Antistatic and electrically conducting polymers and moulding materials

US5009812A · kind A · utility

Assignee

• Ciba-Geigy · US

Inventors

• Jurgen Finter · Glückstadt, DE
• Bruno Hilti · Basel, CH
• Carl W. Mayer · Riehen, CH
• Ernst Minder · Sissach, CH
• Josef Pfeifer · Therwil, CH

Key dates

• Filing date: Mar 25, 1988
• Grant date: Apr 23, 1991
• Expiry date: Mar 25, 2008

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01B1/121
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

As a result of the action of electron acceptors, for example chlorine, bromine and/or iodine, on compositions containing a linear, branched or structurally crosslinked polymer and an unsubstituted or substituted tetrathionaphthalene, tetraselenonaphthalene, tetratelluronaphthalene, tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, electrical conductivity is imparted to the compositions through the formation of charge-transfer complexes. These compositions are suitable for the production of mouldings, filaments, fibres, coatings and composite materials which have an antistatic finish or are electrically conducting.