Abstract: A dielectric film which has high electrical resistance and excellent durability and a process for producing the dielectric film are provided. Also provided is a transducer which has large displacement and excellent durability. The dielectric film includes a three-dimensional crosslinked body that is synthesized from an organic metal compound, a rubber polymer that is other than a polydimethyl siloxane and has a functional group that is reactive with the organic metal compound, and an inorganic filler that has a functional group that is reactive with the organic metal compound. The transducer is configured by interposing the dielectric film between at least a pair of electrodes.

Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. (a) The cation (a1) is an imidazolium or quaternary ammonium cation, and (a2) comprises a reactive group that consists of an alkoxysilyl or phosphonate group. (b) The anion (b1) is a sulfonate, sulfonylimide, or nitrobenzoate anion.

Abstract: A cardiopulmonary resuscitation support device for assisting a rescuer with cardiopulmonary resuscitation using chest compressions, including: a pressure detecting device provided with a pressure sensor including a pressure sensing part which is configured to be overlapped on a chest, the pressure sensing part having a sheet form and being capable of flexural deformation in a flexible manner; and a displacement detecting device provided with a displacement sensor to detect a displacement of a hand of the rescuer compressing the chest, the displacement detecting device being configured to be retained by the hand of the rescuer at a part away from a chest compression surface.

Abstract: A dielectric film includes an elastomer and nanoparticles dispersed in the elastomer while chemically bound to the elastomer. The nanoparticles have cyano groups and are manufactured by a sol-gel process using an organometallic compound. A method for manufacturing a dielectric film includes: producing a chelate compound of an organometallic compound; producing a sol of metallic oxide particles having cyano groups by adding a silane coupling agent having a cyano group, an organic solvent, and water to the chelate compound; preparing a mixed solution by mixing the sol of the metallic oxide particles having cyano groups and a polymer solution containing a rubber polymer having a functional group capable of reacting with a hydroxy group; and forming a dielectric film by applying the mixed solution to a substrate and by curing a coating film.

Abstract: An ion-immobilized metal oxide particle includes a metal oxide particle and an anion that itself includes a) a reactive group that consists of an alkoxysilyl group and b) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group, the anion being immobilized to the metal oxide particle via a silanol group derived from the reactive group. An elastomer includes the ion-immobilized metal oxide particle, and a transducer includes the elastomer.

Abstract: A dielectric film which has high electrical resistance and excellent durability and a process for producing the dielectric film are provided. Also provided is a transducer which has large displacement and excellent durability. The dielectric film includes a three-dimensional crosslinked body that is synthesized from an organic metal compound, a rubber polymer that is other than a polydimethyl siloxane and has a functional group that is reactive with the organic metal compound, and an inorganic filler that has a functional group that is reactive with the organic metal compound. The transducer is configured by interposing the dielectric film between at least a pair of electrodes.

Abstract: A transducer includes a high-resistance layer that includes an elastomer and has a volume resistivity of 1012 ?·cm or more, a pair of electrodes that are arranged on both a front side and a back side of the high-resistance layer and include a binder and a conductive material, and a medium-resistance layer that is interposed between the electrode and the high-resistance layer on at least one of the front side and the back side of the high-resistance layer, includes an elastomer, and has a volume resistivity that is smaller than the volume resistivity of the high-resistance layer by two or more digits. In the transducer, the medium-resistance layer is interposed between at least one electrode and the high-resistance layer to take advantage of the resistance to dielectric breakdown originally possessed by the high-resistance layer, thereby obtaining a larger force by applying a higher voltage.

Abstract: A cardiopulmonary resuscitation support device including: a pressure sensing part configured to overlap a chest and including a flexible dielectric layer formed of an elastomer, and a flexible first and second electrodes formed of a conductive elastomer overlapped on two surfaces of the dielectric layer; a detection part provided at a facing part of the two electrodes to detect changes in electrostatic capacity; a power supply device to apply measurement voltage and a detection member to obtain the electrostatic capacity detected by the detection part connected to the electrodes; a processing member to calculate at least one piece of evaluation information among a number of compressions, a number of compressions per unit time, a pressing depth during compression, a pressing depth during release, and a ratio of a compression time, based on a detection value from the detection member.

Abstract: A dielectric film includes an elastomer and nanoparticles dispersed in the elastomer while chemically bound to the elastomer. The nanoparticles have cyano groups and are manufactured by a sol-gel process using an organometallic compound. A method for manufacturing a dielectric film includes: producing a chelate compound of an organometallic compound; producing a sol of metallic oxide particles having cyano groups by adding a silane coupling agent having a cyano group, an organic solvent, and water to the chelate compound; preparing a mixed solution by mixing the sol of the metallic oxide particles having cyano groups and a polymer solution containing a rubber polymer having a functional group capable of reacting with a hydroxy group; and forming a dielectric film by applying the mixed solution to a substrate and by curing a coating film.

Abstract: An ion-immobilized metal oxide particle includes a metal oxide particle and an anion that itself includes a) a reactive group that consists of an alkoxysilyl group and b) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group, the anion being immobilized to the metal oxide particle via a silanol group derived from the reactive group. An elastomer includes the ion-immobilized metal oxide particle, and a transducer includes the elastomer.

Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.

Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. (a) The cation (a1) is an imidazolium or quaternary ammonium cation, and (a2) comprises a reactive group that consists of an alkoxysilyl or phosphonate group. (b) The anion (b1) is a sulfonate, sulfonylimide, or nitrobenzoate anion.

Abstract: A reactive ionic liquid to be used as an ionic component that is contained in an ion-containing layer in a transducer arranged in contact with a high-resistance layer as a dielectric layer of the transducer, and is restrained from migrating from the ion-containing layer to the high-resistance layer on application of a voltage is provided. The reactive ionic liquid comprises an ion pair that consists of an anion and a cation. In the reactive ionic liquid, (a) the anion comprises (a1) a reactive group that consists of an alkoxysilyl group and (a2) an anionic group consisting of a carboxylate (—COO?) group or a sulfonate (—SO3?) group. (b) The cation (b1) consists of an imidazolium, ammonium, pyrrolidinium, morpholinium, or phosphonium cation, and (b2) does not comprise an N—H group or a P—H group.

Abstract: A transducer includes a high-resistance layer that includes an elastomer and has a volume resistivity of 1012 ?·cm or more, a pair of electrodes that are arranged on both a front side and a back side of the high-resistance layer and include a binder and a conductive material, and a medium-resistance layer that is interposed between the electrode and the high-resistance layer on at least one of the front side and the back side of the high-resistance layer, includes an elastomer, and has a volume resistivity that is smaller than the volume resistivity of the high-resistance layer by two or more digits. In the transducer, the medium-resistance layer is interposed between at least one electrode and the high-resistance layer to take advantage of the resistance to dielectric breakdown originally possessed by the high-resistance layer, thereby obtaining a larger force by applying a higher voltage.

Abstract: A dielectric film which has high electrical resistance and excellent durability and a process for producing the dielectric film are provided. Also provided is a transducer which has large displacement and excellent durability. The dielectric film includes a three-dimensional crosslinked body that is synthesized from an organic metal compound, a rubber polymer that is other than a polydimethyl siloxane and has a functional group that is reactive with the organic metal compound, and an inorganic filler that has a functional group that is reactive with the organic metal compound. The transducer is configured by interposing the dielectric film between at least a pair of electrodes.