Tire with zoned built-in sealant layer
US8156979B2 · kind B2 · utility
1Cited by
22References
7Claims
0Family size
Inventors
Key dates
| Filing date | Nov 19, 2007 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Oct 22, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10693
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
The present invention relates to a pneumatic tire which contains a built-in zoned puncture sealant layer. The zoned puncture sealant layer is comprised of organoperoxide depolymerized butyl rubber zones comprised of a central primary zone and lateral zones joined together to form a unitary sealant layer. The sealant of the lateral zones of the sealant layer is of a higher storage modulus (G′) than the sealant of the central zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.