SILICA-RUBBER MIXTURES HAVING IMPROVED HARDNESS

摘要

A method for increasing the hardness of silica/rubber mixtures is disclosed wherein the method comprises blending with said mixture at least one silane and a hardness­increasing amount of at least one member selected from the group consisting of thixotropic fumed silica; precipitated silica; an MQ resin wherein Q is Si04/2, M is R<1>R<2>R<3>Si01/2, and R<1>, R<2>, and R<3> are the same or different functional or non-functional organic groups; carbon black; a thermoplastic resin; and a thermosetting resin.