Abstract: The invention relates to a flexible hose (10), which has a corrugated-profile inner hose (12) for conveying media along a longitudinal axis (18) and is surrounded, on an outer face (20), by a substantially flat covering (22), and is provided, on at least one of its two ends, with a connection piece. An electrical conductor (30) is situated radially between the inner hose and the covering, which conductor extends from one end to the other end of the inner hose and terminates in the connection piece to provide electrical contact. The electrical conductor is formed by a resilient flat-conductor assembly (32) which extends along the hose in an electrically insulated manner in parallel with the longitudinal axis and is held on the corrugated profile (34) of the inner hose at least by the covering. The invention also relates to a method for producing such a hose on a large scale.

Abstract: A flexible hose (10), in particular a vacuum cleaner hose, has a wavily profiled inner hose (12), which is surrounded by a substantially smooth sheathing (14) and is provided with a hollow connection piece (18) at at least one end (16). The inner hose with the sheathing extends into the connection piece, the sheathing being fastened to the inner hose by a sheath securing member (20). Also attached to the inner hose is a retaining sleeve (24), which forms a first stop face (28) for the connection piece and has a second stop face (30) for a connecting piece securing member (32) which is fastened to the connection piece in order to fix the latter in a tension- and compression-resistant manner with regard to the inner hose via the retaining sleeve.

Abstract: The present invention relates to a method for bonding substrates of the same or different type using two-component structural adhesives on the basis of aliphatic polyisocyanates and polyaspartic acid esters, and to a two-component structural adhesive, which contains said two components and has a high strength when hardened.

Abstract: In a method for producing a coiled tubing (RW) from a thermoplastic material, in a first shaping step a tubular extrudate (EX) is extruded via an annular nozzle gap (16) in an extruder (12) before, in a second shaping step directly following the first shaping step, the extrudate which is drawn down from the nozzle gap and is still plastically deformable is calibrated in a shaping device (18) in order to obtain a geometrically defined profile cross section (PQ) and is shaped into the coiled tubing, whereupon the coiled tubing having the geometrically determined profile cross section solidifies. This method allows for continuous production of the coiled tubing with a new, high quality in respect of dimensional and shape tolerances on the profile cross section of the coiled tubing. The invention also relates to a device (10) for producing such a coiled tubing.

Abstract: A flexible hose (10), for a vacuum cleaner, has a wall (12), an inner side (14) of which delimiting a cavity (16) for conveying media and at least one outer side (18) of which having a profiling (20) which has, in section, seen along a longitudinal axis (22) of the hose, elevations (24) and depressions (26). On the outer side of the wall, at least one electrically conductive track (28) is provided which extends around the wall and is in electrical contact with at least one electrically conductive thread (30) which electrically connects ends of the hose facing away from one another. The electrically conductive thread is fastened to the outer side in a manner extending substantially along the longitudinal axis of the hose and transverse to the electrically conductive track.

Abstract: The present invention relates to a method for bonding substrates of the same or different type using two-component structural adhesives on the basis of aliphatic polyisocyanates and polyaspartic acid esters, and to a two-component structural adhesive, which contains said two components and has a high strength when hardened.

Abstract: A hardenable epoxy-free reaction resin system, in particular a casting compound, lacquer, laminating or impregnating resin, which contains an epoxy-free resin component, a mineral filler, and polymer particles dispersed in the resin component. The filler includes nanoparticles.

Abstract: An arrangement is proposed for forming a piezoelectric actuator, which has at least one piezoelectric element that in each case consists of a multi-layer structure of piezoelectric-layers, wherein internal electrodes arranged between the piezoelectric-layers in the direction of the build-up of the layers of the piezoelectric element, have an electrical voltage of different polarity alternately applied to them. Around the piezoelectric element, or in the case of multiple piezoelectric elements positioned in series in the activation direction, around the piezoelectric elements, and at least partially around the actuator head and the actuator foot there is arranged a covering system made from at least one layer of an insulating material. The at least one layer encloses the joints between the piezoelectric element or elements and the actuator head and the actuator foot, forming a seal.

Abstract: An arrangement is proposed for forming a piezoelectric actuator, which has at least one piezoelectric element that in each case consists of a multi-layer structure of piezoelectric-layers, wherein internal electrodes arranged between the piezoelectric-layers in the direction of the build-up of the layers of the piezoelectric element, have an electrical voltage of different polarity alternately applied to them. Around the piezoelectric element, or in the case of multiple piezoelectric elements positioned in series in the activation direction, around the piezoelectric elements, and at least partially around the actuator head and the actuator foot there is arranged a covering system made from at least one layer of an insulating material. The at least one layer encloses the joints between the piezoelectric element or elements and the actuator head and the actuator foot, forming a seal.

Abstract: The present invention relates to molding compositions comprising A) from 40 to 99% by weight of at least one epoxy resin, B) from 1 to 60% by weight of at least one polyarylene ether sulfone containing side- or end-groups selected from the group consisting of carboxy groups and anhydride groups, C) from 0 to 60% by weight of at least one polyarylene ether sulfone containing essentially no side- or end-groups selected from the group consisting of carboxy and anhydride groups, D) from 0 to 60% by weight of at least one filler, and E) from 0 to 40% by weight of one or more various additives, where the percentages by weight of components A to E together give 100%, and also to a process for preparing these molding compositions, and to their use, and to moldings obtainable therefrom.

Abstract: The present invention describes a device having a housing and at least one electrical component, the housing having at least one of the electrical components and being filled at least partially by a passivating agent. Furthermore, it is provided that the electrical component is covered at least partially by the passivating agent. Now, the crux of the present invention is that an additional material layer is applied on top of the passivating agent. Using this additional material layer, a device is able to be implemented in a simple and cost-effective construction, that is resistive to environmental damages. This makes possible using electrical components in corrosive environments.

Abstract: A hardenable reaction resin system, in particular a casting compound, laminating resin, or impregnating resin, which is to be processed as a two-component compound and contains a resin component, a mineral filler, and polymer particles dispersed in the resin component. The filler includes nanoparticles.

Abstract: A hardenable epoxy-free reaction resin system, in particular a casting compound, lacquer, laminating or impregnating resin, which contains an epoxy-free resin component, a mineral filler, and polymer particles dispersed in the resin component. The filler includes nanoparticles.

Abstract: The present invention relates to molding compositions comprising A) from 40 to 99% by weight of at least one epoxy resin, B) from 1 to 60% by weight of at least one polyarylene ether sulfone containing side- or end-groups selected from the group consisting of carboxy groups and anhydride groups, C) from 0 to 60% by weight of at least one polyarylene ether sulfone containing essentially no side- or end-groups selected from the group consisting of carboxy and anhydride groups, D) from 0 to 60% by weight of at least one filler, and E) from 0 to 40% by weight of one or more various additives, where the percentages by weight of components A to E together give 100%, and also to a process for preparing these molding compositions, and to their use, and to moldings obtainable therefrom.