FIELD: chemistry.
SUBSTANCE: invention relates to chemical industry and can be used for production of silicon dioxide/silane filler for car tyres. Suspension of raw filler is treated with a composition for treatment, containing organosilane, followed by drying said suspension. Organosilane selected is from (4-chloromethylphenyl)trimethoxysilane, (4-chloromethylphenyl)triethoxysilane, [2-(4-chloromethylphenyl)ethyl]trimethoxysilane, [2-(4-chloromethylphenyl)ethyl]triethoxysilane, (3-chloropropenyl)trimethoxysilane, (3-chloropropenyl)triethoxysilane, (3-chloropropyl)triethoxysilane, (3-chloropropyl)trimethoxysilane, trimethoxy(2-p-tolylethyl)silane and/or triethoxy-(2-p-tolylethyl)silane.
EFFECT: reduced rolling resistance.
16 cl, 5 tbl, 1 ex
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