Compagnie Generale Des Etablissements Michelin

Michelin Recherche Et Technique S.a.

Christine Nourry

Bernard Guerinon

Eric Berger

Bertrand Boisdon

Floriandre Voisin

Benoît De-Gaudemaris

Melaine Guillou

A tire exhibits an improved performance compromise, the tread of which comprises a rubber composition based on an elastomeric matrix comprising from 25 to 95 parts by weight per hundred parts by weight of elastomer, phr, of copolymer based on butadiene and on styrene having a glass transition temperature of less than −70° C., and from 5 to 75 phr of polybutadiene, the elastomeric matrix comprising less than 15 phr of isoprene elastomer; at least one reinforcing filler; from 25 to 100 phr of at least one plasticizing resin having a glass transition temperature of greater than 20° C.; and a vulcanization system.

Rubber composition for a tire tread

Tire tread having a central part (I) made from at least one first rubber compound and having at least one circumferential rib (-) formed of a plurality of blocks () separated by sipes; a first and a second lateral part (II and III) made of at least a second and third rubber compound, and having a circumferential rib () formed by a plurality of blocks (), separated by sipes, wherein the at least one second and third rubber compounds have a value of tan &#x3b4; at 23&#xb0; C.&#x2014;at a frequency of 10 Hz and an elongation of 10% &#x2014;of less than 0.25, wherein the complex modulus G*(T) of the at least one first rubber compound is greater than the complex moduli G*(T) of at least one second and third rubber compounds for all temperatures T greater than or equal to 0&#xb0; and less than or equal to 60&#xb0; C.

Tire having low rolling resistance

Growing community of inventors

Clermont-Ferrand, France

Christine Nourry