Elastomeric compositions comprising silicate fibres with needle-shaped morphology of nanometric size and tyres for vehicles that comprise them

The present invention regards a solid master elastomeric compn. (masterbatch, MB) comprising silicate fibers with needle-shaped morphol. of nanometric size, characterized by high fiber content and uniformity, a process advantageous for the prepn. thereof and its use in manufg. tyres for vehicles. Advantageously the present elastomeric compn. allows minimizing the drawbacks assocd. with the handling of the powdery fibers in the manufg. of compds. for tyres, without altering the final performances thereof