Abstract: A rheology control agent for water-based resins may include: 1 mass % or more and 30 mass % or less of an active matter (X) containing a diamide compound (A) and/or a hydrogenated castor oil (A?), the diamide compound (A) being obtained by reacting a diamine component (A1) selected from the group consisting of diamines having 2 to 12 carbon atoms with a monocarboxylic acid component (A2) selected from the group consisting of monocarboxylic acids having at least a hydroxyl group; and 5 mass % or more and 99 mass % or less of a first solvent (C) having at least one substituent selected from the group consisting of a hydroxyl group, an ether group, an ester group, an amide group and a ketone group.

Abstract: A dielectric elastomer transducer Al includes a dielectric elastomer layer 11 and a pair of electrode layers 12 sandwiching the dielectric elastomer layer 11. The electrode layers 12 contain ground carbon particles derived from carbon nanotubes. This configuration ensures both stretchability and electrical conductivity.

Abstract: A converter includes a first electrode, a second electrode, a dielectric elastomer film, and a high-dielectric-constant film. The dielectric elastomer film is disposed between the first electrode and the second electrode, and has relative dielectric constant ?1. The high-dielectric-constant film is disposed at one or both of: a location between the first electrode and the dielectric elastomer film; and a location between the second electrode and the dielectric elastomer film. The high-dielectric-constant film has relative dielectric constant ?2 that is higher than the relative dielectric constant ?1.