Abstract: Polymeric compositions rendered antistatic or electrically conductive showing increased conductivity are obtained by incorporating into a matrix polymer a combination ofA. a first finely divided conductive material, namely conductive carbon black with a BET surface area of more than 80 m.sup.2 /g or an intrinsically conductive organic polymer in complexed form, andB. a second finely divided conductive material, namely graphite or an intrinsically conductive polymer in complexed form, which is different from the material used as material A, or a metal powder and/orC. a finely divided non conductive material having an average particle size below 50 microns.
Type:
Grant
Filed:
November 9, 1992
Date of Patent:
December 19, 1995
Assignee:
Zipperling Kessler & Co., (GmbH & Co.).
Inventors:
Bernhard Wessling, Merkle Holger, Susanne Blattner