Patent ID: 8420723

Claim:
A method of producing a tyre mix, comprising a first mixing step, in which a mix comprises at least one cross-linkable unsaturated-chain polymer base, 10 to 100 phr of silica, and 1 to 20 phr of a silane bonding agent of formula I; and a final mixing step, in which a curing system is added to the mix; wherein said silane bonding agent is used in adsorbed form on 0.5 to 2 phr of zinc oxide, and on 5 to 15 phr of carbon black; at said first mixing step, the mix comprises 1 to 5 phr of one or more fatty acid derivatives; and at said final mixing step, 1 to 2 phr of zinc oxide is added to the mix; SH(CH 2 ) 3 SiR 1 R 2 2 (I) where: R 1 is —OCH 2 CH 3 and R 2 is —O(CH 2 CH 2 O) 5 (CH 2 ) 13 CH 3 .