Patent application number | Description | Published |
20080248231 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET FOR USE IN WIRING CIRCUIT BOARD AND WIRING CIRCUIT BOARD HAVING THE DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE 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. | 10-09-2008 |
20090095516 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET FOR USE IN WIRING CIRCUIT BOARD AND WIRING CIRCUIT BOARD - The present invention provides a double-sided pressure-sensitive adhesive tape or sheet for use in wiring circuit board, which includes a pressure-sensitive adhesive layer formed by a pressure-sensitive adhesive composition containing an acrylic polymer as a main component, in which the double-sided pressure-sensitive adhesive tape or sheet has an amount of total outgas of 250 μg/g or less and a diffusion amount of toluene of 10 μg/g or less. The double-sided pressure-sensitive adhesive tape or sheet has a small generating amount of VOC as well as excellent punching processing property and anti-repulsion property. | 04-16-2009 |
20090095517 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET FOR WIRING CIRCUIT BOARD AND WIRING CIRCUIT BOARD - The present invention provides a double-sided pressure-sensitive adhesive tape or sheet for wiring circuit board, which includes a pressure-sensitive adhesive layer formed by a pressure-sensitive adhesive composition, wherein the pressure-sensitive adhesive composition contains an acrylic polymer as a main component and further contains an electrically conductive filler in a proportion of 5 to 100 parts by weight with respect to 100 parts by weight of a total solid in the pressure-sensitive adhesive composition except the electrically conductive filler. The double-sided pressure-sensitive adhesive tape or sheet is excellent in adhesiveness, electrically conducting property and anti-repulsion property, and thus can be advantageously used for wiring circuit board. | 04-16-2009 |
20090263606 | THERMOSETTING ADHESIVE OR PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET - The present invention provides a thermosetting adhesive or pressure-sensitive adhesive tape or sheet including: a thermosetting adhesive or pressure-sensitive adhesive layer formed of a thermosetting adhesive or pressure-sensitive adhesive composition containing an acrylic polymer (X) constituted of, as essential monomer components, an alkyl (meth)acrylate (a) in which the alkyl moiety thereof has from 2 to 14 carbon atoms and a cyano group-containing monomer (b), and a phenol resin (Y); and provided on at least one surface of the thermosetting adhesive or pressure-sensitive adhesive layer, a release liner including a plastic film substrate and a release layer provided on at least one side of the plastic film substrate, the release layer containing low density polyethylene as a major component and having a thickness of 5 μm or more and less than 20 μm. | 10-22-2009 |
20120055700 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE TAPE FOR FIXING FLEXIBLE PRINTED CIRCUIT BOARD AND FLEXIBLE PRINTED CIRCUIT BOARD WITH THE SAME - Provided is a double-sided pressure-sensitive adhesive tape for fixing a flexible printed circuit board superior in adhesive power after bonding under low pressure and also in repelling resistance after processing in high-temperature steps. The double sided pressure-sensitive adhesive tape for fixing a flexible printed circuit board according to the present invention has a 180° peel adhesion, as determined by bonding the adhesive tape onto a stainless steel plate under pressure by one reciprocation of a 10-g roller, leaving it still for 5 minutes and measuring it at a tensile speed of 300 mm/minute, of 6.5 N/20 mm or more and a terminal separation distance after reflow of 2.5 mm or less. | 03-08-2012 |
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 |
20120111612 | THERMOSETTING ADHESIVE TAPE OR SHEET, AND FLEXIBLE PRINTED CIRCUIT BOARD - The present invention provides a thermosetting adhesive tape or sheet having a thermosetting adhesive layer, which can be stored stably at room temperature, and, when thermally cured, can exert excellent adhesiveness and high thermal stability after exposure to heat and moist, because the resin in the adhesive rapidly reacts upon curing. The thermosetting adhesive tape or sheet according to the present invention includes a thermosetting adhesive layer which has a gel fraction of less than 70%, a difference in gel fraction between before and after storage at 40° C. for 7 days [(gel fraction after storage at 40° C. for 7 days)−(gel fraction before storage at 40° C. for 7 days)] of 15% or less, and a gel fraction after curing at 150° C. for 1 hour of 90% or more. | 05-10-2012 |
20120114937 | INSULATING TAPE - An object of the present invention is to provide an insulating tape that is superior in less-corrosive property and provides its product containing the insulating tape with favorable reliability even when it is used under severer environment for an extended period of time. The insulating tape according to the present invention includes a plastic film base material and a pressure-sensitive adhesive layer including an acrylic polymer on or above at least one face of the plastic film base material, wherein the pressure-sensitive adhesive layer has a moisture content, as determined after storage in an environment at 60° C. and 90% RH for 24 hours, of less than 0.15 wt % and monomer components constituting the acrylic polymer contain substantially no carboxyl group-containing monomer. | 05-10-2012 |
20120164446 | PRESSURE-SENSITIVE ADHESIVE LABEL FOR HARD DISK DRIVE AND METHOD OF MANUFACTURING THE PRESSURE-SENSITIVE ADHESIVE LABEL FOR HARD DISK DRIVE - A pressure-sensitive adhesive label for HDD is a pressure-sensitive adhesive label that has an information display function and can reduce the sound generated when a hard disk drive is driven by being pasted to the external surface of the case of the hard disk drive. The pressure-sensitive adhesive label for HDD includes: a substrate layer composed of a metallic foil; a rust-proof layer covering the major surface of the substrate layer; an information display layer, on the surface of which printing can be performed, provided on one of the major surfaces of a laminated body made of the substrate layer and the rust-proof layer; and a pressure-sensitive adhesive layer provided on the other major surface of the laminated body. | 06-28-2012 |
20130004767 | ELECTROCONDUCTIVE PRESSURE-SENSITIVE ADHESIVE TAPE - Provided is an electroconductive pressure-sensitive adhesive tape which can exhibit stable electrical conductivity even when used over a long duration and/or used under severe environmental conditions. The electroconductive pressure-sensitive adhesive tape has a metallic foil and, on one side thereof, a pressure-sensitive adhesive layer, in which the electroconductive pressure-sensitive adhesive tape has a maximum resistance in the first cycle of 1 Ω or less and has a maximum resistance in the 200th cycle being 5 times or less the maximum resistance in the first cycle, as measured in a thermo-cycle test. | 01-03-2013 |
20130118692 | METHOD OF DETACHING PLATES - Disclosed is a method for detaching two plates bonded through a double-coated pressure-sensitive adhesive sheet without substantially applying such a force (load) to the plates as to cause large distortion (deformation) leading to fracture or breakage of the plates. The method detaches two plates bonded through a double-coated pressure-sensitive adhesive sheet by applying a force to at least one of the two plates at least in a direction normal to the plate at such a temperature that the double-coated pressure-sensitive adhesive sheet has a storage elastic modulus of 1.0×10 | 05-16-2013 |
20130122288 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET - Disclosed is a pressure-sensitive adhesive composition capable of forming a pressure-sensitive adhesive layer having satisfactory tackiness at room temperature and superior reworkability at a low temperature. The pressure-sensitive adhesive composition includes an acrylic polymer formed from a monomer component through polymerization, or a partial polymer of the monomer component. The monomer component includes a (meth)acrylic alkyl ester whose alkyl moiety being a linear or branched-chain alkyl group having 10 to 13 carbon atoms and includes substantially no carboxyl-containing monomer. | 05-16-2013 |
20130123417 | PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive sheet excellent in the resistance to clouding caused by humidification, and excellent in the level difference absorbability, in particular, in the level difference absorbability for a high level difference is provided. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components; the monomer components includes alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms and a hydrophilic monomer; the content of the alkyl (meth)acrylate is 30% by weight or more in relation to the total amount (100% by weight) of the monomers; and the content of the hydrophilic monomer is 10% by weight or more in relation to the total amount (100% by weight) of the monomers. | 05-16-2013 |
20130123450 | PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive sheet excellent in the level difference absorbability, in particular, in the level difference absorbability for a high level difference, and also excellent in workability is provided. The pressure-sensitive adhesive sheet of the present invention is a pressure-sensitive adhesive sheet including a pressure-sensitive adhesive layer, wherein the pressure-sensitive adhesive layer includes an acrylic polymer obtained by polymerizing monomer components; the monomer components includes alkyl (meth)acrylate having a linear or branched alkyl group having 10 to 16 carbon atoms; the content of the alkyl (meth)acrylate is 70% by weight or more in relation to the total amount (100% by weight) of the monomers; and the gel fraction of the pressure-sensitive adhesive layer is 50% by weight or more. | 05-16-2013 |
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 |