Patent application number | Description | Published |
20100116807 | DISASSEMBLABLE STRUCTURE, ELECTRIC EQUIPMENT AND NON-ELECTRIC EQUIPMENT HAVING DISASSEMBLABLE STRUCTURE, AND DISASSEMBLING METHOD - The present invention relates to a disassemblable structure including: a double-coated pressure-sensitive adhesive tape or a double-coated pressure sensitive adhesive sheet including a substrate and pressure-sensitive adhesive layers formed on both surfaces of the substrate, at least one of the pressure-sensitive adhesive layers being a thermal foaming agent-containing pressure-sensitive adhesive layer; a heating element which foams the thermal foaming agent-containing pressure-sensitive adhesive layer by heating; and a pair of adherends joined to each other through the pressure-sensitive adhesive tape or sheet and the heating element. | 05-13-2010 |
20100215947 | HEAT-EXPANDABLE REMOVABLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET - Disclosed is a heat-expandable/peelable acrylic pressure-sensitive adhesive tape or sheet which maintains a high adhesion force but the bonded part can be easily separated/debonded regardless of whether the surface of the adherend is uneven. The heat-expandable/peelable acrylic pressure-sensitive adhesive tape or sheet includes a viscoelastic body containing both bubbles and microparticles, and on at least one side thereof, a pressure-sensitive adhesive layer containing a blowing agent. The heat-expandable/peelable acrylic pressure-sensitive adhesive tape or sheet preferably contains bubbles in an amount of 3 to 30 percent by volume based on the total volume of the viscoelastic body. The viscoelastic body containing both bubbles and microparticles is preferably a layer prepared by polymerization of a polymerizable composition containing a vinyl monomer mixture containing at least one alkyl(meth)acrylate whose alkyl moiety having 2 to 18 carbon atoms as a main component, or partially polymerized prepolymer of the monomer mixture; a photoinitiator; microparticles; a multifunctional (meth)acrylate; and bubbles. | 08-26-2010 |
20120034407 | HEAT EXPANDABLE REMOVABLE ACRYLIC PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET, AND METHOD OF REMOVING THE SAME - An object of the present invention is to provide a heat-expandable/peelable acrylic pressure-sensitive adhesive tape that maintains a high adhesion force, and can be easily separated or debonded at the bonded part by heating, regardless of the material constituting the adherend. | 02-09-2012 |
20120121900 | PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET - The present invention relates to a pressure-sensitive adhesive tape or sheet comprising: a viscoelastic layer containing bubbles and/or fine particles; and a pressure-sensitive adhesive layer formed on at least one side of the viscoelastic layer and formed from a pressure-sensitive adhesive composition comprising a monomer mixture comprising the following (a1), (a2) and (a3) or partially polymerized product thereof, and thermal-expandable fine particles:
| 05-17-2012 |
20120123046 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE LAYER, AND PRESSURE-SENSITIVE ADHESIVE TAPE OR SHEET - The present invention relates to a pressure-sensitive adhesive composition comprising: a monomer mixture comprising the following (a1), (a2) and (a3) or partially polymerized product thereof; and thermal-expandable fine particles:
| 05-17-2012 |
20130011573 | METHOD AND APPARATUS FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE SHEET - At least one inert-gas supply section is provided in a coating section and a light-irradiating section that are sealingly coupled to each other at a side of the coating section where a base material enters, the coating section coating a photopolymerizable composition onto the base material and the light-irradiating section applying light to the photopolymerizable composition layer after coating. Inert gas supplied from a first inert-gas supply section is sprayed from the inert-gas chamber toward the base material, and is supplied into each of the coating section and the light irradiating section. | 01-10-2013 |
20140087087 | METHOD AND APPARATUS FOR PRODUCING PHOTOREACTION PRODUCT SHEET - A photo-reactive composition layer is formed on a support with transparency while the support is moved in one direction. Then the support is reversed in a first irradiating chamber as to be moved in a direction opposite to the one direction to generate a serpentine transport path. The support prior to reverse and the support subsequent to reverse face to each other serpentinely, and the support is irradiated with light from lamps for ultraviolet-ray emission. The entire photo-reactive composition layer on the serpentine support is photo-polymerized while the light transmits through the support and the photo-reactive composition layer formed on the support. Then photo-polymerization reaction of the photo-reactive composition layer is facilitated in a second irradiating chamber, adjacent to the first irradiating chamber, using lamps for ultraviolet-ray emission different from those used in the first irradiating chamber in property. | 03-27-2014 |
20140120268 | METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE SHEET HAVING ULTRAVIOLET-RAY CURING-TYPE ACRYLIC PRESSURE-SENSITIVE ADHESIVE LAYER - Provided is a method for producing an pressure-sensitive adhesive sheet having an ultraviolet-ray curing-type acrylic pressure-sensitive adhesive layer that can undergo, about one or more monomers therefor, high rate-polymerization to be excellent in productivity, and is also excellent in balance between pressure-sensitive adhesive performances. The method includes: a first radiating substep of using, as an ultraviolet source, an LED lamp having a peak wavelength in the range of 300 nm to 450 nm to expose the adhesive composition to light from the LED lamp; and a second radiating substep of using, as an ultraviolet source, an ultraviolet lamp for emitting light having a peak wavelength in the range from 300 nm to 450 nm and further including a wavelength in the range of 100 nm or more and less than 300 nm after the first radiating step to expose the adhesive composition to the light. | 05-01-2014 |
20140147599 | PRODUCTION METHOD OF PHOTOREACTION PRODUCT SHEET AND APPARATUS FOR THE SAME - The present invention relates to a method in which: a photoreactive composition layer is formed on a support while conveying the support in one direction, the support is turned around at least once so that the support before turnaround faces the support after turnaround by conveying the support in the direction opposite the foregoing one direction to make a conveying route of the support multistage traveling, and in the course of multistage traveling, the support is turned around while keeping contact with three or more conveying rollers at least during the first turnaround, and light is emitted toward the support from a light irradiator to cause photopolymerization of the photoreactive composition layer formed on the support. | 05-29-2014 |
20140220255 | METHOD FOR PRODUCING PRESSURE-SENSITIVE ADHESIVE SHEET HAVING ULTRAVIOLET-RAY CURING-TYPE ACRYLIC PRESSURE-SENSITIVE ADHESIVE LAYER - Provided is a method for producing a pressure-sensitive adhesive sheet having an ultraviolet-ray curing-type acrylic pressure-sensitive adhesive layer that has a high conversion per unit amount of light, is excellent in productivity, and is also excellent in balance between pressure-sensitive adhesive performances. The method includes: a pressure-sensitive adhesive layer forming step in which the composition is irradiated with and cured by ultraviolet rays to form a pressure-sensitive adhesive layer; wherein an ultraviolet lamp that radiates the ultraviolet rays in the pressure-sensitive adhesive layer forming step is an LED lamp; the ultraviolet rays are radiated intermittently; and the time of bright periods when the ultraviolet rays are radiated is from 1 second to 30 seconds, and the time of dark periods when the rays are not radiated is from 0.1 timed to 20 times the time of the bright periods. | 08-07-2014 |