Reinforcement of dental and other composite materials
US5861445A · kind A · utility
53Cited by
22References
33Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 8, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | May 8, 2017 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C2214/30
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A composition useful as a restorative material includes a curable matrix with whiskers which preferably have a silicon dioxide containing coating thereon that are then silanized and may also include optional particulate filler of the type which may release fluorides. The polymeric matrix bonds more tightly to the whiskers due to the coating of silicon dioxide on the surface of the whiskers and the coaction between said silicon dioxide and the silane compound. Particles adhered to the whisker also enhance the mechanical properties by virtue of the whisker's surface being thereby roughened. A method of manufacture is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.