Patent ID: 6815042
Filing Date: 2004-11-09
Classification: B29C,B29L,E04F,H05F,Y10T

Abstract:
A floor covering comprising: at least two layers bonded to one another, including a bottom layer of electrically conductive rubber arranged under a light-colored top layer of rubber, where the top layer has interruptions distributed over its area in a pattern, and only the interruptions are formed by electrically conductive rubber, wherein the top layer is produced from a powder of first particles that are light in color and made of electrically insulating rubber, and second particles embedded therein, which are made of electrically conductive, at least partially vulcanized rubber; the second particles have a diameter, determined by screen analysis, that is at least as great as the thickness of the top layer and at most as great as the total of the thickness of the top layer and the bottom layer; the first and the second particles are pressed together and to the bottom layer, without pores, and bonded by vulcanization; and at least one of the second particles is present per area unit of the floor covering of 31.7 cm2, up to a maximum of 50% of the total area of the floor covering is taken up by the area of the second particles.