Use of carbon-based nanofillers at a very low content for the UV stabilization of composite materials
US9896564B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2013 |
| Grant date | Feb 20, 2018 |
| Priority date | — |
| Expiry date | Jun 14, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/642
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
The use of very low concentrations of carbon nanofillers selected from among carbon nanotubes, carbon nanofibers, graphene or a mixture of same in any proportions, in order to improve resistance to ageing, in particular protection against ultraviolet (UV) light, of a composite material based on a polymer matrix. A composite product comprising a composite material, the composite material stabilized with respect to UV light using a content of between 1 ppm and 0.1% by weight, of carbon-based nanofillers chosen from carbon nanotubes, carbon nanofibers, graphene or a mixture of these in all proportions, wherein the composite product is selected from yarns, films, tubes, fibers, and nonwovens.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.