| 摘要 |
Pneumatic rubber tire having at least one component of a polybutadiene-rich rubber composition comprised of a blend of a primary, low glass transition temperature (Tg), major continuous phase of cis 1,4-polybutadiene rubber having a degree of branching and a minor, high Tg, dispersed phase of brominated copolymer of isobutylene and paramethylstyrene. Said blend contains reinforcing fillers as a combination of amorphous silica and rubber reinforcing carbon black. Such tire component may be, for example, a circumferential tread having a running surface intended to be ground-contacting.
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