Process for preparing rubber compositions containing hydrophobised oxidic or siliceous fillers and their use for making tyres

摘要

Rubber mixtures containing rubber(s) and 5-300 parts by weight (pts. wt.) waterproofed oxide or silicate filler are produced by treating the filler (containing not more than 3 wt.% physically bound water) including 1 - 100 pts. wt. plasticizer to 100 pts.wt. filler. This composition is mixed with the rubber as usual. An Independent claim is also included for rubber mixtures made by this process containing 0.1-15 pts. wt. sulfur-containing silyl ether (per 100 pts. wt. rubber) in addition to fillers and other rubber additives.