| 摘要 |
1524077 Rubber mixtures comprising organo silanes DEUTSCHE GOLD-UND SILBERSCHEIDEANSTALT 2 Sept 1975 [18 Aug 1975] 36074/75 Heading C3K A crosslinkable rubber mixture, which does not contain elemental sulphur and when polychlorobutadiene is present does not contain zinc oxide or magnesium oxide, comprises at least one silica or silicate filler and at least one organosilane of formula in which each Z represents a group of formula in which radicals R<1> and R<2> in the same compound may be the same or different and R<1> represents a C1 to C4-alkyl group, C5 to C8- cycloalkyl group or a phenyl radical, R<2> represents a C1 to C4-alkoxy group, C5 to C8-cycloalkoxy group or a phenoxy group, Alk represents a divalent straight-chain, branched chain or cyclic hydrocarbon radical with 1 to 8 carbon atoms, and x is a number from 2À0 to 6À0, Examples are given in which the organosilane is bis(3-triethoxysilylpropyl)-tetrasulphide or bis- (3-trimethoxysilylpropyl)- tri- or di-sulphide. The filler may comprise a blend of carbon black with silica. |
