Pneumatic tire
AssigneeBridgestone Corporation
InventorKentaro KAYASHIMA
Life of this patent
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Abstract
Provided is a pneumatic tire provided with a self-sealing mechanism in which effective temporary repair is made in puncturing while minimizing an increase in a weight, wherein sealant rubber compositions distinguished by sensitivities to temperature which are different in a cavity side and a tire rubber side are disposed in the sealant layer; and η1/η2 is 1.6 or more; η1 is a viscosity of the sealant rubber composition in the cavity side, and η2 is a viscosity of the sealant rubber composition in the tire rubber side at a shear rate of 1 s−1 and a temperature of 30° C.
Claims4
A pneumatic tire having a sealant layer arranged in the tire, wherein sealant rubber compositions distinguished by sensitivities to temperature which are different in a cavity side and a tire rubber side are disposed in the sealant layer;
- and η1/η2 is 1.6 or more;
- η1 is a viscosity of the sealant rubber composition in the cavity side, and η2 is a viscosity of the sealant rubber composition in the tire rubber side at a shear rate of 1 s−1 and a temperature of 30° C.
Dependencies are inferred from the claim text.