RUBBER COMPOUND FOR CUSHIONING LAYER OF SOLID-RUBBER TIRE Russian patent published in 2003 - IPC

FIELD: rubber industry. SUBSTANCE: rubber compound contains, wt parts: natural rubber 70- 80, butadiene rubber 20-30, sulfur 2.0-2.4, vulcanization accelerators: N- cyclohexyl-2-benzothiazolylsulfene amide 0.6-1.0 and 2,2'-dibenzothiazolyl disulfide 0,1-0.4, zinc oxide 4.0-6.0, stearic acid 1.0-3.0, colophony (solid softener) 1.0-3.0, oil bitumen 2.0-5.0, phthalic anhydride (scorching retardant) 0.2-0.5, N-phenyl-N-isopropyl-p-phenylenediamine (antiaging agent) 1.0- 3.0, and carbon black 22-26. EFFECT: reduced hysteresis loss.