TREAD WITH TREAD DESIGN ELEMENTS WHICH ARE FORMED FROM AT LEAST TWO MIXTURES OF RUBBER

摘要

The invention relates to a tyre tread comprising a plurality of raised elements (rib and/or block) comprising a contact surface which comes into contact with the road during rolling and side surfaces, the intersection of each side surface with the contact surface forming an edge; a plurality of cut-outs in the form of grooves or incisions, said cut-outs being defined by main surfaces facing each other, each tread design element being formed with at least one rubber mixture (base mixture), characterized in that from a cross-sectional view on a plane containing the thickness of said tread, at least one surface defining at least one cut-out is formed at least in part with a rubber mixture (covering mixture), the base mixture having a wet road adhesion lower than the covering mixture adhesion to the same road.