SILANE MIXTURES AND METHOD FOR PREPARATION OF SUCH SILANE MIXTURES Russian patent published in 2022 - IPC C08L83/14 C07F7/18 

FIELD: chemistry.

SUBSTANCE: invention relates to silane mixtures and their production methods. A silane mixture for rubber mixtures is proposed, containing silane of the formula I and silane of the formula II, where R¹ have the same or different values and are C₁-C₁₀alkoxy groups, R² is absent, R³ and R⁴ have the same or different values and are an unbranched saturated aliphatic bivalent hydrocarbon group with C₁-C₃₀, x is an integer from 1 to 2, while in case when x is 1, R⁵ is a group -C(=O)-R⁸, where R⁸ is hydrogen, C₁-C₂₀alkyl group, and n is 0, 1, 2, or 3, and in case when x is 2, R⁵ is -(R⁴-S)_n-R³-Si(R¹)_y(R²)₃-y, and n is 1, 2, or 3, and y is equal to 3, while the molar ratio between silane of the formula I and silane of the formula II is from 20:80 to 90:10. The silane mixture proposed in the invention can be prepared by mixing of silanes of the formula I and silanes of the formula II.

EFFECT: proposed silane mixtures, when used in a composition of rubber mixtures, provide reduction in rolling resistance and increase in destruction energy density.

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8 cl, 6 tbl, 36 ex