Process for compounding a conjugated diolefin polymer with a siliceous filler and an organohalosilane

Claim 1

THE PROCESS WHICH COMPRISES COMMINGLING A SULFURVULCANIZABLE ELASTOMER SELECTED FROM THE GROUP CONSISTING OF RUBBERY COPOLYMRS OF A MAJOR PROPORTION OF ISOLBUYLENE AND A MINOR PROPORTION OF A CONJUGATED DIOLEFIN HYDROCARBON AND CONJUGATED DIOLEFIN POLYMR SYNTHETIC RUBBERS. A FILLER SELECTED FROM THE GROUP CONSISTING OF PRECIPITATED HYDRATED SILICA AND PRECIPITATED HYDRATED CALCIUM SILIATE, SAID FILLER HAVING AN AVERAGE PARTICLE SIZE LESS THAN 0.1 MICRON, AND AN ORGANOHALOSILAND SELECTED FROM THE GROUP CONSISTING OF SATURATED ALIPHATIC AND CYCLOALIPHATIC ORGANOHASILANES AND ORAMATIC ORGANOHALISILANES IN WHICH THE HALOGEN IS SELECTED FROM THE GROUP CONSISTING OF CHLORINE, BROMONE AND IODINE AND EFFECTNG CHEMICAL REACTION BETWEEN SAID FILLER AND SAID ORGANOHALOSILANE WITH THE LIBAERATION OF HYDROGEN HALIDE CORRESPONDING TO SAID HALOGEN, SUBSEQUENTLY INCORPORATING VAULCANIZING INGREDIENTS WITH THE RESULTING MIXTURE, AND VULVANIZING THE RESULTING MIXTURE.