| 摘要 |
FIELD: transport. ^ SUBSTANCE: proposed air tire comprises the part of tread 3 with rubber cover 8 and main rubber layer 7. Said main rubber layer 3 incorporates rubber composition containing, at least 30 parts by weight of carbon and at least 2 parts by weight of silicon dioxide per 100 parts by weight of elastomer. Main rubber layer 7 features tensile stress 300%-tension stress (M300) equal to 10-14 MPa and loss tangent (tg ) equal to 0.1 or less. ^ EFFECT: acceptable appearance in final stage of use and reduced heat emission. ^ 7 cl, 1 dwg |
