Abstract: An interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, which is excellent in followability to steps of a decorative printing portion or wiring upon filling of an interlayer space (lamination) and also excellent in defoaming properties to release air bubbles entrapped during filling of an interlayer space (lamination) or air bubbles left near the steps, which is less likely to be whitened and less likely to deteriorate an ITO film even under a high-temperature and high-humidity environment. The present invention also aims to provide a laminate produced using the interlayer filling material for a touch panel. The interlayer filling material includes: a polyvinyl acetal; a plasticizer; and an organic acid.

Abstract: The present invention aims to provide a polyvinyl acetal resin composition that is moldable by an extrusion method and capable of exhibiting excellent heat resistance after molding, an adhesive sheet containing the polyvinyl acetal resin composition, and a method for producing the adhesive sheet. The present invention relates to a polyvinyl acetal resin composition including: a polyvinyl acetal; a reactive diluent; and a photopolymerization initiator, the polyvinyl acetal resin composition having a storage modulus G? at 200° C. before irradiation with light of 8×104 Pa or lower and a storage modulus G? at 200° C. after irradiation with light of 8×103 Pa or higher, with the storage modulus G? at 200° C. after irradiation with light being higher than the storage modulus G? at 200° C. before irradiation with light.

Abstract: The present invention aims to provide a filling-bonding material that is suitably used to fill a space between parts, while bonding the parts, in optical devices in various shapes not limited to flat shapes. The present invention also aims to provide a protective sheet-equipped filling-bonding material, a laminate, an optical device, and a protective panel for an optical device each including the filling-bonding material. Provided is a filling-bonding material having a shape with an uneven thickness.

Abstract: A piezoelectric sensor including: a piezoelectric sheet; a first ground electrode integrally laminated on a first side of the piezoelectric sheet and having a first cutout section; a signal electrode integrally laminated on a second side of the piezoelectric sheet and having a third cutout section; and a second ground electrode integrally laminated on the signal electrode so as to be electrically insulated from the signal electrode and having a second cutout section. The cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are at least partially overlapped with one another in a thickness direction of the piezoelectric sheet. A portion of the piezoelectric sheet exposed from a portion where the cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are overlapped with one another serves as an exposed section.

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, is less likely to cause cracks or breakage in a surface protection panel or a glass substrate, and enables production of a touch panel laminate that is not likely to display images with color irregularity. The present invention also aims to provide a touch panel laminate produced using the interlayer filling material for a touch panel.

Abstract: The present invention aims to provide a filling-bonding material that is suitably used to fill a space between parts, while bonding the parts, in optical devices in various shapes not limited to flat shapes. The present invention also aims to provide a protective sheet-equipped filling-bonding material, a laminate, an optical device, and a protective panel for an optical device each including the filling-bonding material. Provided is a filling-bonding material having a shape with an uneven thickness.

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, is excellent in followability to steps, and enables production of a touch panel laminate that is less likely to suffer cracks or breakage in a surface protection panel or a glass substrate. The present invention also aims to provide a touch panel laminate produced using the interlayer filling material for a touch panel.

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant and enables production of a touch panel laminate that is less likely to suffer cracks or breakage in a surface protection panel or a glass substrate. The present invention also aims to provide a touch panel laminate produced using the interlayer filling material for a touch panel.

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, is less likely to cause cracks or breakage in a surface protection panel or a glass substrate, and enables production of a touch panel laminate that is not likely to display images with color irregularity. The present invention also aims to provide a touch panel laminate produced using the interlayer filling material for a touch panel.

Abstract: The present invention aims to provide a polyvinyl acetal resin composition that is moldable by an extrusion method and capable of exhibiting excellent heat resistance after molding, an adhesive sheet containing the polyvinyl acetal resin composition, and a method for producing the adhesive sheet. The present invention relates to a polyvinyl acetal resin composition including: a polyvinyl acetal; a reactive diluent; and a photopolymerization initiator, the polyvinyl acetal resin composition having a storage modulus G? at 200° C. before irradiation with light of 8×104 Pa or lower and a storage modulus G? at 200° C. after irradiation with light of 8×103 Pa or higher, with the storage modulus G? at 200° C. after irradiation with light being higher than the storage modulus G? at 200° C. before irradiation with light.

Abstract: The present invention aims to provide an interlayer filling material for a touch panel which is used for filling an interlayer space between a touch panel and another component or an interlayer space between transparent conductive films included in the touch panel in production of a personal digital assistant, which is excellent in followability to steps of a decorative printing portion or wiring upon filling of an interlayer space (lamination) and also excellent in defoaming properties to release air bubbles entrapped during filling of an interlayer space (lamination) or air bubbles left near the steps, which is less likely to be whitened and less likely to deteriorate an ITO film even under a high-temperature and high-humidity environment. The present invention also aims to provide a laminate produced using the interlayer filling material for a touch panel.

Abstract: The present invention provides an electret sheet which can maintain a high generated voltage even if a large amount of pressure has been applied. Disclosed is an electret sheet of the present invention including an electrically charged propylene-based resin foam sheet which contains a crosslinked propylene-based resin that includes a propylene-?-olefin random copolymer having a weight average molecular weight of 370,000 to 420,000 at a proportion of 60% by weight or more, and has a gel fraction of 30% to 50% by weight, and in which the average thickness is 90 to 150 ?m, and the average number of foam cells in the thickness direction is 2 to 4 cells.

Abstract: The present invention aims to provide a polarizing plate with a transparent adhesive which is incorporated in a touch panel used in a personal digital assistant or the like, which is less likely to cause adhesive deposits on a punching blade during a punching process, and which is also less likely to have bubbles formed on an adhering surface of the transparent adhesive to the polarizing plate even with exposure to high temperature and high humidity. The present invention also aims to provide a touch panel incorporating the polarizing plate with a transparent adhesive. The present invention relates to a polarizing plate with a transparent adhesive, including: a polarizing plate; and a transparent adhesive containing a plasticized polyvinyl acetal resin and adhering to the polarizing plate, the polarizing plate having a contact angle with water in conformity with JIS R-3257 of less than 50° on a surface to which the transparent adhesive adheres.

Abstract: The present invention provides an electret sheet which can maintain a high generated voltage even if a large amount of pressure has been applied. Disclosed is an electret sheet of the present invention including an electrically charged propylene-based resin foam sheet which contains a crosslinked propylene-based resin that includes a propylene-?-olefin random copolymer having a weight average molecular weight of 370,000 to 420,000 at a proportion of 60% by weight or more, and has a gel fraction of 30% to 50% by weight, and in which the average thickness is 90 to 150 ?m, and the average number of foam cells in the thickness direction is 2 to 4 cells.

Abstract: A piezoelectric sensor including: a piezoelectric sheet; a first ground electrode integrally laminated on a first side of the piezoelectric sheet and having a first cutout section; a signal electrode integrally laminated on a second side of the piezoelectric sheet and having a third cutout section; and a second ground electrode integrally laminated on the signal electrode so as to be electrically insulated from the signal electrode and having a second cutout section. The cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are at least partially overlapped with one another in a thickness direction of the piezoelectric sheet. A portion of the piezoelectric sheet exposed from a portion where the cutout sections of the signal electrode, the first ground electrode, and the second ground electrode are overlapped with one another serves as an exposed section.

Abstract: Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties.

Abstract: The present invention provides an interlayer film for laminated glass which enables production of laminated glass having a high visible transmittance and excellent heat-shielding properties, and enables the laminated glass to retain the high visible transmittance for a long period of time; and provides laminated glass including the interlayer film. An interlayer film for laminated glass according to the present invention includes a first heat-shielding layer and at least one second heat-shielding layer. The first heat-shielding layer includes a thermoplastic resin and at least one component selected from a phthalocyanine compound, a naphthalocyanine compound, and an anthracocyanine compound. The second heat-shielding layer includes a thermoplastic resin and metal oxide particles.

Abstract: The present invention provides an interlayer film for laminated glass which enables production of laminated glass having a high visible transmittance and excellent heat-shielding properties, and enables the laminated glass to retain the high visible transmittance for a long period of time; and provides laminated glass including the interlayer film. An interlayer film for laminated glass according to the present invention includes a first heat-shielding layer and at least one second heat-shielding layer. The first heat-shielding layer includes a thermoplastic resin and at least one component selected from a phthalocyanine compound, a naphthalocyanine compound, and an anthracocyanine compound. The second heat-shielding layer includes a thermoplastic resin and metal oxide particles.

Abstract: Provided is an electret having high piezoelectric properties. An electret sheet of the invention is characterized in that it comprises a synthetic resin sheet is electrified by injecting electric charges thereinto, that the synthetic resin sheet comprises two types of synthetic resins incompatible with each other, and that these synthetic resins form a phase separated structure and are cross-linked through a polyfunctional monomer. Therefore, positive and negative charges in an apparently polarized state are present in the interfacial portions between the two types of synthetic resins incompatible with each other. By applying an external force to the electret sheet to deform it, the relative positions of these positive and negative charges are changed, and these changes cause a favorable electrical response. Therefore, the electret sheet has high piezoelectric properties.

Abstract: The present invention provides an interlayer film for laminated glass which has high heat-shielding properties and a high visible transmittance, and further has excellent light resistance, resulting in long-term retention of the high visible transmittance. The interlayer film for laminated glass of the present invention has a single-layer structure or a laminated structure of two or more layers. The interlayer film for laminated glass is provided with a first layer that contains a thermoplastic resin and tungsten oxide particles. In cases where the interlayer film for laminated glass has a single-layer structure, the first layer further contains an ultraviolet shielding agent.