Abstract: A method of producing a laminated structure includes: a laminated structure that has high adhesion strength between resin layers and that is excellent in respect of working efficiency, the method including: a lamination step of preparing an intermediate laminate in which a first resin layer and a second resin layer are laminated with an adhesive resin layer interposed between the first resin layer and the second resin layer; a first molding step of molding the intermediate laminate; and a second molding step of forming a resin member on a surface of the molded intermediate laminate by injection molding using a raw material resin to obtain a laminated structure in which at least a part of the adhesive resin layer is thermally cured to be an adhesion layer. An adhesive resin composition constituting the adhesive resin layer contains at least an acrylic-based polymer, a crosslinking agent, and a thermal polymerization initiator.

Abstract: A method of producing a molded article includes: laminating an adhesive sheet including an acrylic-based polymer and a polymerization initiator onto resin film, to produce a resin laminate; and covering an adherend with the resin film while the resin laminate is pressed against the adherend, and the resin film is stretched following a surface shape of the adherend. In planar view, the resin laminate is larger than the adherend. The covering step includes heating the resin laminate at 100° C. or higher and 180° C. or lower, superposing the resin laminate on the adherend planarly and pressing the resin laminate and the adherend under a reduced pressure environment, and then applying pressure to an environment opposite to the adherend with respect to the resin film. The adhesive sheet has an exothermic peak of 100° C. or higher and 180° C. or lower in differential scanning calorimetry at a temperature raising rate of 10° C./min.

Abstract: 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.

Abstract: The present invention provides an adhesive resin layer and an adhesive resin film which can prevent generation of air bubbles even when adhered to a substrate having a high level difference, and in which even after thermal endurance and after wet thermal endurance, of a laminate obtained by laminating a substrate, an adhesive resin layer, and a substrate in an order, air bubbles are not generated, durability is good, and transparency can be maintained. 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, urethane acrylate, and a thermopolymerization initiator, and may optionally contain an acrylic-based monomer, 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.

Abstract: The present invention provides an adhesive resin layer and an adhesive resin film which can prevent generation of air bubbles even when they are thermally deformed after adhering to a substrate, and have good followability to deformation of a substrate of a laminate in which a substrate, an adhesive resin layer, and a substrate are laminated in an order. More particularly, the present invention is a monolayered adhesive resin layer comprising an acrylic-based adhesive resin composition, wherein the adhesive resin composition contains at least an acrylic-based polymer, an acrylic-based monomer or an acrylic-based oligomer, and a thermopolymerization initiator, the adhesive resin layer has pressure sensitive adhesiveness on both surfaces at an ambient temperature, and in differential scanning calorimetry at a temperature raising rate of 10° C./min, heat generation is observed at 80° C. or higher, and at least one peak is confirmed between 120° C. and 210° C.

Abstract: A method of producing a laminated structure includes: a laminated structure that has high adhesion strength between resin layers and that is excellent in respect of working efficiency, the method including: a lamination step of preparing an intermediate laminate in which a first resin layer and a second resin layer are laminated with an adhesive resin layer interposed between the first resin layer and the second resin layer; a first molding step of molding the intermediate laminate; and a second molding step of forming a resin member on a surface of the molded intermediate laminate by injection molding using a raw material resin to obtain a laminated structure in which at least a part of the adhesive resin layer is thermally cured to be an adhesion layer. An adhesive resin composition constituting the adhesive resin layer contains at least an acrylic-based polymer, a crosslinking agent, and a thermal polymerization initiator.

Abstract: A method of producing a molded article includes: laminating an adhesive sheet including an acrylic-based polymer and a polymerization initiator onto resin film, to produce a resin laminate; and covering an adherend with the resin film while the resin laminate is pressed against the adherend, and the resin film is stretched following a surface shape of the adherend. In planar view, the resin laminate is larger than the adherend. The covering step includes heating the resin laminate at 100° C. or higher and 180° C. or lower, superposing the resin laminate on the adherend planarly and pressing the resin laminate and the adherend under a reduced pressure environment, and then applying pressure to an environment opposite to the adherend with respect to the resin film The adhesive sheet has an exothermic peak of 100° C. or higher and 180° C. or lower in differential scanning calorimetry at a temperature raising rate of 10° C./min.

Abstract: The present invention provides an adhesive resin layer and an adhesive resin film which can prevent generation of air bubbles even when they are thermally deformed after adhering to a substrate, and have good followability to deformation of a substrate of a laminate in which a substrate, an adhesive resin layer, and a substrate are laminated in an order. More particularly, the present invention is a monolayered adhesive resin layer comprising an acrylic-based adhesive resin composition, wherein the adhesive resin composition contains at least an acrylic-based polymer, an acrylic-based monomer or an acrylic-based oligomer, and a thermopolymerization initiator, the adhesive resin layer has pressure sensitive adhesiveness on both surfaces at an ambient temperature, and in differential scanning calorimetry at a temperature raising rate of 10° C./min, heat generation is observed at 80° C. or higher, and at least one peak is confirmed between 120° C. and 210° C.

Abstract: The present invention provides an adhesive resin layer and an adhesive resin film which can prevent generation of air bubbles even when adhered to a substrate having a high level difference, and in which even after thermal endurance and after wet thermal endurance, of a laminate obtained by laminating a substrate, an adhesive resin layer, and a substrate in an order, air bubbles are not generated, durability is good, and transparency can be maintained. 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, urethane acrylate, and a thermopolymerization initiator, and may optionally contain an acrylic-based monomer, 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.

Abstract: 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.

Abstract: Eicosapentaenoic acid or its ester is separated and purified from a mixture containing a highly unsaturated fatty acid or its ester effectively at low cost by a process, which comprises developing the mixture by a mixed solvent of an ether solvent and a hydrocarbon solvent, using a column filled with a silica gel having a particle diameter of 1-100 micrometers.

Abstract: A process of selectively separating and purifying eicosapentaenoic and docosahexaenoic acids or the esters thereof from a mixture comprising a highly unsaturated fatty acid or the derivative thereof, which comprises the steps of: flowing an aqueous medium comprising a silver salt through a column filled with a diatomaceous earth to carry the silver salt on the diatomaceous earth; flowing a solvent solution of a mixture comprising the highly unsaturated fatty acid or the derivative thereof through the silver salt-carried diatomaceous earth in the column; and flowing a developing solvent through the column.

Abstract: Eicosapentaenoic acid or its ester is separated and purified from a mixture containing a highly unsaturated fatty acid or its ester effectively at low cost by a process, which comprises developing the mixture by a mixed solvent of an ether solvent and a hydrocarbon solvent, using a column filled with a silica gel having a particle diameter of 1-100 micrometers.