts by weight of the total amount of the alkyl (meth)acrylate having an alkyl group of 8 to 22 carbon atoms and the alkyl (meth)acrylate having a secondary hydroxyl group. | 09-18-2014 |
20140322440 | METHOD FOR MANUFACTURING OPTICAL MEMBER - A method for manufacturing an optical member includes forming a printed layer on one surface of a sheet substrate or flat-plate substrate. The method further includes coating one or more pressure-sensitive adhesives selected from the group consisting of a hot melt pressure-sensitive adhesive and an active energy-ray curable pressure-sensitive adhesive on a surface on a printed layer side of the sheet substrate or flat-plate substrate, and forming a pressure-sensitive adhesive layer of the pressure-sensitive adhesive. | 10-30-2014 |