Patent · US Expired

Method of making an electrically conductive floor covering

US6695999B2 · kind B2 · utility

2Cited by

2References

18Claims

0Family size

Assignee

Firma Carl Freudenberg · DE

Inventors

Hans-Michael Kuhl · Hirschberg, DE
Gerhard Graab · Mannheim, DE
Peter Platzer · Linz, AT
Ralf Möller · Rimbach, DE

Key dates

Filing date	Jan 17, 2002
Grant date	Feb 24, 2004
Priority date	—
Expiry date	Jan 17, 2022

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/25
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A method to produce an electrically conductive floor covering made of first particles of a polymer material which are surrounded with electrically conductive second particles and compressed in the intermediate space between the top and bottom sides of the floor covering, with the floor covering having at least one cut surface and the electrically conductive second particles forming conductive paths which connect the upper side and the lower side of the floor covering in an electrically conductive way, in which the first particles comprise at least one granulated elastomer material and form a matrix, in which the second particles form electric conductive paths along the particle boundaries of the first particles.

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