Patent · US Expired

Product with antistatic properties

US6656997B2 · kind B2 · utility

20Cited by

11References

18Claims

0Family size

Assignee

Degussa AG · DE

Inventors

Franz-Erich Baumann · Schneverdingen, DE
Reinhard Beuth · Marl, DE
Josef Kubber · Geldern, DE
Michael Schlobohm · Haltern, DE

Key dates

Filing date	Sep 26, 2001
Grant date	Dec 2, 2003
Priority date	—
Expiry date	Dec 27, 2021

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC08K3/04
WIPO fieldMacromolecular chemistry, polymers
WIPO sectorChemistry

Abstract

A product made from plastic and composed, at least in part, of a thermoplastic molding composition which comprises polyamide and comprises from 3 to 30% by weight of a conductivity black, where the conductivity black is defined by the following parameters:a) DBP absorption of from 100 to 300 ml/100 g;b) a specific surface area of from 30 to 180 m2/g;c) an ash content of less than 0.1% by weight andd) a grit content of not more than 25 ppm,has improved heat-ageing resistance, and also improved resistance to peroxide-containing motor fuels.

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