Metallic or metallized, graphenized reinforcement
US10655274B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 2015 |
| Grant date | May 19, 2020 |
| Priority date | — |
| Expiry date | Mar 29, 2037 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B2205/3092
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A threadlike metallic or metallized reinforcer, for example a thread, film, tape or cord made of carbon steel, at the periphery of which is positioned a layer of metal referred to as “surface metal” chosen from copper, nickel and copper/nickel alloys, is characterized in that this surface metal layer is itself coated, at least in part, with at least one layer of graphene; preferably, there is grafted, to this graphene, at least one functional group which can crosslink to a polymer matrix. This reinforcer of the invention is effectively protected from corrosion by virtue of the graphene present at the surface; advantageously, it can be adhesively bonded directly, without adhesion primer or addition of metal salt, to an unsaturated rubber matrix, such as natural rubber, by virtue of the possible functionalization of this graphene.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.