Run-flat tires having a sidewall support that is manufactured from particular rubber composition. These compositions are based upon a cross-linkable elastomer composition having, per 100 parts by weight of rubber, a polybutadiene rubber having a Mooney viscosity of between 55 and 85 and a low-surface area, high-structure carbon black. An additional second rubber component may also be included in the elastomer composition. The low-surface area, high-structure carbon black may be characterized as having a nitrogen surface area of between 15 m2/g and 25 m2/g and a COAN of between 65 ml/100 g and 85 ml/100 g.
Sidewall support for a runflat tire
2016-03-22
Patent
Electronic Resource
English
IPC: | B60C VEHICLE TYRES , Fahrzeugreifen |