SILICA-FILLED RUBBER COMPOSITIONS AND THE PROCESSING THEREOF.

摘要

The present invention relates to silica-filled rubber compositions and their method of processing. The rubber compositions contain 10 to 150 phr of a particulate precipitated silica having dispersed thereon a trialkoxysilane of the formula: (see formula) where R1 is independently selected from the group consisting of alkyl radicals having from 1 to 20 carbon atoms and aryl radicals having from 6 to 24 carbon atoms; R2 is an alkyl radical having from 1 to 8 carbon atoms; and wherein said trialkoxysilane is present on said silica at a level ranging from 1 to 20 percent by weight based upon the weight of the silica.