Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a process for producing the inventive fibers and their use for transmitting optical signals.

Abstract: Optical fibers suitable for transmission of optical signals and comprising a core that contains polycarbonate are disclosed. The polycarbonate is characterized in its low content of insoluble particles.

Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a method for preparing the inventive fibers and the use thereof for transmitting signals.

Abstract: An optical fiber that contains a core of polycarbonate and a coating is disclosed. The coating is a polymer that contains structural units conforming to specified formulae. Also disclosed is a process for producing the inventive fibers and their use for transmitting optical signals.

Abstract: Stable, colourless diene rubbers stabilised with phenolic compounds are produced by adding one or more phenolic compounds (stabilisers) to the polymer blend in a subsequent process step after polymerisation of the monomers used and adjusting the pH value and oxygen content such that the polymer blend displays a pH value in the range from 4 to 11 and the oxygen content is 0 to 0.3 ppm, relative to the water content of the polymer blend.

Abstract: The invention relates to optical fibres comprising a core that contains a polycarbonate and a coating that consists of special polyacrylates or polymethacrylates and stabilizers. The invention also relates to a method for producing said optical fibres, to the use of the optical fibres for transmitting optical signals in means of transport and to means of transport containing said optical fibres. The stabilizers are selected from the group consisting of organic phosphites and organic sulphides.

Abstract: The present invention provides a method for polymerizing conjugated diolefins in the presence of a catalyst of the rare earth metals and in the presence of an aromatic vinyl compound. The diolefins produced thereby may find use in producing rubber-modified molding materials, such as ABS and HIPS.

Abstract: The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130° C. The copolymers produced according to the present invention demonstrate clearly improved processing characteristics as a result of selective masticating effect and good mechanical properties.

Abstract: The present invention provides a method for the production of a copolymer based on vinyl aromatic compounds and conjugated dienes, in which after polymerization, the copolymers are treated with multi-functional sulfur halides in the presence of a catalyst at temperatures in the range from 20 to 130° C.

Abstract: Immunodiagnostic tests in which enzymes or antibodies are bound to porous carrier materials can be carried out by employing as porous carrier materials macroporous polymer membranes which are prepared by(a) dispersing an insoluble filler in a solution which contains at least two incompatible polymers in amounts which lead to phase separation in the solution, resulting in a homogeneous casting solution, and(b) applying this solution to a support and carrying out a precipitation coagulation.

Abstract: The present invention relates to shaped articles which contain active compounds and are characterized in that they comprise, as carriers, thermoplastic elastomers based on polyether block amides, as well as customary additives if appropriate, and to processes for their production and to their use for control of pests in animals.

Abstract: A UV-curable composition suitable for coating polycarbonate molded articles is disclosed. Accordingly the composition containsA) from 10 to 100% by weight of a polysiloxane which contains epoxy groups and is free from OH groups, and optionallyB) from 0 to 90% by weight of compounds other than A) which also contain epoxy groups and are free from OH groups, and/or optionallyC) from 0 to 40% by weight of compounds which are free from epoxy groups but contain hydroxyl groups, where components A)+B)+C) add up to 100% by weight, together withD) from 0.1 to 15% relative to the weight of A+B+C of photoinitiators and optionallyE) from 0 to 0.5% relative to the weight of A+B+C of sensitizers.In accordance with the invention , the composition is applied to the moldings of thermoplastic polycarbonates and then cured.

Abstract: Optical fibres, and a process for their production, are described which comprise tubular plastic cladding and a core of a polymer whose refractive index is at least 1% greater than that of the cladding material. The core is obtained from a polymerisable mixture which comprises compounds containing epoxy groups, of which at least 10% by weight are siloxanes containing epoxy groups.