Process for producing mouldable polymer blends

US4935164A · kind A · utility

Assignee

• Zipperling Kessler & Co. (GmbH & Co.) · DE

Inventors

• Bernhard Wessling · Tremsbüttel, DE
• Harald Volk · Bargteheide, DE

Key dates

• Filing date: Jun 13, 1985
• Grant date: Jun 19, 1990
• Expiry date: Jun 13, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2261/312
• WIPO field: Other special machines
• WIPO sector: Mechanical engineering

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.