METHOD FOR PRODUCTION OF VULCANIZED POLYMER AND RUBBER MIXTURES BEING FILLED WITH CARBON BLACK Russian patent published in 1996 - IPC

FIELD: rubber industry. SUBSTANCE: carbon black and one or more organosilicon compounds are added separately into rubber mixtures which have no content of silicic acid. Said compounds have common formula [R_n-(RO)_3-nSi-(Alk)_m-(Ar)_pI_q (B) where is alkyl or is alkenyl, b represents -SCN, -SH, -Cl, --NH₂ (if q=1) or -S_x (if q=2); R and R¹ are alkyl groups having 1-4 carbon atoms, phenyl residue, all the residues of R and R¹ may be the same or different; R is -C₁-C₄ alkyl, -C₁-C₄-alkoxy group; n=0, 1 or 2; Alk is bivalent linear or branched hydrocarbon residue having 1-6 carbon atoms, m=0 or 1; Ar is arylene residue having 6-12 carbon atoms (6 carbon atoms being preferred); p=0 or 1 proviso that simultaneously p and n are not 0; x is integer from 2 to 8. Mentioned above alkyl is monovalent linear or branched saturated hydrocarbon residue having 1-20 carbon atoms (2-8 carbon atoms being preferred). Mentioned above alkenyl is monovalent linear or branched saturated hydrocarbon residue having 2-20 carbon atoms (2-8 carbon atoms being preferred). Quantity of said organosilicon compound is 0.4-4.7 mass parts per 100 mass parts of carbon black. Promoter of vulcanization, inhibitor of vulcanization, zinc oxide together with stearic acid are also added into rubber mixture, quantity of said components is 0.1-10.0, 0.1-10.0 and 0.5-10.0 mass parts per 100 mass parts of rubber respectively. EFFECT: improves quality of desired product. 3 tbl