FIELD: transportation.
SUBSTANCE: invention relates to a new reinforcing tire cord, namely to impregnated and heat-fixed cord, which can be used as carcass reinforcement in radial and diagonal pneumatic tires with improved high-speed durability and without any subsidence. Impregnated and thermo-fixed cord is made of ultrahigh-modulus aramide fibre with bielastic stretching properties. Impregnated and thermo-fixed cord has at least two cord threads, and the interval between the cord threads is more than 10 % and less than 50 % of the cord diameter (D).
EFFECT: invention enables to obtain a bielastic tire cord, which has TASE value with elongation of 1,0 % less than 2,0 cN/decitex.
6 cl, 11 dwg
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