BENZOTHIAZOLE-CONTAINING SILANES, THEIR PREPARATION METHOD AND THEIR APPLICATION Russian patent published in 2021 - IPC C07F7/18 C08L15/00 C08K9/06 

FIELD: chemistry.

SUBSTANCE: invention relates to benzothiazole-containing silanes and their use in rubber mixtures. Benzothiazole-containing silane of the formula (I) is proposed, in which R¹ is R⁴O-group, where R⁴ is methyl, ethyl or propyl; R² is a group of simple alkyl polyester –O-(R⁵-O)m-R⁶, where R⁵ has the same values and is an unbranched saturated aliphatic divalent hydrocarbon group C₁-C₃₀, m is a number from 1 to 30, and R⁶ is a branched or unbranched alkyl group C₁-C₃₀; R³ is an unbranched saturated aliphatic divalent hydrocarbon group C₁-C₃₀; x is a number from 2 to 4; n is 0, 1 or 2. A method is also proposed for obtaining the claimed silanes by the interaction of benzothiazole-containing silanes of the formula (II) with a compound of the formula R²-H, where R¹, R², R³, x and n have the above-mentioned values. The use of the specified silanes as additives in rubber mixtures and rubber mixtures with their content are also proposed.

EFFECT: proposed benzothiazole-containing silanes have improved recyclability in rubber mixtures at high parameters of rubber mixtures and products made of them.

10 cl, 7 tbl, 5 ex