Patent · US Expired

Process for making antistatic or electrically conductive polymer compositions

US5476612A · kind A · utility

33Cited by

3References

8Claims

0Family size

Assignee

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

Inventors

Bernhard Wessling · Tremsbüttel, DE
Merkle Holger · Ahrensburg, DE
Susanne Blattner · Hamburg, DE

Key dates

Filing date	Nov 9, 1992
Grant date	Dec 19, 1995
Priority date	—
Expiry date	Nov 9, 2012

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S524/912
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

Polymeric compositions rendered antistatic or electrically conductive showing increased conductivity are obtained by incorporating into a matrix polymer a combination of PA1 A. 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, and PA1 B. 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/or PA1 C. a finely divided non conductive material having an average particle size below 50 microns.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.