Pneumatic tire with in-situ generated sealant composition by chain cessation of ionic butyl
US10919242B2 · kind B2 · utility
0Cited by
16References
16Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 16, 2020 |
| Grant date | Feb 16, 2021 |
| Priority date | — |
| Expiry date | Mar 16, 2040 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09J123/26
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention is directed to a tire with in-situ generated built-in puncture sealant comprising a supporting tire carcass comprised of one or more layers of ply, an outer circumferential tread, and a radially inner layer, a pair of beads, sidewalls extending radially inward from the axial outer edges of the tread portion to join the respective beads, a sealant comprising the chain cessation product of a butyl ionomer-based rubber sealant precursor composition catalyzed by peroxide disposed inwardly from said radially inner layer, and wherein said sealant provides self-sealing properties to the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.