Basf Aktiengesellschaft

Badische Anilin- & Soda-Fabrik Aktiengesellschaft

Hans-Georg Trieschmann

Klaus Bronstert

Gerhard Fahrbach

Volker Ladenberger

Wolfgang Rau

Karl Wisseroth

Horst Rosewicz

Dieter Ballweber

Hans Mittnacht

Herbert Willersinn

Ernst-Guenther Kastning

Gerhard Jansen

Karl-Heinz Ambil

Eduard Krahe

Impact-resistant thermoplastic molding materials prepared from a rigid component and a soft component. The rigid component consists of polystyrene, the soft component consists of a mixture of a polyolefin with a copolymer of a vinylaromatic and a diene hydrocarbon which has been prepared by anionic solution polymerization and which may have been hydrogenated. The molding materials may be used for the production of molded parts for use in domestic appliances, automobiles and refrigerators.

Impact-resistant polystyrene, .alpha.-olefin, block copolymer blends

An improved method of removing heat from polymerization reactions of normally gaseous monomers in the gas phase comprising feeding the monomer in liquid form to a polymerization zone, immediately after entering said zone, removing a portion of said gaseous monomer from the polymerization zone, liquefying said portion of monomer by cooling it at the same pressure as that prevailing in the polymerization zone, recycling the liquefied monomer to the polymerization zone together with fresh monomer in liquid form and causing said liquid monomer to change to the gaseous form immediately after entering said zone. The improvement consists in not only condensing the monomer outside the polymerization zone but also storing the same, in keeping the temperature in the polymerization zone constant by regulating the rate at which liquid monomer is fed to the zone, and in keeping the temperature and pressure in the polymerization zone within limits conducive to the gaseous state of the monomer.

Method of removing heat from polymerization reactions of monomers in the

A process for the manufacture of a gas mixture containing acetylene, ethylene, methane and hydrogen by cracking a liquid hydrocarbon by means of a plurality of arcs burning under the surface of the liquid hydrocarbon and limited, in their electrical effect, by current-limiting elements, wherein the total energy acting on the system is distributed by an arrangement of the electrical components, which is responsible for the stability of the arcs, over a plurality of localized burning points, the current-limiting components being matched to the voltage so that the output of each individual arc on average does not exceed 1.2 kW.

Process and apparatus for the manufacture of a gas mixture containing

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Hambach, Germany

Hans-Georg Trieschmann