Pneumatic tire having multiple built-in sealant layers and preparation thereof
US10399391B2 · kind B2 · utility
2Cited by
24References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 16, 2014 |
| Grant date | Sep 3, 2019 |
| Priority date | — |
| Expiry date | Jun 17, 2037 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29D2030/0686
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
A tire with a 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 an outer layer of sealant and an inner layer of sealant, disposed inwardly from said tire carcass inner layer, wherein the outer layer of sealant and the inner layer of sealant have different viscosities, and wherein said sealant provides self-sealing properties to the tire.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.