Abstract: The invention relates to compositions consisting of A) 70 to 90 parts by weight of at least one polycarbonate, B) 10 to 30 parts by weight of at least one graft polymer containing a rubber-elastic particulate graft base, which contains diene, and containing a vinyl co(polymer) shell, C) 0 to 15 parts by weight of at least one additive, wherein the sum of the parts by weight of components A) and B) in the composition is normalized to 100. The invention further relates to the use of the compositions to produce components containing a plastic carrier and a multi-ply metal layer, and to molded bodies produced from the compositions.

Abstract: The invention relates to a composite component consisting of a plastic support and a multi-ply metal layer applied in a galvanizing operation, the plastic support being made of a thermoplastic composition consisting of A) 50 to 90 parts by weight of at least one aromatic polycarbonate, B) 10 to 50 parts by weight of at least one graft polymer comprising a diene-containing, rubber-elastic, particulate graft base and a vinyl (co)polymer shell, C) 0 to 15 parts by weight of at least one additive, where the sum of the parts by weight of components A) and B) in the composition is standardized to 100, (i) characterized in that the rubber content from component B in the composition is at least 6 wt %, (ii) characterized in that the ratio K/S of the weight fractions of butadiene-containing, rubber-elastic, particulate graft base from component B) in the composition (viz.

Abstract: The invention relates to compositions consisting of A) 70 to 90 parts by weight of at least one polycarbonate, B) 10 to 30 parts by weight of at least one graft polymer containing a rubber-elastic particulate graft base, which contains diene, and containing a vinyl co(polymer) shell, C) 0 to 15 parts by weight of at least one additive, wherein the sum of the parts by weight of components A) and B) in the composition is normalized to 100, (i) characterized in that the rubber content from component B in the composition is at least 6 wt %, (ii) characterized in that the ratio K/S of the proportions by weight of rubber-elastic particulate graft base containing diene from component B) in the composition (?K) to the sum of free vinyl (co)polymer from component B), i.e., vinyl (co)polymer from component B) not covalently bonded to the rubber base in the graft polymer according to component B), and any free vinyl (co)polymer from component C) in the composition (?S) is at least 1.

Abstract: The invention relates to (co)polycarbonate compositions and molding compounds, characterized by improved rheological properties and a high heat deflection temperature.

Abstract: The invention relates to (co)polycarbonate compositions and moulding compounds, characterised by improved rheological properties and a high heat deflection temperature.

Abstract: A description is given of a rotating turret device, which has a number of optical components, for example, lenses, condensors, filters and stops, which may be brought into operating position individually in each case. Apart from a motor drive device (1-4), an encoding device (12a-12c; 24a-24c) for the indexing or pre-selection of a specific optical component to be brought into operating position, and locating means (7, 7a; 8) for positioning the optical component in operating position, the rotating device has, in additiion, marking and control means (13; 13a), with the aid of which the speed of the turret can be controlled as a function of its particular relative position. In particular, it is possible with the device described to bring a high-speed motor-driven turret (5) into a set location, there taking place shortly before attainment of this operating position a controlled braking of the rotational speed of the turret (5).

Abstract: In an electromotively adjustable focusing system for a microscope, a rotatable and axially moveable knob controls both the coarse and fine adjustments of the object stage. The knob is mechanically connected to a tacho-generator producing an output voltage responsive to the direction and amount of rotation of the knob. The knob is also mechanically joined to a switch, which is opened or closed by axial movement of the knob in opposite directions. The closing of the switch causes a focus control circuit to provide to the focusing motor a signal that causes coarse (rapid) focusing. When the switch is opened, however, the motor provides fine adjustment of the object stage.

Abstract: A turbine blade includes a core made of a highly heat-resistant alloy and a highly heat-resistant, nonporous, corrosion-resistant, metallic protective cover fitted onto the core. The cover forms a gas-tight metallurgical bond with the core and has great strength, high ductility and a uniform layer thickness. The process includes the steps of preshaping a core of highly heat-resistant material and fitting the preshaped core into a substantially preshaped, corrosion-resistant and highly heat-resistant cover. The cover is welded to the core at a point which during later use is subjected only to little stress to form a vacuum-tight seal and workpiece. The workpiece is heated in a pressure vessel to a temperature of at least 1000.degree. C, and the cover of the heated workpiece is heat-welded to the core by isotactic hot-pressing without the formation of pores.