Abstract: Provided are a pressure-sensitive adhesive for a nonaqueous battery, which is excellent in adhesive property in a nonaqueous electrolytic solution, is reduced in stickiness, and can be prevented from protruding from an end surface of a pressure-sensitive adhesive tape when applied to the pressure-sensitive adhesive tape, and a pressure-sensitive adhesive tape including the pressure-sensitive adhesive. The pressure-sensitive adhesive for a nonaqueous battery of the present invention is a pressure-sensitive adhesive configured to express an adhesive property by being pressure-bonded, including: an acrylic polymer having an acid functional group; and a crystalline resin having a melting point of 25° C. or more. In one embodiment, the pressure-sensitive adhesive for a nonaqueous battery is configured to express the adhesive property by being warmed.

Abstract: Provided are a pressure-sensitive adhesive that is suppressed from being reduced in pressure-sensitive adhesive strength at the time of its contact with an oil content or an alcohol component, and a pressure-sensitive adhesive tape including the pressure-sensitive adhesive. The pressure-sensitive adhesive of the present invention is a pressure-sensitive adhesive configured to express an adhesive property by being pressure-bonded, including: an acrylic polymer having an acid functional group; and a crystalline resin having a melting point of 25° C. or more. In one embodiment, the pressure-sensitive adhesive is configured to express the adhesive property by being warmed. In one embodiment, the acrylic polymer having an acid functional group has a constituent unit “a” derived from a (meth)acrylic acid alkyl ester having a linear or branched alkyl group having 4 or more carbon atoms.

Abstract: A pressure-sensitive adhesive tape for a battery outer packaging including: a base material; and a pressure-sensitive adhesive layer arranged on one surface of the base material, where a value calculated from an expression “a loss modulus of elasticity (G?) of the pressure-sensitive adhesive tape for a battery outer packaging at 70° C.×a thickness (mm) of the pressure-sensitive adhesive layer/a thickness (mm) of the pressure-sensitive adhesive tape for a battery outer packaging” is 8×103 Pa or more; a value calculated from an expression “a storage modulus of elasticity (G?) of the pressure-sensitive adhesive tape for a battery outer packaging at 23° C. ×the thickness (mm) of the pressure-sensitive adhesive layer/the thickness (mm) of the pressure-sensitive adhesive tape for a battery outer packaging” is 3×105 Pa or less; and a pressure-sensitive adhesive strength of the pressure-sensitive adhesive tape for a battery outer packaging to a stainless-steel plate at 23° C. is 2 N/10 mm or more.

Abstract: Provided is a gas adsorption sheet for a secondary battery, which contains gas adsorbent particles excellent in gas adsorption property, and allows the gas adsorption performance of the gas adsorbent particles to be sufficiently exhibited. According to one embodiment of the present invention, there is provided a gas adsorption sheet for a secondary battery, including: a heat-resistant base material; and a gas adsorption layer arranged on at least one surface of the heat-resistant base material, wherein the gas adsorption layer contains: a binder resin; and gas adsorbent particles each of which is formed of an inorganic porous material having pores, and is capable of adsorbing a gas.

Abstract: Provided is a pressure-sensitive adhesive tape that can be used in the fixing of an electrode and a separator at the time of the production of a secondary battery, and that can satisfactorily fix the separator and the electrode to each other while maintaining the permeability of an electrolytic solution into the separator. A pressure-sensitive adhesive tape according to one embodiment of the present invention includes: a first base material; and a pressure-sensitive adhesive layer formed in a peelable manner on the first base material, in which the pressure-sensitive adhesive layer is formed by patterning.

Abstract: Provided is a pressure-sensitive adhesive tape for a battery outer packaging having the following feature: the shift (adhesive shift) of the tape in its pressure-sensitive adhesive surface and liquid penetration when the tape is subjected to a salt water immersion test are prevented, and hence the tape is useful for the outer packaging of a battery. The pressure-sensitive adhesive tape for a battery outer packaging includes: a base material; and a pressure-sensitive adhesive layer arranged on one surface of the base material, in which: a value calculated from an expression “a loss modulus of elasticity (G?) of the pressure-sensitive adhesive tape for a battery outer packaging at 70° C.×a thickness (mm) of the pressure-sensitive adhesive layer/a thickness (mm) of the pressure-sensitive adhesive tape for a battery outer packaging” is 8×103 Pa or more; a value calculated from an expression “a storage modulus of elasticity (G?) of the pressure-sensitive adhesive tape for a battery outer packaging at 23° C.

Abstract: The present invention relates to a pressure-sensitive adhesive tape for battery containing: a substrate; and a pressure-sensitive adhesive layer provided on at least one side of the substrate, in which the pressure-sensitive adhesive tape has a thickness change ratio of 20% or less after immersion in a mixed solvent of ethylene carbonate/diethyl carbonate [former/latter (volume ratio)=1/1] at 60° C. for 8 hours; and a 180° peeling adhesive strength (against aluminum foil, peel temperature: 25° C., peel rate: 300 mm/minute) of 0.5 N/10 mm or more after the above immersion.

Abstract: Provided is an insulating tape to be used in a nonaqueous secondary battery, the insulating tape being capable of maintaining its insulating property even under a severe environment, e.g., even when being heated, and being capable of improving the safety of the nonaqueous secondary battery. Specifically, provided is an insulating tape for a nonaqueous battery, including a base material, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material, in which the base material and/or the pressure-sensitive adhesive layer each contain/contains an insulating inorganic filler. Also provided is an insulating tape for a nonaqueous battery, including a base material with an insulating layer, and a pressure-sensitive adhesive layer arranged on one side, or each of both sides, of the base material with the insulating layer, in which the insulating layer contains an insulating inorganic filler.

Abstract: A covering material-provided non-aqueous secondary cell includes a non-aqueous secondary cell including a cell main body having one surface, the other surface disposed in opposed relation at spaced intervals to the one surface, and circumferential side surfaces connecting a circumferential end edge of the one surface to a circumferential end edge of the other surface and a terminal provided on at least any one of the one surface and the other surface and a covering material covering the cell main body so as to expose the terminal.

Abstract: Provided is a pressure-sensitive adhesive tape for electrochemical devices according to the present invention. The adhesive tape is for use in electrochemical device production and includes a substrate and a pressure-sensitive adhesive layer. The adhesive layer is disposed on or over at least one side of the substrate and contains an acrylic polymer as a base polymer. The adhesive tape has a first and a second 180° peel adhesion strength. The first 180° peel adhesion strength is measured at 25° C. and a peeling speed of 300 mm/min after bonded to a SUS 304BA plate at a temperature of from 40° C. to below 150° C. The second 180° peel adhesion strength is measured at 25° C. and a peeling speed of 300 mm/min after bonded to a SUS 304BA plate at 25° C. The first 180° peel adhesion strength is twice or more as high as the second 180° peel adhesion strength.

Abstract: An adhesive of the invention is used for polarizing plate to provide a transparent protective film on at least one side of a polarizer and comprises a resin solution comprising a polyvinyl alcohol-based resin, a crosslinking agent and a colloidal metal compound with an average particle size of 1 nm to 100 nm, wherein 200 parts by weight or less of the colloidal metal compound is added to 100 parts by weight of the polyvinyl alcohol-based resin. The adhesive for polarizing plate can reduce the occurrence of knicks.

Abstract: Disclosed is a pressure-sensitive adhesive tape or sheet which does not cause deterioration of an electrolytic solution even when immersed in the electrolytic solution and which can be smoothly unwound even after being wound. The pressure-sensitive adhesive tape or sheet includes a substrate and, on one surface thereof, a pressure-sensitive adhesive layer. The substrate has a wetting tension of from 30 to 35 mN/m in the surface to face the pressure-sensitive adhesive layer, where the wetting tension is measured by a method according to JIS K 6768:1999. The pressure-sensitive adhesive layer includes a pressure-sensitive adhesive containing substantially no polar group. A pressure-sensitive adhesive in the pressure-sensitive adhesive layer is preferably a rubber pressure-sensitive adhesive such as a polyisobutylene rubber and/or an isobutylene-isoprene rubber.

Abstract: Provided is a PSA tape for an electrochemical device, which can be peeled off rapidly and will not damage adherend materials or the PSA tape itself, or will not leave adhesive residues, when an adhesion defectiveness occurs during the manufacturing and processing of an electrochemical device, especially an electrolytic capacitor or a battery. The PSA tape comprises a substrate and a PSA layer placed on at least one face of the substrate. In the PSA tape, an anchoring strength of the PSA layer to the substrate is 7.0 N/10 mm or more.

Abstract: An adhesive of the invention is used for polarizing plate to provide a transparent protective film on at least one side of a polarizer and comprises a resin solution comprising a polyvinyl alcohol-based resin, a crosslinking agent and a colloidal metal compound with an average particle size of 1 nm to 100 nm, wherein 200 parts by weight or less of the colloidal metal compound is added to 100 parts by weight of the polyvinyl alcohol-based resin. The adhesive for polarizing plate can reduce the occurrence of knicks.

Abstract: An adhesive of the invention is used for polarizing plate to provide a transparent protective film on at least one side of a polarizer and comprises a resin solution comprising a polyvinyl alcohol-based resin, a crosslinking agent and a colloidal metal compound with an average particle size of 1 nm to 100 nm, wherein 200 parts by weight or less of the colloidal metal compound is added to 100 parts by weight of the polyvinyl alcohol-based resin. The adhesive for polarizing plate can reduce the occurrence of knicks.

Abstract: Provided is a laminate including a thermoplastic resin layer and a substrate, which has superior transparency, is resistant to “warping”, and is advantageous for the encapsulation and surface protection of opto-electronic devices. The laminate includes a substrate; a thermoplastic resin layer having a thickness of more than 200 ?m and less than or equal to 500 ?m; and a pressure-sensitive adhesive layer lying between the substrate and thermoplastic resin layer and bonding them to each other, in which the thermoplastic resin layer has a 180-degree peel strength of 1.0 N/25 mm or more with respect to the pressure-sensitive adhesive layer at 23° C. The laminate preferably has a total luminous transmittance of 80% or more.

Abstract: The present invention relates to a pressure-sensitive adhesive tape for battery containing: a substrate and a pressure-sensitive adhesive layer laminated on at least one surface of a substrate, in which the pressure-sensitive adhesive layer is laminated on the substrate, 0.5 mm or more inside from both edges of the substrate, and in which the pressure-sensitive adhesive tape has a 180° peeling pressure-sensitive adhesive force at 23° C. being 0.1 N/10 mm or more, and has a slippage distance after a pressure-sensitive adhesive layer side of the pressure-sensitive adhesive tape is attached to a phenolic resin plate (attaching area: 10 mm×20 mm), followed by applying a load of 500 g thereto at 40° C. for 1 hour being 0.2 mm or less.

Abstract: To provide a pressure-sensitive adhesive tape for an electrochemical device that has an extremely low water content, that is unlikely to lead to “adhesive protrusion”, and that is not removed even when it is in contact with an electrolytic solution. The pressure-sensitive adhesive tape for an electrochemical device of the present invention includes a pressure-sensitive adhesive layer composed of an acrylic pressure-sensitive adhesive on at least one side of a plastic base, and is characterized by including the pressure-sensitive adhesive layer having a gel content of 60% or more and a thickness of 1 to 15 ?m, and by having a water absorption rate of 0.2% or less after immersion in water at 23° C. for 24 hours.

Abstract: The present invention relates to a pressure-sensitive adhesive tape for battery containing: a substrate; and a pressure-sensitive adhesive layer provided on at least one side of the substrate, in which the pressure-sensitive adhesive tape has a thickness change ratio of 20% or less after immersion in a mixed solvent of ethylene carbonate/diethyl carbonate [former/latter (volume ratio)=1/1] at 60° C. for 8 hours; and a 180° peeling adhesive strength (against aluminum foil, peel temperature: 25° C., peel rate: 300 mm/minute) of 0.5 N/10 mm or more after the above immersion.

Abstract: Disclosed is to provide a pressure-sensitive adhesive optical film that has excellent durability wherein deterioration of an image display region is suppressed even under severe conditions such as heating caused by lighting of a backlight and to provide a method for producing the same. Disclosed is also to provide an image display using such a pressure-sensitive adhesive optical film. A pressure-sensitive adhesive optical film, comprising: an optical film; and a pressure-sensitive adhesive layer arranged on one or both sides of the optical film, wherein the pressure-sensitive adhesive layer is made from a pressure-sensitive adhesive composition comprising 100 parts by weight of a (meth)acrylic polymer which contains, as a monomer unit, at least 50% by weight of an alkyl (meth)acrylate ester having an alkyl group with 4 or more carbon atoms, and 0.02 to 2 parts by weight of a peroxide, and the pressure-sensitive adhesive layer has a thickness of 20 ?m or more.