Floor covering

Abstract

The invention relates to a floor covering consisting of at least two interconnected layers, comprising an electrically conductive rubber lower layer (2) that is arranged below a light-coloured upper rubber layer (1). The upper layer (1) is perforated in partial sections that are distributed in a pattern over its surface with electrically conductive rubber being embedded in said sections. The upper layer (1) is created by pouring (1.1) first light-coloured particles (1.2), consisting of an electrically insulating rubber onto the lower layer and embedding second particles (1.3) therein, the latter consisting of electrically conductive rubber that is at least pre-vulcanised. The second particles (1.3) have a diameter D, which is determined by screen analysis and is at least equal to the thickness D1 of the upper layer and for practical purposes no greater than the sum of the thickness of the upper and lower layer D2. The first (1.2) and the second particles (1.3) are compressed together and with the lower layer (2) in a pore-free manner and are bonded by vulcanisation. At least one of the second particles (1.3) is present in a surface area unit of 31.7 cm2 of the floor covering, with the proviso that the surface area of the second particles (1.3) constitutes a maximum 50 % of the entire surface area of the floor covering.

Description

Technical field [0001] The present invention relates to a floor covering comprising at least two interconnected layers, including a lower layer made of conductive rubber arranged under a light-colored upper layer made of rubber, wherein the upper layer is in a patterned Part of the area where the form is distributed on the surface is perforated / perforated, and at the same time it is formed by conductive rubber at the perforation. The invention also relates to a method for producing the ground covering. Background technique [0002] Such a floor covering is known from EP 0105074 B1. This floor covering consists of two layers of rubber with contrasting colors arranged on top of each other, wherein the lower layer is conductive and the upper layer is non-conductive. The coating is made in such a way that the material of the upper layer is pre-hardened by early vulcanization before extrusion, and the surface area is removed, and then it is laminated on a soft, unvulcanized rubber On ...

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