/ Coupling system white filler/diene elastomer based on polysulphide alkoxysilane zinc dithiophosphate and guanidine derivative

摘要

The present invention relates to a coupling system (white filler / diene elastomer) for rubber compositions based on a white filler-reinforced diene elastomer formed by combining polysulfide alkoxysilane, zinc dithiophosphate and guanidine derivatives; (Iv) at least a diene elastomer (i), a white filler as a reinforcing filler (ii), a polysulfide alkoxysilane (iii) as a coupling agent (white filler / diene elastomer), zinc dithiophosphate (iv) and a guanidine derivative , Rubber compositions useful in the manufacture of tires; A method for producing such a rubber composition; And a semi-finished product, especially a tread, for a tire or tire comprising a rubber composition according to the invention.