CARBON BLACK AND RUBBER COMPOSITION Russian patent published in 1998 - IPC

FIELD: various industries, more particularly rubber compositions. SUBSTANCE: claimed rubber composition comprises rubber and carbon black and has the following properties: STAB specific surface is equal or greater than I₂N₀+5 sq.m/g wherein I₂N₀ is iodine number of adsorption, dibutylphthalate index of kneading resistance is equal or greater than 104 cubic cm/100 g; color current intensity Tint (0.5 STAB+70 sq.m/g)>Tint>(0.5 STAB+60 sq.m/g) and ASTM unit volume is equal or greater than 480,000 cubic nm. EFFECT: improved properties of the rubber composition. 10 cl, 3 dwg, 6 tbl