Tire with configured rubber sidewall designed to be ground-contacting reinforced with carbon black, starch and silica
US6838511B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Oct 11, 2001 |
| Grant date | Jan 4, 2005 |
| Priority date | — |
| Expiry date | Mar 20, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60C11/0311
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
This invention relates to a pneumatic rubber tire having a circumferential rubber tread of a lug and groove configuration which extends to a substantial portion an adjacent rubber sidewall and is designed to be ground-contacting. Said lug and groove configured portion of said sidewall is of a rubber composition comprised of a blend of cis 1,4-polyisoprene natural rubber and cis 1,4-polybutadiene rubber which contains reinforcement as carbon black, starch/plasticizer composite and aggregates of participated silica together with a coupling agent. Said circumferential rubber tread is of a rubber composition comprised of at least one diene-based rubber together with carbon black reinforcement and is exclusive of starch and precipitated silica.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.