RUBBER COMPOUND FOR TREAD PART OF SOLID-RUBBER TIRE Russian patent published in 2003 - IPC

FIELD: rubber industry. SUBSTANCE: invention relates to composition of high-molecular compounds, namely to composition of rubbers and their derivatives, in particular homopolymers and copolymers of conjugated diene hydrocarbons. Rubber compound based on unsaturated rubbers: 70-90 wt parts natural rubber and 10-30 wt % butadiene rubber contains, wt parts: sulfur 1.2- 1.8, 2- benzothiazolylsulfene morpholide (vulcanization accelerator) 0.6-1.2, zinc oxide 4.0-6.0, stearic acid 0.5-2.0 and colophony 0.5-2.0 (both softeners), petroleum-origin plasticizer 10-16, 2,2,4-trimethyl-1,2-dihydroquinoline 1.0-3.0 and N-phenyl-N'-isopropyl-p-phenylenediamine 1.0-3.0 (both polymer antiaging agents), protective wax 1.0- 3.0, phthalic anhydride 0.4-0.6 and benzoic acid 0.4-0.6 (scorching retardants), and carbon black 48-55. EFFECT: improved working characteristics of solid-rubber tires.