Method for the production of a multi-layer metal cord that is rubberized in situ using an unsaturated thermoplastic elastomer
US9150984B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | May 6, 2011 |
| Grant date | Oct 6, 2015 |
| Priority date | — |
| Expiry date | Oct 17, 2031 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2501/2046
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Method of manufacturing a multi-layer metal cord having a plurality of concentric layers of wires, comprising one or more inner layer(s) and an outer layer, of the type “rubberized in situ. The method includes the following steps: at least one step of sheathing at least one inner layer with the rubber or the rubber composition by passing through at least one extrusion head; and an assembling step in which the wires of the outer layer are assembled around the inner layer adjacent to it, in order to form the multi-layer cord thus rubberized from the inside. The rubber is an unsaturated thermoplastic elastomer extruded in the molten state, preferably a thermoplastic elastomer of the thermoplastic stirene (TPS) elastomer type such as an SBS, SBBS, SIS or SBIS block copolymer for example.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.