FIELD: chemistry of polymers. SUBSTANCE: described is mixture of special association of silicone compounds which comprises at least one functionalized polyorganosiloxane containing per molecule at least one functional sili unit (MO1) capable of being bonded chemically or physically with hydroxyl sections of surface of silica particles and at least one functionalized organosilane (OS) containing per molecule at least one functional unit (G1) capable of being bonded chemically and/or physically with MO1 units and/or hydroxy-containing sections of silicon particles and at least one other functional group (G2) capable of being bonded chemically or physically with elastomeric links; cross- linking agent is silica elastomer in natural or synthetic elastomeric compositions. EFFECT: use of mixture as reinforcing filler comprising silicon agent. 24 cl, 15 tbl
