Abstract: Substantially monomer-free, electrically conductive organic polymers and/or organic conductors are dissolved or dispersed in a melt or solution of a thermoplastic matrix polymer or polymer mixture partially compatible therewith and having a solubility parameter >8.6 (cal/cm.sup.3).sup.1/2, in order to obtain mouldable polymer blends. The latter are suitable for producing moulded articles, particularly for electrical conductors, semiconductors or photoconductors. A suitable apparatus for producing the polymer blends comprises an extruder or kneader, through whose barrel one or more sonotrodes project into the transformation zone.

Abstract: Antistatic or electrically semiconducting thermoplastic polymer blends contain two partially compatible thermoplastic polymers A and B, whereof polymer A has a lower viscosity than polymer B and whereby the solubility parameters thereof also differ. Polymer A, which forms the continuous phase, contains an addition of electrically conductive substances and forms current-carrying conductor tracks. The polymer blends are suitable for producing antistatic or electrically semiconductor coatings, foils, moulded articles or parts.

Abstract: Substantially solvent-free and monomer-free, conductive organic polymers and/or organic conductors are molded, under moisture and oxygen exclusion, at elevated temperature and under a pressure of at least 500 bar to moldings with a highly lustrous surface which appears metallic. The moldings are suitable for use as electrical conductors, semiconductors or photoconductors. A suitable apparatus for producing the moldings has an inert gas-fillable and evacuatable press capsule, which is placed between a die and an abutment in a heatable molding apparatus.