Mixtures of organosilanepolysulphanes and a process for the...

Details Mixtures of organosilanepolysulphanes and a process for the... Mixtures of organosilanepolysulphanes and a process for the...

C - Chemistry, Metallurgy

07

F

C07F 7/18 (2006.01) C08C 19/20 (2006.01) C08C 19/25 (2006.01) C08K 5/54 (2006.01) C08K 5/548 (2006.01)

Patent

CA 2210780

This invention relates to mixtures of organosilanepolysulphanes of the general formula (RO)3Si(CH2)x S-S z - S (CH2)x Si(OR)3 (I) in which: R means alkyl, linear or branched, having 1-8 C atoms, in particular 1-3 C atoms; x is an integer from 1-8; z is 0 to 6; wherein the sum of the proportions of polysulphanes in which z = 0 and z = 1 amounts to >= 80% (by weight), providing that the proportion of compounds in which z = 0 remains below 80%, and the proportion of organosilanepolysulphanes in which z is an integer from 2 to 6 does not exceed a proportion of 20 wt.% in the mixtures, and to rubber compounds produced using these mixtures, in particular for tyre treads. The invention also provides processes for the production of such rubber compounds.

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