EXTRUDED RUBBER PROFILE, METHOD FOR OBTAINING SAME AND TYRE INCORPORATING SAME

摘要

The invention concerns in particular an extruded profile consisting of a crosslinkable rubber composition, a method for obtaining said profile, and a running tread for a tyre based on said crosslinked extruded profile. The inventive extruded profile is delimited in width by two lateral surfaces (4 and 5) linking between them radially inner and outer surfaces (2 and 3) for the running tread (1), conductive means (6) being provided in the profile for electrically connecting the inner surface (2) to the outer surface (3) between the lateral surfaces (4 and 5) and over the length of the profile, the rest of the profile being based on an electrically insulated material. Said profile is such that the conductive means (6), include, in a cross-section of the profile, a laminated structure comprising electrically conductive layers which are substantially concentric and which have a curvature towards at least one of the inner and outer surfaces (2 and 3), at least one of the layers being flush with the outer surface (3). The invention is useful in particular for the quality of radio wave reception from an onboard radio set in a vehicle equipped with tyres.