| abstract |
The invention relates to a rubber composition having high grip on melting ice, usable in particular as a tread for a winter tyre, and comprising at least one diene elastomer such as natural rubber and/or a polybutadiene, more than 30 pce of a liquid plasticising agent, 50 to 150 pce of a reinforcing filler such as silica and/or carbon black, and 2 to 60 pce of microparticles of potassium sulphate. The invention also relates to the treads of tyres, as well as to the tyres themselves, which have, in addition to improved grip on melting ice, a considerably reduced capacity for absorbing water. The invention further relates to a method for manufacturing such a composition. |