Abstract: This invention provides a PSA sheet with which degradation of the appearance after its application is efficiently prevented while showing uniform adhesive properties over the entire sheet with greater ease of application. The PSA sheet provided by this invention is an air-impermeable PSA sheet having an adhesive surface. The PSA sheet comprises a PSA layer forming the adhesive surface. In the adhesive surface, at least one groove is formed. The groove runs in a wavy shape in the adhesive surface.

Abstract: Provided is a laminate sheet with which degradation of the appearance after its application can be highly prevented while maintaining good adhesive properties. The laminate sheet provided by this invention is a long laminate sheet having an adhesive surface. The laminate sheet comprises a PSA layer forming the adhesive surface and an air-impermeable substrate sheet supporting the PSA layer. The substrate sheet surface is partially provided with the PSA layer, whereby the substrate sheet surface has a PSA-bearing area and a PSA-free area. The PSA-free area includes at least a strip-shaped area. The strip-shaped area runs at angles intersecting the width-direction edges of the laminate sheet.

Abstract: This invention provides a PSA sheet with which degradation of the appearance after its application is efficiently prevented while showing uniform adhesive properties over the entire sheet with greater ease of application. The PSA sheet provided by this invention is an air-impermeable PSA sheet having an adhesive surface. The PSA sheet comprises a PSA layer forming the adhesive surface. In the adhesive surface, at least one groove is formed. The groove runs in a wavy shape in the adhesive surface.

Abstract: The present invention provides a protection film for blades to be adhered to the blade surface of wind power generators, which has a substrate and a pressure-sensitive adhesive layer on one surface of the substrate.

Abstract: A protective film has a base layer and a pressure-sensitive adhesive layer provided on one surface of the base layer. In the protective film, a ventilation portion through which air can pass from one surface to the other surface is formed. A trouser tear strength in the vertical direction (MD) of the wheel protective film is 3 N or more; and a pressure-sensitive adhesive force of the wheel protective film (adherend: acrylic clear-coated panel, after a lapse of 48 hours under the condition of 23° C.×50% RH) is 4.9 N/25 mm or more at a tensile speed of 0.3 m/min., and 19.6 N/25 mm or less at a tensile speed of 30 m/min.

Abstract: 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 ? 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.

Abstract: Provided is an electroconductive pressure-sensitive adhesive tape which is satisfactorily less corrosive and is capable of maintaining stable electrical conductivity over the long term. The electroconductive pressure-sensitive adhesive tape has at least one acrylic pressure-sensitive adhesive layer. The electroconductive pressure-sensitive adhesive tape has a volume resistance of 1×101? or less and has a total amount of acrylic acid ions and methacrylic acid ions extracted from the electroconductive pressure-sensitive adhesive tape of 20 ng/cm2 or less per unit area of the acrylic pressure-sensitive adhesive layer, where the extraction is performed with pure water under conditions of 100° C. for 45 minutes, and the total amount is measured through ion chromatography.

Abstract: 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.

Abstract: Disclosed is a heat-activated adhesive sheet which includes a heat-activated adhesive layer, and two release liners arranged so as to sandwich and protect the heat-activated adhesive layer. One of the two release liners is a release liner containing a polyolefinic film as a base material, and the other is a release liner containing a polyester film as a base material. This heat-activated adhesive sheet has a transfer heat-activated adhesive layer, can thereby have a small thickness, is unlikely to suffer from “unintended separation”, and is unlikely to cause lifting and delamination of release liners when the sheet is stored as a roll.

Abstract: Provided is a double-faced pressure-sensitive adhesive tape for solar cell modules superior in processability and workability during operations. The double-faced pressure-sensitive adhesive tape for solar cell modules according to the present invention is a double-faced pressure-sensitive adhesive tape having a pressure-sensitive adhesive layer, characterized in that the frictional force, which is defined as the stress applied when a sample of 2 cm×2 cm in size having a 30 g load fixed is pulled on an aluminum plate in the horizontal direction at a speed of 300 mm/min, is 0.01 to 1.0 N/cm2, on at least one face of the pressure-sensitive adhesive layer.

Abstract: The present invention has an object to provide an electroconductive pressure-sensitive adhesive tape that does not cause separator lifting. In particular, it is an object of the present invention to provide an electroconductive pressure-sensitive adhesive tape that does not cause separator lifting even when the tape is wound into a roll shape or has a long length and that has excellent protective properties for the pressure-sensitive adhesive layer and excellent handling properties. The electroconductive pressure-sensitive adhesive tape of the present invention includes an electroconductive pressure-sensitive adhesive tape main body having a pressure-sensitive adhesive layer on one side of a metal foil and a terminal formed on the metal foil and penetrating the pressure-sensitive adhesive layer, and includes a separator provided on a surface of the pressure-sensitive adhesive layer and having an elongation of 600% or more in the longitudinal direction.

Abstract: An object of the present invention is to provide an insulating tape superior in durability in appearance that is resistant to yellowing even when used under severe environment (for example, under high-temperature and high-humidity condition) or for an extended period of time and also to deterioration in appearance of the device employing the insulating tape. The insulating tape includes a plastic film base and a pressure-sensitive adhesive layer formed on at least one side of the plastic film base, the insulating tape has a b* value after storage in an environment of 85° C. and 85% RH for 500 hours of 3.0 or less.

Abstract: The present invention provides a protection film for blades to be adhered to the blade surface of wind power generators, which has a substrate and a pressure-sensitive adhesive layer on one surface of the substrate.

Abstract: Provided is a double-faced pressure-sensitive adhesive tape superior in processability and workability during operation in solar cell modules. The double-faced pressure-sensitive adhesive tape according to the present invention is a double-faced pressure-sensitive adhesive tape having an acrylic pressure-sensitive adhesive layer containing bubbles and/or hollow microspheres, characterized in that the frictional force, which is defined as the stress applied when a sample of 2 cm×2 cm in size having a 30 g load fixed on at least one side of the acrylic pressure-sensitive adhesive layer containing bubbles and/or hollow microspheres, is pulled on an aluminum plate in the horizontal direction at a speed of 300 mm/min, is 0.01 to 1.0 N/cm2.

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: Disclosed is a double-faced pressure-sensitive adhesive tape or sheet including a substrate and, respectively arranged on both sides thereof, two pressure-sensitive adhesive layers. The thickness from the surface of one of the two pressure-sensitive adhesive layers to that of the other pressure-sensitive adhesive layer is 25 ?m or less. The two pressure-sensitive adhesive layers have different adhesive strengths, and a pressure-sensitive adhesive layer having a lower adhesive strength has a tack in terms of ball number 3 or greater as determined according to the inclined type ball tack testing method specified in JIS Z 0237 at an inclination angle of 30°, a temperature of 23° C., and relative humidity of 65%. The substrate preferably has a thickness of 10 ?m or less and more preferably has a thickness of 3 ?m or less. Each of the two pressure-sensitive adhesive layers preferably has a thickness of 6 ?m or less.

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: Disclosed is a heat-activated adhesive sheet which includes a heat-activated adhesive layer, and two release liners arranged so as to sandwich and protect the heat-activated adhesive layer. One of the two release liners is a release liner containing a polyolefinic film as a base material, and the other is a release liner containing a polyester film as a base material. This heat-activated adhesive sheet has a transfer heat-activated adhesive layer, can thereby have a small thickness, is unlikely to suffer from “unintended separation”, and is unlikely to cause lifting and delamination of release liners when the sheet is stored as a roll.

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.