A PROCESS OFMPREPARING MIXTURES OF OLIGO SULFIDES OF N,N'-SUBSTITUTED BIS-(2,4-DIAMINO-S-TRIAZIN-6-YL)-TETRASULFIDES

摘要

Compounds of the general formula IMAGE in which R1, R2 denote H; R2 denotes benzyl, R2, R3, R4 denote C1-C8-alkyl, allyl, C3-C8-cycloalkyl, the latter being unsubstituted or substituted by 1-3 methyl groups, 2-hydroxyethyl, 3-hydroxypropyl, 2-hydroxypropyl or R3 and R4 (together) denote C4-C6-alkylene, -(CH2-CHX)2Y where X is H, CH3 and Y is O, S and their oligosulphide disproportionation products, whose average statistical chain length corresponds to S4 are prepared from the corresponding N,N'-substituted diaminomercaptotriazines. The substances according to the invention are used in vulcanisable rubber mixtures as crosslinking agents without sulphur or as vulcanisation accelerators together with sulphur.