Tire comprising a crown reinforcement
US9937753B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Aug 3, 2012 |
| Grant date | Apr 10, 2018 |
| Priority date | — |
| Expiry date | May 1, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T152/10801
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
The invention relates to a tire comprising a crown reinforcement formed of at least two working crown layers of reinforcing elements the ends of which are radially uncoupled by a polymer compound. According to the invention, the reinforcing elements of at least one working crown layer are metal cords with saturated layers, at least one internal layer being sheathed with a layer consisting of a polymer composition such as a rubber composition and in each of the shoulders of the tire, at least the uncoupling polymer compound in contact with the ends of at least two working crown layers exhibits, in the sorption test, a gas content lower than 0.06 m3STP/m3ML.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.