| abstract |
elastomeric mixture, reinforced rubber composition, preparation processes, tire and tire tread The present invention relates to an elastomeric mixture resulting from the modification of a dienic elastomer by a coupling agent introducing an alkoxysilane group into the elastomeric chain carrying a tertiary or secondary amine functional group. this mixture mainly comprises dienic elastomer coupled by the alkoxysilane group carrying a tertiary or secondary amine functional group linked to the dienic elastomer through the silicon atom. the invention also relates to a reinforced rubber composition, usable notably for the manufacture of tires, comprising a reinforcing filler and an elastomer matrix comprising at least this elastomeric mixture, and its preparation process. this composition has improved hysteretic and mechanical properties in the vulcanized state, as well as improved processability in the non-vulcanized state. |