Dental curable composition and artificial tooth
US6063830A · kind A · utility
17Cited by
7References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 4, 1997 |
| Grant date | May 16, 2000 |
| Priority date | — |
| Expiry date | Dec 4, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61K6/893
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention provides a dental curable material suitable for a production of an artificial teeth having a strong toughness, wear resistance, transparency and moldability, which comprises a silane-treated silica uniformely dispersed in urethane (meth)acrylate (a): said silica has a 1 to 85 nm, with at least one silane compound represented by the formula (1): EQU YnSiX.sub.4-n (1) wherein Y is a hydrocarbon group or a reactive group containing a vinyl-polymerizable group; X is a hydrolyzable group; and n is an integer of 1, 2 or 3, and is uniformly dispersed in a urethane (meth)acrylte (b).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.