| Patent application number | Description | Published |
| 20080311395 | Adhesive Composition, Adhesive Sheet, and Surface-Protective Film - Disclosed is a pressure sensitive adhesive composition comprising a (meth)acrylic polymer comprising, as a monomer component, 0.1 to 4.9% by weight of a reactive monomer having an alkylene oxide group, wherein the reactive monomer has an average number of moles of an oxyalkylene unit added to the reactive monomer falls within the range from 3 to 40, and a pressure sensitive adhesive composition comprising an alkali metal salt. The present invention provides a pressure sensitive adhesive composition which is excellent in antistatic property of a no-electrification-prevented adherend upon peeling, and has reduced staining of an adherend and is excellent in adhesion reliance. Also disclosed is an antistatic pressure sensitive adhesive sheet or surface-protecting film prepared using the composition. | 12-18-2008 |
| 20090029162 | PRESSURE SENSITIVE ADHESIVE COMPOSITION, PRESSURE SENSITIVE ADHESIVE SHEET AND SURFACE PROTECTIVE FILM - A pressure-sensitive adhesive composition characterized by comprising a water-dispersible (meth)acryl-based polymer containing, as a monomer component, 50 to 99.9% by weight of a (meth)acrylate having an alkyl group with a carbon number of 1 to 14, and an ionic liquid. There is provided a pressure-sensitive adhesive composition that attains static charge prevention at peeling between pressure sensitive adhesive layer and adherend not rendered antistatic, thereby reducing contamination of the adherend. Also, there are provided, making use of the same, an antistatic pressure sensitive adhesive sheet and surface protective film. | 01-29-2009 |
| 20090163626 | ADHESIVE COMPOSITION, ADHESIVE SHEET, AND SURFACE PROTECTIVE FILM - Disclosed is a pressure sensitive adhesive composition characterized by containing an ionic liquid and a polymer which contains, as a monomer unit, 0.1-10% by weight of a (meth)acrylate with a hydroxyalkyl group having 3-12 carbon atoms. The present invention provides a pressure sensitive adhesive composition which is excellent in antistatic property of a no-electrification-prevented adherend upon peeling, and has reduced staining of an adherend and is excellent in adhesion reliance. Also disclosed is an antistatic pressure sensitive adhesive sheet or surface-protecting film prepared using the composition. Also disclosed is an antistatic pressure sensitive adhesive sheet or surface-protecting film prepared using the composition. | 06-25-2009 |
| 20090258176 | Release liners, pressure-sensitive adhesive tape, and pressure-sensitive adhesive tape roll - A first release liner of the present invention comprises a single- or multilayered film having a releasable layer in which the peel strength in application to an acrylic plate (23 DEG C.) is 0.02-0.5 N/20 mm. Also provided is a second release liner which comprises a single- or multilayered film having a releasable layer comprising an ethylene/vinyl acetate resin. The release liners each may be a multilayered film composed of a substrate and a releasable layer. When each of the release liners is used as a release liner in winding a pressure-sensitive adhesive tape on a bobbin, the tape winding operation is free from troubles that the release liner undesirably peels off, tape shifting occurs, and air inclusion occurs between tape layers. When the pressure-sensitive adhesive tape is used, the release liner can be easily peeled from the pressure-sensitive adhesive layer. | 10-15-2009 |
| 20090317635 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEETS, AND SURFACE PROTECTING FILM - An object of the present invention is to provide a pressure-sensitive adhesive composition which is excellent in antistatic property of a non-electrification-prevented adherend (subject to be protected) upon peeling, and has reduced stainability in an adherend and is excellent in adhesion reliance, and electrification preventing pressure-sensitive adhesive sheets using the same. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.1 to 100% by weight of a (meth)acrylic acid alkylene oxide. There is provided a pressure-sensitive composition comprising an ionic liquid, and a polymer containing, as a monomer component, 0.5 to 30% by weight of a nitrogen-containing monomer and having a glass transition temperature Tg of no higher than 0° C. There is provided a pressure-sensitive composition comprising an ionic liquid, and a (meth)acryl-based polymer containing, as a monomer component, 0.01 to 20% by weight of a reactive surfactant. | 12-24-2009 |
| 20100003441 | RELEASE LINER AND PRESSURE- SENSITIVE ADHESIVE SHEET - Disclosed is a release liner having a multilayer structure of at least three layers including two surface layers and an intermediate layer, in which one of the two surface layers contains a high-density polyethylene, the other contains a low-density polyethylene, and the intermediate layer contains a low-density polyethylene alone as its resin component. Also disclosed is a pressure-sensitive adhesive sheet including the release liner and at least one pressure-sensitive adhesive layer, in which a release force X (N/mm) between the release liner and the pressure-sensitive adhesive layer and a rigidity Y of the release liner [(Young's modulus of the release liner)×(thickness) | 01-07-2010 |
| 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 |