The present invention provides an adhesive resin layer, which can prevent generation of air bubbles even when adhered to a substrate having a high level difference, and can maintain transparency, an adhesive resin film, a laminate, and a method of producing a laminate. More specifically, the present invention is a monolayered adhesive resin layer comprising an acrylic-based adhesive resin composition having transparency, wherein the adhesive resin composition contains an acrylic-based polymer, an acrylic-based monomer, and a thermopolymerization initiator, and an adhesive resin layer has pressure sensitive adhesiveness on both surfaces at an ambient temperature, and can be thermally cured by heating at a temperature of 100 to 250 C. and a time of 30 seconds to 10 minutes.

A pressure-sensitive adhesive sheet according to the present invention includes an irradiation-curable acrylic pressure-sensitive adhesive layer. The acrylic pressure-sensitive adhesive layer includes an acrylic polymer and a multifunctional acrylic oligomer. The acrylic pressure-sensitive adhesive layer, after curing, has a Young's modulus of 500 kPa to 10000 kPa at 23 C. The acrylic pressure-sensitive adhesive layer, after curing, has an adhesive strength of 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have an adhesive strength of typically 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have a Young's modulus of typically 30 kPa to 200 kPa at 23 C.

A pressure-sensitive adhesive sheet according to the present invention includes an irradiation-curable acrylic pressure-sensitive adhesive layer. The acrylic pressure-sensitive adhesive layer includes an acrylic polymer and a multifunctional acrylic oligomer. The acrylic pressure-sensitive adhesive layer, after curing, has a Young's modulus of 500 kPa to 10000 kPa at 23 C. The acrylic pressure-sensitive adhesive layer, after curing, has an adhesive strength of 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have an adhesive strength of typically 3.0 N/20 mm or more. The acrylic pressure-sensitive adhesive layer before curing may have a Young's modulus of typically 30 kPa to 200 kPa at 23 C.

An adhesive composition comprising (a) a (meth)acrylic polymer, (b) a compound having at least two (meth)acryloyl groups, (c) a polymerization initiator and (d) a filler.

An adhesive composition comprising (a) a (meth)acrylic polymer, (b) a compound having at least two (meth)acryloyl groups, (c) a polymerization initiator and (d) a filler.

Provided is a foam sheet showing little change in dielectric constant even when exposed under a high-humidity condition. The foam sheet of the present invention includes: a foam layer; and a pressure-sensitive adhesive layer arranged on at least one side of the foam layer, wherein the foam sheet has an impact absorbability change amount [(QP)100]/P of 10 (%) or less, where P (N) represents impact absorbability of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 23 C. and a humidity of 50% for 2 hours, and Q (N) represents impact absorbability of the foam layer immediately after the foam sheet has been left at rest under conditions of a temperature of 60 C. and a humidity of 95% for 24 hours.

An exemplary embodiment of the present invention provides: an adhesive coating composition enabling adherence (coupling) of an electrical steel sheet without using conventional coupling methods such as welding, clamping, and interlocking; an electrical steel sheet laminate to which the same is applied; and a method for manufacturing the same.

An adhesive coating composition for an electrical steel sheet, according to an exemplary embodiment of the present invention, includes, on the basis of 100 wt % of total solids: 15 to 70 wt % of a first composition containing an organic resin and an organic/inorganic composite in which inorganic nanoparticles are substituted for an organic resin; 20 to 80 wt % of a second composition containing a metal phosphate and phosphoric acid; and 1 to 10 wt % of a coupling agent.

The coupling agent may contain one or more of a silane-based coupling agent, a titanate-based coupling agent, and an aluminate-based coupling agent.

Provided is photo-sintering nano ink. The photo-sintering nano ink includes a photo-sintering precursor including a conductive nano particle and an oxide film surrounding the conductive nano particle, polymer binder resin, and an adhesive.

Provided is a foam sheet that can raise an electrostatic capacitance at the time of compression, and hence can improve sensitivity when used for an electrostatic capacitance sensor. The foam sheet includes: a foam layer; and a pressure-sensitive adhesive layer arranged on at least one side of the foam layer, wherein the foam sheet has a dielectric constant increase amount Q-P at 10% compression of 0.2 (F/m) or more, where P (F/m) represents a dielectric constant of the foam sheet immediately after the foam sheet has been left at rest under conditions of a temperature of 23 C. and a humidity of 50% for 2 hours, and Q (F/m) represents a dielectric constant of the foam sheet at a time when the foam sheet is compressed by 10% immediately after being left at rest under the conditions of a temperature of 23 C. and a humidity of 50% for 2 hours.

An adhesive sheet and a laminated sheet wherein stress applied to a member sheet is reduced in the laminated sheet formed by laminating the member sheet and the adhesive sheet, and the adhesive sheet and the laminated sheet do not break or delaminate even though a folding operation is conducted under low temperature and high temperature conditions are provided, and an adhesive sheet wherein the restorability when the folded adhesive sheet is opened is good is further provided. An adhesive sheet satisfying the following requirements (1) to (2) is proposed. (1) A storage shear modulus at 80 C. (G (80 C.)) obtained by dynamic viscoelasticity measurement in shearing mode at a frequency of 1 Hz is 1 kPa or more and less than 20 kPa, and a loss tangent at 80 C. (tan (80 C.)) is less than 0.50. (2) A storage shear modulus at 20 C. (G (20 C.)) obtained by dynamic viscoelasticity measurement in shearing mode at a frequency of 1 Hz is 1 kPa or more and less than 1000 kPa.