Composite material including three-dimensional (3D) graphene and maleated copolymers
US11591457B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2022 |
| Grant date | Feb 28, 2023 |
| Priority date | — |
| Expiry date | Mar 30, 2042 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08L2207/066
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
A composite material includes a combination including a thermoplastic resin mixed with a polypropylene-graft-maleic anhydride (PPgMA), and a plurality of carbon particles mixed in the combination. The plurality of carbon particles may include a first region having a relatively low concentration of carbon particles, and a second region having a relatively high concentration of carbon particles, at least some of the plurality of carbon particles having exposed carbon surfaces with carbon atoms bonded to molecular sites on adjacent PPgMA molecules and oxidized with one or more oxygen-containing groups. In some aspects, composite material further includes between 80 wt. % and 90 wt. % of the thermoplastic resin, between 0.5 wt. % and 15 wt. % of the PPgMA, and between 0.1 wt. % to 7 wt. % of carbon particles. The composite material may also include a plurality of pores, formed in the combination, and configured to be infiltrated by the PPgMA.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.