Abstract: A gas sensing element includes a gas detection layer including a pigment, the gas detection layer including a first surface; and a backing material disposed on the first surface of the gas detection layer. When reducing gas causes the gas sensing element to change in color, a color change ?L* of the gas sensing element is greater than or equal to 5.

Abstract: A gas sensing element includes a gas detection layer including a chemochromic pigment, with modifications towards enhancing shelf-life performance and false detection performance before use. The gas detection layer has an adhesion of greater than or equal to 0.2 N/25 mm. Also described are methods of making the aforedescribed element to attain enhanced shelf-life performance and false detection performance.

Abstract: A gas sensing element includes a gas detection layer including a chemochromic pigment, with modifications towards enhancing shelf-life performance and false detection performance before use. The gas detection layer has an adhesion of greater than or equal to 0.2 N/25 mm. Also described are methods of making the aforedescribed element to attain enhanced shelf-life performance and false detection performance.

Abstract: A gas detection system includes (1) an output device configured to output data acquired by monitoring a gas sensing element including a gas detection layer including a pigment; and (2) an information processing apparatus configured to process the data output by the output device, wherein the information processing apparatus includes a determining unit configured to determine whether the gas sensing element has detected gas, based on the data, and a display control unit configured to display, on an indication element, information indicating a position of the gas sensing element that has detected the gas or information indicating a status of gas leakage determined based on the data, when the determining unit determines that the gas sensing element has detected the gas.

Abstract: A gas sensing element includes a gas detection layer including a pigment, the gas detection layer including a first surface; and a backing material disposed on the first surface of the gas detection layer. When reducing gas causes the gas sensing element to change in color, a color change ?L* of the gas sensing element is greater than or equal to 5.

Abstract: The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, wherein the flame retardant-containing adhesive layer has a void content of 5-40%.

Abstract: A PSA sheet is provided, having an adhesive face formed of an acrylic PSA layer comprising an acrylic polymer. The PSA sheet has a peel strength of 5 N/10 mm or greater. The peel strength is measured as such that the adhesive face is directly adhered to an ethylene-propylene-diene rubber surface and after 20 minutes, peeled in the 180° direction at a tensile speed of 50 mm/min.

Abstract: A pressure-sensitive adhesive composition is provided for forming an acrylic pressure-sensitive adhesive that constitutes an adhesive face. The pressure-sensitive adhesive composition comprises an amino group-containing (meth)acrylate as its monomeric component. The amino group-containing (meth)acrylate accounts for 5% by mass or more of all monomeric components of the pressure-sensitive adhesive composition.

Abstract: A PSA sheet is provided, having an adhesive face formed of an acrylic PSA layer comprising an acrylic polymer. The PSA sheet has a peel strength of 5 N/10 mm or greater. The peel strength is measured as such that the adhesive face is directly adhered to an ethylene-propylene-diene rubber surface and after 20 minutes, peeled in the 180° direction at a tensile speed of 50 mm/min.

Abstract: A paint film-protecting sheet (1) is provided which effectively prevents adhesive transfer to the paint film. The paint film-protecting sheet (1) has a pressure-sensitive adhesive layer which is comprised of a non-crosslinking pressure-sensitive adhesive (20) adjacent a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate that adjoins the pressure-sensitive adhesive layer satisfies the following conditions: (1) it has an indentation modulus at 25° C. (Er(25)) of from 200 MPa to 1,100 MPa and (2) it has an indentation modulus at ?5° C. (Er(?5)) of from 400 MPa to 2,400 MPa.

Abstract: A paint film-protecting sheet (1) that effectively prevents adhesive transfer to the paint film is provided. The paint film-protecting sheet (1) includes a pressure-sensitive adhesive (PSA) layer (20), which is comprised of a non-crosslinking PSA, disposed on a polyolefin-based resin film serving as a supporting substrate (10). At least a surface portion (12) of the supporting substrate which adjoins the PSA layer is formed of a resin material that satisfies both of the following conditions: (1) it contains W wt % of a LLDPE having a density d of 0.925 g/cm3 or less, wherein W is greater than or equal to 20; and (2) it has a LLDPE content index ? of 400 or more, the LLDPE content index ? being defined as (0.935?d)×W×1000.

Abstract: A pressure-sensitive adhesive composition is provided for forming an acrylic pressure-sensitive adhesive that constitutes an adhesive face. The pressure-sensitive adhesive composition comprises an amino group-containing (meth)acrylate as its monomeric component. The amino group-containing (meth)acrylate accounts for 5% by mass or more of all monomeric components of the pressure-sensitive adhesive composition.

Abstract: The present invention provides a gasket comprising an adhesive sheet and a substrate sheet laminated on one surface of the adhesive sheet, which shows a distortion recovery rate according to the following compression distortion recovery test (I) of not less than 40%: Compression distortion recovery test (I): A 10 mm flat square sample is heated to 80° C., under which conditions a load is applied to compress the sample in the thickness direction such that the thickness thereof becomes 75% of the total thickness of the sample before loading, the load is lifted, the total thickness of the sample is measured 3 hr after unloading, and a distortion recovery rate is calculated according to the following formula: distortion recovery rate (%)=(total sample thickness 3 hr after unloading?(total sample thickness before compression×0.75))/(total sample thickness before compression×0.25)×100.

Abstract: A joined body includes: an adherend; a primer layer provided on the adherend; and a pressure-sensitive adhesive layer provided on the primer layer. The primer layer contains, as an effective component, at least one of chlorinated polypropylene and chlorinated polyethylene and an amount of the effective component per unit area is 0.5 [mg/cm2] or less. The surface of the adherend may be formed of at least one of polypropylene (PP), polyvinyl chloride (PVC), and ethylene-propylene-diene rubber (EPDM).

Abstract: A pressure-sensitive adhesive tape includes: a pressure-sensitive adhesive layer that contains at least a fine particle and/or a bubble and both the surfaces of which are pressure-sensitive adhesive surfaces; and a release liner having both a first release layer that is provided on one surface of the pressure-sensitive adhesive layer so as to contact the one surface and a second release layer located opposite to the first release layer. The thickness of the pressure-sensitive adhesive layer is 0.2 to 2.0 mm. The second release layer of the release liner is structured such that a holding time measured by a predetermined method is 2500 minutes or longer.

Abstract: The present invention relates to an acrylic pressure-sensitive adhesive including: a) an acrylic polymer containing, as a monomer unit, an alkyl (meth)acrylate including an alkyl group having 1 to 20 carbon atoms in an amount of 50% by weight or more; and b) a tackifier resin, in which the acrylic polymer a) contains two kinds of monomer units having a difference in solubility parameter (SP value) of 0.2 (MPa)1/2 or more, each in an amount of 15% by weight or more.

Abstract: Provided is double-faced adhesive tape joining apparatus that allows accurate joining of a double-faced adhesive tape on a tape joining surface of a workpiece in a curved or bent shape with no damage on a surface of a separator joined to the double-faced adhesive tape and no floating of the separator. Specifically, a hand-operable base includes a tape guide for guiding the double-faced adhesive tape successively supplied, and a joining head for pressing against the joining surface of the workpiece the double-faced adhesive tape supplied to a front end of the base. The base and the joining head are configured as to rotate relatively about a support axis toward a longitudinal tape direction.

Abstract: The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, which has a retention time of 60-2000 seconds in the following constant load peel test: [Constant Load Peel Test] (1) a sealing sheet is cut into a 10 mm width×50 mm length tape, (2) the tape is laid on a duralumin panel, a 5 kgf roller is run on the tape from one end of the tape to the other end of the tape in the length direction thereof to press the tape against the duralumin panel to form a sample, and (3) the sample is left standing at ambient temperature, normal humidity for 24 hr, the sample is fixed horizontally with the tape side facing downward, a 30 gf plummet is hung at one end in the tape length direction, the time from hanging the plummet to reaching a tape peel distance of 30 mm is measured, and this time is taken as the retention time.

Abstract: The present invention provides a sealing sheet mainly composed of an adhesive sheet, wherein the adhesive sheet comprises a core film and an adhesive layer formed on both surfaces of the core film, and the core film shows a relaxation rate of not less than 10% as measured by the following bending-stress relaxation rate measurement test, and a tensile strength of not less than 35N/10 mm: [Bending-Stress Relaxation Rate Measurement Test] (1) a core film is cut into a tape (width 20 mm, length 100 mm), the tape is rolled to form a loop with one surface thereof being inside, one end (10 mm) of the rolled tape is laid on top of the other and fixed with an adhesive tape to give a loop sample, (2) the loop sample is put on a balance, and pressed with a flat plate surface of the jig such that the distance between the flat plate surface and the balance is 20 mm to deflect the loop sample, and (3) from the start of pressing, the weight of the loop sample is measured by the balance, a ratio of the weight of the loo

Abstract: The present invention provides a sealing sheet containing a flame retardant adhesive sheet having a flame retardant-containing adhesive layer, wherein the flame retardant-containing adhesive layer has a void content of 5-40%.