Mechanically strong and transparent or translucent composites made using zirconium oxide nanoparticles
US6194481A · kind A · utility
48Cited by
13References
29Claims
0Family size
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Key dates
| Filing date | May 19, 1999 |
| Grant date | Feb 27, 2001 |
| Priority date | — |
| Expiry date | May 19, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/2998
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
Zirconium oxide nanoparticles having at least some surface acid sites functionalized with a silanating agent and at least some surface acid sites finctionalized with zirconate or a zircoaluminate. The nanoparticles are useful in composites comprising photopolymerizable alkene matrix monomers, and are primarily suitable for dental and medical restoration.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.