Abstract: The present invention relates to a surface-modifying sheet including a release sheet and a surface-modifying layer, and the surface-modifying layer containing a component that reacts with a thermosetting resin; a surface-modified member, a coated article, a printed article and a joined body, using the surface-modifying sheet; and a method for producing a surface-modified member.

Abstract: This invention provides a PSA composition comprising a base polymer and a tackifier resin. The base polymer is a block copolymer of a monovinyl-substituted aromatic compound and a conjugated diene compound. The tackifier resin comprises a tackifier resin TH having a softening point of 120° C. or above. The tackifier resin TH comprises a tackifier resin THR1 having an aromatic ring while having a hydroxyl value of 30 mgKOH/g or lower.

Abstract: This invention provides a PSA sheet comprising a single PSA layer having a thickness of 100 ?m or larger. The PSA layer is formed from a solvent-based PSA composition. When a cross-sectional area vertical to the PSA layer is observed, the PSA layer has fewer than 1.0 bubble of 100 ?m size or larger per mm2 of cross-sectional area. When the PSA layer is stored at 80° C. for 30 minutes, the mass of toluene released from the PSA layer is 10000 ppm or less of the mass of the PSA layer.

Abstract: The present invention provides a pressure-sensitive adhesive composition and a pressure-sensitive adhesive sheet comprising a layer formed from the said composition. The pressure-sensitive adhesive composition comprises, as a base polymer, a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound. The pressure-sensitive adhesive composition further comprises a tackifier resin (TH) having a hydroxyl value of 80 mgKOH/g or higher.

Abstract: The present invention provides a pressure-sensitive adhesive composition comprising a base polymer and a tackifier resin. The base polymer is a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound. The tackifier resin comprises a low softening point resin having a softening point below 120° C. and a high softening point resin having a softening point of 120° C. or above. The high softening point resin comprises a terpene-phenol resin.

Abstract: The present invention provides a double-faced pressure-sensitive adhesive sheet comprising a foam substrate, pressure-sensitive adhesive layers provided on a first face and a second face of the foam substrate, and having an overall thickness t of 400 ?m or smaller. At least one of the pressure-sensitive adhesive layers is constituted with a rubber-based pressure-sensitive adhesive comprising, as a base polymer, a block copolymer of a mono-vinyl-substituted aromatic compound and a conjugated diene compound.

Abstract: 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.

Abstract: 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 8 is provided with a release liner 87 having, on at least a first side thereof, a release layer composed of a silicone-based release agent, and a PSA layer 85 provided on the release layer. A PSA composition that composes the PSA layer 85 contains a water-dispersed acrylic polymer and a tackifier resin emulsion prepared without using an organic solvent. The release layer has an amount of silicone that transfers to Single-Sided Adhesive Tape No. 31B 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.

Abstract: 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 8 is provided with a release liner 87 having, on at least a first side thereof, a release layer composed of a silicone-based release agent, and a PSA layer 85 provided on the release layer. A PSA composition that composes the PSA layer 85 contains a water-dispersed acrylic polymer and a tackifier resin emulsion prepared using a solvent that does not contain an aromatic hydrocarbon-based organic solvent. The release layer has an amount of silicone that transfers to Single-Sided Adhesive Tape No. 31B 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.

Abstract: The double-faced adhesive tape has a substrate, an acrylic pressure-sensitive adhesive layer, a rubber pressure-sensitive adhesive layer, and a first release liner that is formed on an external side of the rubber pressure-sensitive adhesive layer, and a second release liner that is formed on an external side of the acrylic pressure-sensitive adhesive layer. The first release liner each has a polymer layer and a paper substrate layer. Further, the second release liner each has a polymer layer and a paper substrate layer. Dynamic friction coefficient on the surface of each polymer layer is less than 1.0, when the coefficient is measured according to JIS K7125.

Abstract: The present invention provides a double-sided pressure-sensitive adhesive tape or sheet including a bubble-containing pressure-sensitive adhesive layer; and a releasable liner protecting a pressure-sensitive adhesive surface of the bubble-containing pressure-sensitive adhesive layer, said releasable liner comprising at least a releasably treated layer formed by an ionizing radiation-curable silicone type releasing agent, in which the releasably treated layer formed by the ionizing radiation-curable silicone type releasing agent is employed onto a pressure-sensitive adhesive surface on the heavier releasable side. The double-sided pressure-sensitive adhesive tape or sheet may employ a bubble-containing pressure-sensitive adhesive layer formed by a bubble-containing pressure-sensitive adhesive composition in the form in which a gas component is mixed in a pressure-sensitive adhesive composition.

Abstract: A double-sided pressure-sensitive adhesive tape for fixing a decorative sheet for speaker, which is extremely small in the generation of VOC, is provided. The present invention relates to a double-sided pressure-sensitive adhesive tape for fixing a decorative sheet for speaker of the invention, comprising a substrate, a pressure-sensitive adhesive layer A disposed on one side of the substrate and a pressure-sensitive adhesive layer B disposed on the other side of the substrate, wherein a total volatile organic compound amount (TVOC amount) is 300 ?g/g or less, a diffusion amount of formaldehyde is 3 ?g/m3 or less, and a diffusion amount of toluene is 10 ?g/g or less. A base polymer of the layer A is preferably formed by solution polymerization using a solvent selected from a solvent composed of only ethyl acetate and a mixed solvent having a proportion of ethyl acetate of 90% by weight or more.

Abstract: The present invention provides a double-sided pressure-sensitive adhesive sheet using a plastic film substrate, ensuring good laminating workability and no elongation or rupture at the lamination even when used in a narrow or long form, where the double-sided pressure-sensitive adhesive sheet has excellent adhesive property and at the same time, exerts excellent peelability (releasability) without causing an adhesive residue at the separation. The present invention relates to a double-sided pressure-sensitive adhesive sheet comprising a plastic film substrate; and a pressure-sensitive adhesive layer on both sides of the plastic film substrate, wherein a 180° peeling pressure-sensitive adhesive force of a surface (surface A) of one of the pressure-sensitive adhesive layer to a stainless steel plate as measured at a tensile speed of 300 mm/min is 8 N/20 mm or more, and an adhesive residue is not generated in the releasability evaluation test.

Abstract: 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.

Abstract: The double-sided pressure-sensitive adhesive tape or sheet is a double-sided pressure-sensitive adhesive tape or sheet containing a support having a pressure-sensitive adhesive layer on the both surfaces thereof, characterized in that the double-sided pressure-sensitive adhesive tape or sheet has a total thickness including the thickness of the support and the two pressure-sensitive adhesive layers formed on the both surfaces of the support of 0.003 mm or more and less than 0.03 mm and a breaking strength of from 2 to 26 MPa/10 mm-width. The support preferably has a thickness of from 0.002 to 0.012 mm. As the support, plastic films (especially, a polyethylene terephthalate film) are suitable. The double-sided pressure-sensitive adhesive tape or sheet may have a length of 5 m or more and have a roll-wound form.

Abstract: The double-sided pressure-sensitive adhesive tape or sheet is a double-sided pressure-sensitive adhesive tape or sheet containing a support having a pressure-sensitive adhesive layer on the both surfaces thereof, characterized in that the double-sided pressure-sensitive adhesive tape or sheet has a total thickness including the thickness of the support and the two pressure-sensitive adhesive layers formed on the both surfaces of the support of 0.003 mm or more and less than 0.03 mm and a breaking strength of from 2 to 26 MPa/10 mm-width. The support preferably has a thickness of from 0.002 to 0.012 mm. As the support, plastic films (especially, a polyethylene terephthalate film) are suitable. The double-sided pressure-sensitive adhesive tape or sheet may have a length of 5 m or more and have a roll-wound form.

Abstract: The present invention provides a double-sided pressure-sensitive adhesive tape or sheet including a bubble-containing pressure-sensitive adhesive layer; and a releasable liner protecting a pressure-sensitive adhesive surface of the bubble-containing pressure-sensitive adhesive layer, said releasable liner comprising at least a releasably treated layer formed by an ionizing radiation-curable silicone type releasing agent, in which the releasably treated layer formed by the ionizing radiation-curable silicone type releasing agent is employed onto a pressure-sensitive adhesive surface on the heavier releasable side. The double-sided pressure-sensitive adhesive tape or sheet may employ a bubble-containing pressure-sensitive adhesive layer formed by a bubble-containing pressure-sensitive adhesive composition in the form in which a gas component is mixed in a pressure-sensitive adhesive composition.

Abstract: A pressure-sensitive adhesive label has a base having an information indication portion on its one surface thereof, and a pressure-sensitive adhesive layer formed on another surface of the base. After peeling a release liner, the label is stuck on an outer surface of a housing of the hard disk drive to reduce noise generated when the hard disk drive is driven. The release liner for coating the pressure-sensitive adhesive layer has an antistatic function and a cut line. The adhesive force of the adhesive layer is reduced by heating. The label has a surface density of not lower than 0.

Abstract: A pressure-sensitive adhesive label has a base having an information indication portion on its one surface thereof, and a pressure-sensitive adhesive layer formed on another surface of the base. After peeling a release liner, the label is stuck on an outer surface of a housing of the hard disk drive to reduce noise generated when the hard disk drive is driven. The release liner for coating the pressure-sensitive adhesive layer has an antistatic function and a cut line. The adhesive force of the adhesive layer is reduced by heating. The label has a surface density of not lower than 0.18 (kg/m2).

Abstract: The double-sided pressure-sensitive adhesive tape or sheet is a double-sided pressure-sensitive adhesive tape or sheet containing a support having a pressure-sensitive adhesive layer on the both surfaces thereof, characterized in that the double-sided pressure-sensitive adhesive tape or sheet has a total thickness including the thickness of the support and the two pressure-sensitive adhesive layers formed on the both surfaces of the support of 0.003 mm or more and less than 0.03 mm and a breaking strength of from 2 to 26 MPa/10 mm-width. The support preferably has a thickness of from 0.002 to 0.012 mm. As the support, plastic films (especially, a polyethylene terephthalate film) are suitable. The double-sided pressure-sensitive adhesive tape or sheet may have a length of 5 m or more and have a roll-wound form.