Electrically conductive and antistatic moulding compositions

US4769177A · kind A · utility

Assignee

• BAYER HEALTHCARE LLC · DE

Inventors

• Jurgen Hocker · Bensberg, DE
• Rolf Dhein · Krefeld, DE
• Rudolf Merten · Leverkusen, DE

Key dates

• Filing date: May 13, 1982
• Grant date: Sep 6, 1988
• Expiry date: May 13, 2002

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K7/02
• WIPO field: Electrical machinery, apparatus, energy
• WIPO sector: Electrical engineering

Abstract

Electrically conductive or antistatic polymers containing charge transfer complexes corresponding to general formula I EQU D A.sub.n (I) wherein D represents an electron donor; A represents an electron acceptor; and n represents an integer of from 1 to 5; wherein the charge transfer complexes are in the form of fibre- or needle-like crystals having a diameter-to-length ratio of from 1:20 to 1:500, preferably from 1:20 to 1:200, and a process for the production of these polymers wherein a solution of the donor or a donor salt in a suitable solvent and a solution of the acceptor or an acceptor salt are successively added in this order or in the reverse order to a monomer, a soluble polymer preliminary stage or a polymer solution and the solid charge transfer complexes thus produced in the polymer or its preliminary stage.