Metal oxide compositions and methods
US6417244B1 · kind B1 · utility
26Cited by
37References
30Claims
0Family size
Assignees
Inventors
Key dates
| Filing date | Oct 13, 2000 |
| Grant date | Jul 9, 2002 |
| Priority date | — |
| Expiry date | Oct 13, 2020 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC01P2004/64
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Metal oxide and metal oxide-silica nanoparticles are disclosed wherein the surfaces thereof are complexed with a polymerizable, biocompatible, heterocyclic base. Polymerizable compositions are prepared by loading such nanoparticles into acrylate based monomer matrices, which compositions can then be photocured into X-ray opaque, transparent or translucent solids. Methods are disclosed for forming such complexed nanoparticles and compositions and for using such compositions as medical or dental restoratives.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.