FIELD: polymer materials. SUBSTANCE: invention relates to new elastomeric compounds with improved hysteresis properties, in particular to those containing silicon-treated carbon blacks and to products prepared from such compounds. Carbon black treated with silicon-containing compound an aggregate wherein treated areas are distributed in a portion of carbon black aggregate and lie on the surface of the latter or near the surface, or in the interior of aggregate. Such carbon black, when added to elastomer, imparts reduced abrasion resistance, comparable or lower loss tangent at high temperature and higher loss tangent at low temperature as compared to untreated carbon black. EFFECT: improved elastomer properties. 83 cl, 9 dwg, 22 tbl, 14 ex
