Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Masayuki Maesaka

Salvatore Pagano

Vincent Abad

Frédéric Perrin

Makiko Watanabe

Philippe Mansuy

Ludovic Greverie

Masashi Igarashi

Aurélie Triguel

Abdeslam El-Harak

Materials make it possible to generate mechanical coupling in elastomeric compositions, of use especially for the manufacture of tyre treads. In particular, a tread comprises a composite material based on an elastomeric matrix, a crosslinking system, a reinforcing filler and oriented short fibres.

Composite materials based on oriented orthotropic fiber mixtures for imparting mechanical coupling

A tread for a pneumatic tire includes tread pattern elements and cuts. Each tread pattern element includes lateral faces and a contact face that comes into contact with a road surface when the tire is being driven thereon. A boundary between the contact face and the lateral faces forms at least one edge corner. The cuts are formed as grooves and/or sipes, with the cuts being delimited by opposing lateral faces of the tread pattern elements. Each tread pattern element is formed of at least one rubber compound. When the tread is viewed in cross section in a plane normal to an axis of rotation of the tire and passing through a contact face of a tread pattern element, at least one of the cuts adjacent to that contact face is covered at least in part with a covering layer that contains a woven or nonwoven fiber assembly.

Tread comprising tread pattern elements covered with an impregnated fibre assembly

A rubber composition usable as tread for a winter tire, having a high grip on melting ice, comprising at least one diene elastomer such as natural rubber and/or a polybutadiene, more than 30 phr of a liquid plasticizing agent, between 50 and 150 phr of a reinforcing filler such as silica and/or carbon black, and between 5 and 40 phr of magnesium sulphate microparticles.

Rubber composition for a winter tire tread

A treadhaving a tread surfaceonto which there opens at least one cavity, this cavity being bounded by a cavity wallcomprising a bottom wallextended by a side wallintersecting the tread surface to form at least one edge corner, this tread being, over at least part of the wall of the cavity, provided with a plurality of supporting strands, each supporting strandcomprising two ends of which one endis attached to the cavity wall, this tread being characterized in that the supporting strandseach comprise at least one branching formed by the attachment of at least one branching strand

Tread band with grooves provided with a noise-reducing device

Growing community of inventors

Clermont-Ferrand, France

Masayuki Maesaka