Radial-ply tire having low rolling resistance

Details Radial-ply tire having low rolling resistance Radial-ply tire having low rolling resistance

1980-03-20

1982-03-16

Kimlin, Edward C.

Resilient tires and wheels

Tires, resilient

Anti-skid devices

152330R, 152357R, 152360, 152374, 152DIG16, B60C 100, B60C 514, B60C 902

Patent

active

043196195

ABSTRACT:
A pneutmatic radial-ply tire in which the rubber portion of at least one of a carcass ply and an undertread constituting the tire is made of a rubber which has a viscoelastic property of loss tangent, tan.delta., of 0.2 or lower (tan.delta..ltoreq.0.2) and storage modulus, G, of 120 Kg/cm.sup.2 or higher (G.gtoreq.120 kg/cm.sup.2), so that the rolling resistance of the tire is reduced without being accompanied by degradation of braking performance, control stability, comfortableness and wear resistance of the tire.

REFERENCES:
patent: 3157218 (1964-11-01), Brown
patent: 3830275 (1974-08-01), Russell
patent: 3871432 (1975-03-01), Lachut
Journal of Elastomers and Plastics, "Compositional Variables Affecting Dynamic Properties of Tire CPDS", vol. 9 (Oct. 1977) pp. 384-394.
Journal of Elastomers and Plastics, "Improved Dynamic Properties in Tires", vol. 10 (Oct. 1978), pp. 326-339.

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