Abstract: A process for the production of moldings from a polymer alloy of multiphase morphology, in which the polymer alloy is prepared with the injection molding in one process step. For this, thermoplastically processable polymers which are incompatible or not very compatible with one another are introduced as granules, preferably having a particle size of greater than or equal to 3 mm, into the hopper of an injection molding machine and are subsequently plasticized, mixed thoroughly, and shaped in the injection molding machine; where at least one of the polymers employed is capable chemically, under the injection molding conditions, of association and/or copolymerization with at least one other of the participating polymers. The resulting polymer alloys are not inferior in their properties to corresponding conventionally produced alloys. The moldings are useful in orthopedics.

Abstract: A method and an apparatus for the production of continuous composite materials from unidirectional reinforcing fibers and from thermoplastics, the longitudinally moved bundle of parallel continuous reinforcing fibers being preheated and impregnated with a continuously supplied thermoplastic melt, whereupon the continuous composite material thus formed is cooled. In order to improve the impregnating operation, it is proposed, according to the invention, that the thermoplastic melt form an elongate impregnation stage, into which mechanical energy is introduced continuously in order to reduce the melt viscosity, and that the preheated fiber bundle be drawn continuously through the zone of reduced melt viscosity.

Abstract: The invention relates to an orthopaedic clamped connection as a functional element for force transmission in a prosthesis, comprising a tube socket and a tube made of light metal. To increase the dynamic stressability, the contact area between tube socket and tube made of light metal is provided with an intermediate layer which is composed of a low molecular weight carrier material in which at least one lubricant and/or auxiliary is embedded.