Abstract: The present invention provides a conductive polymer fuse comprising a substrate having printed thereon poly(3,4-ethylenedioxythiophene)/poly(styrene-sulfonate) and one or more high conductivity connections, wherein the conductive fuse is encapsulated with an encapsulant. Methods for producing the inventive conductive polymer fuses are also provided. Such conductive polymer fuses may find use in improving printed electronic devices by protecting those devices against short circuits.

Abstract: The invention relates to a method for printing objects, comprising the step of application of a printing ink by means of screen printing, wherein the printing ink comprises a polyisocyanate A) and/or a polyisocyanate prepolymer B), an at least difunctional compound C) which is reactive towards isocyanate groups and furthermore a catalyst D) which cap be activated by increasing the temperature. It also relates to the use of a corresponding reaction, mixture as a printing ink in screen printing processes and to an electromechanical converter having a polymer layer produced, by a method according to the invention.

Abstract: The invention relates to a multi-layer composite (2, 2.1, 2.2, 18) comprising at least two electroactive layers (4, 6) positioned between a first electrically conductive layer (12) and a second electrically conductive layer (14), wherein at least one electrically conductive sub-layer (8) is positioned between the at least two electroactive layers (4, 6), and wherein at least one of the at least two electroactive layers (4, 6) is a piezo layer (6), wherein at least one other of the at least two electroactive layers (4, 6) is a dielectric elastomer layer (4).

Abstract: An energy conversion apparatus configured to convert energy from a mechanical energy source into electrical energy is provided. The energy conversion apparatus includes a transducer comprising a dielectric elastomer module made of stretchable electroactive polymer material. The dielectric elastomer module comprising at least one dielectric elastomer film layer is disposed between at least first and second electrodes. A transmission coupling mechanism is configured to couple the mechanical energy source and is operatively attached to the transducer to cyclically strain and relax the transducer in response to the mechanical energy acting on the transmission coupling mechanism.

Abstract: The present invention relates to electromechanical converters at least comprising a polymer layer composite with voids (5) formed therein, wherein the polymer layer composite at least comprises a polymer layer base element (1) comprising a carrier layer (1a) having a softening temperature TgA and en electret layer (1b), extensively bonded thereto, having a softening temperature TgE, wherein TgA>TgE, and a second polymer layer element (2), wherein the polymer layer base element (1) is at least partially bonded with its electret layer (1b) to the second polymer layer element (2) to form voids (5). The invention relates further to a process for the production of an electromechanical, for example piezoelectric, converter and to the use thereof.

Abstract: The invention relates to an electromechanical converter, comprising at least one dielectric elastomer layer (1), electret layers (4, 5), and electrodes (2, 3), wherein the dielectric elastomer layer (1) is contacted by the at least one electret layer (4), the at least one electret layer (4) carries an electric charge and is contacted by a first electrode (2) and a second electrode (3) is arranged on the side of the dielectric elastomer layer (1) opposite the first electrode (2). The invention further relates to a method for producing same, to the use thereof, and to the generation of electrical energy in which the converter according to the invention can be applied. Operation of the converter for generating energy is possible in the planar mode (d31 mode).

Abstract: The present invention relates to a piezoelectric polymer film element, in particular a polymer foil, comprising a polymer matrix, wherein hollow particles are arranged in the polymer matrix, and a process for the production of such a piezoelectric polymer film element, comprising the steps: A) provision of hollow particles and B) introduction of the hollow particles into a polymer matrix and C) shaping of the polymer matrix as a polymer film. The invention furthermore relates to an electromechanical converter comprising at least one first polymer film which comprises hollow particles as fillers.