Patent application number | Description | Published |
20080280518 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET - A double-sided PSA sheet | 11-13-2008 |
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 |
20090111343 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD FOR PRODUCING THE SAME - Provided are a double-sided PSA sheet comprising a PSA layer formed by directly applying an aqueous dispersion-type PSA composition to a non-woven fabric substrate, wherein the layer has a highly smooth surface; and a method for producing the same. In this method, an aqueous dispersion-type PSA composition is applied to at least a first side of the non-woven fabric substrate and the composition is allowed to dry to form a PSA layer. A non-woven fabric of 15 μm to 70 μm in thickness, 0.3 to 0.6 g/cm | 04-30-2009 |
20090137726 | AQUEOUS PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND USE THEREOF - The present invention provides an aqueous pressure-sensitive adhesive (PSA) composition suitable for a PSA sheet that exhibits high levels of adhesiveness, high-temperature cohesive strength and edge peel resistance in a good balance and for preparation of the same. The composition is composed primarily of an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl(meth)acrylate as a main monomer and a silanol-forming monomer. The Mw of the polymer is 65×10 | 05-28-2009 |
20090137727 | AQUEOUS PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND UTILIZATION THEREOF - Provided are a pressure-sensitive adhesive (PSA) sheet having excellent foam repulsion resistance and an aqueous PSA composition suitable for preparing this sheet. The composition primarily comprises an acrylic polymer obtained by polymerizing a starting monomer material containing an alkyl (meth)acrylate as a main monomer and both acrylic acid and methacrylic acid. The acrylic polymer preferably has a weight average molecular weight of 65×10 | 05-28-2009 |
20090253850 | PRESSURE-SENSITIVE ADHESIVE SHEET AND PRODUCTION METHOD THEREOF - Provided is a PSA sheet with low toluene and total volatile organic compound (TVOC) emissions as well as low unpleasant odor level felt by users. The PSA sheet comprises a PSA layer formed of a PSA composition comprising an acrylic polymer emulsion and a tackifier resin emulsion; the toluene and TVOC emissions are at most 20 μg and at most 150 μg, respectively; in a sensory test, 90% of participants evaluate that the unpleasantness of odors emitted from the PSA sheet is less than that of toluene at a prescribed concentration. | 10-08-2009 |
20090264039 | Pressure-Sensitive Adhesive Sheet - A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 μg/m | 10-22-2009 |
20100087116 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD FOR PRODUCING THE SAME - A method of producing a double-sided pressure-sensitive adhesive (PSA) sheet having PSA layers on both sides of a nonwoven fabric substrate is provided. This method includes the steps of: preparing an emulsion-type PSA composition that satisfies both of the following conditions: a viscosity at 30° C. of 0.1 to 3 Pa·s and a solid content of 50 to 70 mass %. Also included is a step of forming a PSA layer (for example, a second PSA layer) by directly coating at least one side (for example, the second side) of the nonwoven fabric this PSA composition. | 04-08-2010 |
20100099317 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND USE THEREOF - The present invention provides a water-dispersed acrylic PSA composition suitable for forming a PSA sheet. The PSA composition contains 0.5 to 15 parts by weight of an acrylic copolymer (polymer H) with a Tg of 30° C. to 120° C. in relation to 100 parts by weight of an acrylic copolymer (polymer L) with a Tg of −70° C. to −50° C. The polymer L is obtained by polymerization of a monomer starting material comprising 60 wt % or more of an alkyl (meth)acrylate with a C | 04-22-2010 |
20100099318 | PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a water-dispersed acrylic PSA composition suitable for forming a PSA sheet. The PSA composition contains 100 parts by weight of an acrylic copolymer with a Tg of −70° C. to −50° C. obtained by polymerization of a monomer starting material containing 60 wt % or more of an alkyl (meth)acrylate with a C | 04-22-2010 |
20100178500 | PRESSURE-SENSITIVE ADHESIVE SHEET - There is provided a pressure-sensitive adhesive (PSA) sheet with the property of corroding a metal not in contact therewith suppressed. This PSA sheet is provided with a PSA layer formed from a water-dispersed PSA composition. The PSA composition contains a water-dispersed acrylic polymer synthesized using a sulfur-containing chain transfer agent. Moreover, in a gas generation test whereby the PSA sheet is heated at 85° C. for one hour, the emission of sulfur-containing gas is 0.043 μg or less per 1 cm | 07-15-2010 |
20100239804 | Pressure-Sensitive Adhesive Sheet - A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 μg/m | 09-23-2010 |
20100247833 | Pressure-Sensitive Adhesive Sheet - A pressure-sensitive adhesive sheet has a high adhesiveness and an excellent terminal peeling resistance as well as exhibits extremely small diffusing amounts of formaldehyde and toluene. The pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer of a water-dispersion type acrylic pressure-sensitive adhesive containing a water-dispersion type acrylic polymer and a tackifying resin-containing emulsion, wherein a diffusing amount of formaldehyde is less than 3 μg/m | 09-30-2010 |
20100255241 | PRESSURE-SENSITIVE ADHESIVE PRODUCT - Provided is a pressure-sensitive adhesive (PSA) product having specifications in which the level of volatile organic compound emissions has been minimized, and effectively displaying those specifications. The PSA product includes a PSA layer having an adhesive face capable of attaching to an adherend, and a backing sheet disposed on a back face of the PSA layer. The PSA layer produces toluene emissions of at most 20 μg/g and produces total volatile organic compound emissions of at most 300 μg/g. The backing sheet has a mark in a color selected from green and blue displayed on a back face thereof. | 10-07-2010 |
20100255297 | PRESSURE-SENSITIVE ADHESIVE SHEET AND METHOD OF MANUFACTURE THEREOF - The present invention provides a pressure-sensitive adhesive sheet minimizing the corrosion of metals not in contact with the PSA sheet. PSA sheet | 10-07-2010 |
20100310866 | PRESSURE-SENSITIVE ADHESIVE SHEET - An adhesive sheet is provided in which properties that cause corrosion of a non-contacting metal are inhibited. The adhesive sheet is provided with a pressure-sensitive adhesive layer formed from an aqueous dispersion type adhesive composition. The pressure-sensitive adhesive composition contains an aqueous dispersion type acrylic polymer synthesized using a chain transfer agent that does not have sulfur as a composite element thereof. The amount of sulfur-containing gas (as SO | 12-09-2010 |
20110008605 | DOUBLE-SIDED ADHESIVE PRESSURE-SENSITIVE ADHESIVE SHEET - Provided is a double-sided pressure-sensitive adhesive (PSA) sheet that can be appropriately used in parts to be recycled. A PSA sheet has a hemp-containing nonwoven fabric substrate having a bulk density of 0.35 to 0.60 g/cm | 01-13-2011 |
20110014409 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive (PSA) sheet that has reduced amounts of toluene emission and TVOC emission, and demonstrates superior adhesion properties. This PSA sheet is provided with a release liner having, on at least a first side thereof, a release layer composed of a silicone-based release agent, and a PSA layer provided on the release layer. The PSA layer contains a PSA component that is synthesized in an aqueous solvent or ethyl acetate. The release layer has an amount of silicone that transfers to Single-Sided Adhesive Tape No. 31B (Nitto Denko Corp.) of 10 kcps or less per unit surface area equivalent to a circle having a diameter of 30 mm when determined as X-ray intensity of silicon by X-ray fluorescence analysis. | 01-20-2011 |
20110039988 | Pressure-Sensitive Adhesive Sheet - A pressure-sensitive adhesive sheet contains at least a pressure-sensitive adhesive layer containing an acrylic pressure-sensitive adhesive containing an acrylic polymer composition containing an acrylic polymer as a main component and a tackifier containing a tackifying resin as a main component, wherein reflection rate and attached amount in the fogging test in accordance with German Industrial Standard DIN 75201 are 70% or more and 2.0 mg or less, respectively. In the acrylic pressure-sensitive adhesive which forms the pressure-sensitive adhesive layer, a ratio of components having a molecular weight of 300 or less is preferably 4.2% by weight or less based on the total amount of solid matter of the acrylic pressure-sensitive adhesive. Furthermore, in the tackifying resin in the tackifier, a ratio of components having a molecular weight of 300 or less is suitably 4.2% by weight or less based on the total amount of solid matter of the tackifying resin. | 02-17-2011 |
20110070430 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET - A double-sided pressure-sensitive adhesive (PSA) sheet having a plastic film as a substrate is provided, with the property of corroding a metal not in contact therewith being suppressed. This PSA sheet has a PSA layer that uses a water-dispersed acrylic PSA composition on each side of the plastic film substrate. The PSA composition contains a water-dispersed acrylic polymer synthesized using a sulfur-containing chain transfer agent. The PSA sheet has the emission of sulfur-containing gas of 0.043 μg or less per 1 cm | 03-24-2011 |
20110086219 | Pressure-Sensitive Adhesive Sheet - The present invention relates to a pressure-sensitive adhesive sheet, which includes: a base material including a foamed substance; and a pressure-sensitive adhesive layer disposed on at least one surface of the base material, in which the pressure-sensitive adhesive layer is formed by a water-dispersible acrylic pressure-sensitive adhesive composition containing a water-dispersible acrylic copolymer (a) having a weight-average molecular weight of from 400,000 to 900,000, said copolymer containing a (meth)acrylic acid alkyl ester having 2 to 14 carbon atoms in the alkyl group thereof as a principal monomer component and a functional group-containing monomer as a monomer component; and a water-dispersible acrylic low-molecular weight component (b) having a weight-average molecular weight of from 5,000 to 250,000. According to the pressure-sensitive adhesive sheet, a pressure-sensitive adhesive layer is formed with an excellent adhesivity on a base material foamed by a foamed substance, without restriction in the method of forming the pressure-sensitive adhesive layer or in the type of a crosslinking agent. | 04-14-2011 |
20110151220 | DOUBLE-SIDED PRESSURE-SENSITIVE ADHESIVE SHEET - A double-sided pressure-sensitive adhesive (PSA) sheet | 06-23-2011 |
20110183093 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive (PSA) sheet which is formed using a non-toluene solvent-based acrylic PSA composition, and which minimizes corrosion of metals not in contact with the PSA sheet. PSA sheet | 07-28-2011 |
20110263787 | WATER-DISPERSED PRESSURE-SENSITIVE ADHESIVE COMPOSITION AND METHOD OF PRODUCTION - A water-dispersed pressure-sensitive adhesive (PSA) composition having a low perishability is provided. This PSA composition includes as a base polymer an acrylic polymer and, when held in a 30° C. atmosphere for 5 days, the number of viable microorganisms present per milliliter of the composition following such storage is less than 10 | 10-27-2011 |
20110263790 | PRESSURE-SENSITIVE ADHESIVE SHEET - A pressure-sensitive adhesive (PSA) sheet, in which offending odors from viable microorganisms have been suppressed to a level that cannot be detected by the senses, is provided. This PSA sheet has a PSA layer which contains as a base polymer an acrylic polymer. When PCR amplification of DNA extracted from the PSA layer is carried out with 16S rDNA as the target, and the fluorescence intensity is measured after, first, isolating the amplified 16S rDNA region by gel electrophoresis, then staining with SYBR Gold and irradiating with excitation light having a wavelength of 302 nm and an intensity of 500 μW/cm | 10-27-2011 |
20120082816 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive (PSA) sheet provided with a non-toluene-based PSA layer and having superior adhesion properties. A PSA sheet | 04-05-2012 |
20120082817 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a PSA sheet provided with a release liner having, on at least a first side thereof, a release layer composed of a silicone-based release agent, and a PSA layer provided on the release layer and containing an acrylic polymer synthesized in ethyl acetate as an adhesive component thereof. The release layer has an amount of silicone that transfers to Single-Sided Adhesive Tape No. 31 B manufactured by Nitto Denko Corporation of 10 kcps or less per unit surface area equivalent to a circle having a diameter of 30 mm when determined as X-ray intensity of silicon by X-ray fluorescence analysis. A mark of a color selected from green and blue is displayed on the back of the PSA sheet. | 04-05-2012 |
20120082818 | PRESSURE-SENSITIVE ADHESIVE SHEET - The present invention provides a pressure-sensitive adhesive (PSA) sheet provided with a non-toluene-based PSA layer and having superior adhesion properties. A PSA sheet | 04-05-2012 |
20120114930 | PRESSURE-SENSITIVE ADHESIVE SHEET - A PSA sheet | 05-10-2012 |
20130156946 | PRESSURE-SENSITIVE ADHESIVE PRODUCT - Provided is a pressure-sensitive adhesive (PSA) product having specifications in which the level of volatile organic compound emissions has been minimized, and effectively displaying those specifications. The PSA product includes a PSA layer having an adhesive face capable of attaching to an adherend, and a backing sheet disposed on a back face of the PSA layer. The PSA layer produces toluene emissions of at most 20 μg/g and produces total volatile organic compound emissions of at most 300 μg/g. The backing sheet has a mark in a color selected from green and blue displayed on a back face thereof. | 06-20-2013 |
20130196142 | DOUBLE-FACED PRESSURE-SENSITIVE ADHESIVE SHEET - Provided is a double-faced PSA sheet comprising a first PSA layer formed of a first PSA composition comprising an acrylic polymer P | 08-01-2013 |