Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, to processes for the production thereof and to the use thereof as a stabilizer in ester-based polymers especially in films for protection from hydrolytic degradation.

Abstract: The invention relates to novel carbodiimides having terminal urea and/or urethane groups, to processes for the production thereof and to the use thereof as a stabilizer in ester-based polymers especially in films for protection from hydrolytic degradation.

Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.

Abstract: The present invention relates to novel compositions, to the preparation thereof and to the use thereof for the production of cast polyamides.

Abstract: The present invention relates to a system comprising a) at least one catalyst for the anionic polymerization of lactams, and b) at least one activator for the anionic polymerization of lactams, wherein the at least one activator is a cyclic isocyanate, at least one allophanate or a mixture thereof.

Abstract: The present invention relates to a system comprising a) at least one catalyst for the anionic polymerization of lactams, and b) at least one activator for the anionic polymerization of lactams, wherein the at least one activator is a cyclic isocyanate, at least one allophanate or a mixture thereof.

Abstract: A field device for monitoring an operating state of an electrical engineering installation, in particular a transformer substation or a switching substation, having an evaluation device, which evaluates input signals, which are present on the input side and relate to the electrical engineering installation, on the basis of predetermined criteria and, on the output side, generates an output signal, which characterizes the respective evaluation result. An identification can be input to the evaluation device which specifies the hierarchical level to which the evaluation device is assigned. The evaluation device is designed such that, after a connection to a data transmission network, it automatically produces a data link with all other evaluation devices connected thereto or with all other evaluation devices connected thereto of a predetermined type which belong to a directly lower-order or a directly higher-order hierarchical level.

Abstract: A field device for monitoring an operating state of an electrical engineering installation, in particular a transformer substation or a switching substation, having an evaluation device, which evaluates input signals, which are present on the input side and relate to the electrical engineering installation, on the basis of predetermined criteria and, on the output side, generates an output signal, which characterizes the respective evaluation result. An identification can be input to the evaluation device which specifies the hierarchical level to which the evaluation device is assigned. The evaluation device is designed such that, after a connection to a data transmission network, it automatically produces a data link with all other evaluation devices connected thereto or with all other evaluation devices connected thereto of a predetermined type which belong to a directly lower-order or a directly higher-order hierarchical level.

Abstract: A clamping device for workpieces or tools with a high concentricity utilizes a shank part supported in a cylindrical borehole of a base body, and an adjusting device disposed in the support area of the shank part includes several tapped holes, especially tapered tapped holes in the base body, which are distributed in a radial plane, as well as tapered bolts which can be screwed into the tapped holes.

Abstract: Chuck apparatus for workpieces or tools with a base body provided with a cylindrical borehole and a concentrically thereto arranged cylindrical clamping sleeve of variable size with internal and external annular recessed grooves displacedly arranged relative to each other in the axial direction as well as a tightening nut or the like acting axially upon the clamping sleeve axially supported on a front end of the opposite side, whereby at least the clamping sleeve's end located remotely from the tightening nut or the like is configured as a taper sleeve acting in conjunction with a counter taper.