Self-adhesive composite reinforcement, in particular for tires, and associated manufacturing method
US8790788B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 20, 2010 |
| Grant date | Jul 29, 2014 |
| Priority date | — |
| Expiry date | Dec 2, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/31855
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Composite reinforcement (R-2) that is self-adhesive by curing to a diene rubber matrix, which can be used as reinforcing element for a tire, having one or more reinforcing thread(s) (20), for example a carbon steel cord; a first layer (21) of a thermoplastic polymer, the glass transition temperature of which is positive, for example 6,6 polyamide, covering the thread or the threads; and a second layer (22) having a functionalized unsaturated thermoplastic styrene elastomer, the glass transition temperature of which is negative, for example an epoxidized SBS elastomer, covering the first layer (21), the elastomer containing functional groups selected from epoxide, carboxyl and acid anhydride or ester groups. Process for manufacturing such a composite reinforcement and rubber article or semi-finished product, especially a tire, incorporating such a composite reinforcement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.