Novel nonprecious alloy suitable for fusion to porcelain
US3948653A · kind A · utility
4Cited by
1References
8Claims
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Key dates
| Filing date | Jun 2, 1975 |
| Grant date | Apr 6, 1976 |
| Priority date | — |
| Expiry date | Jun 2, 1995 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/056
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A nonprecious alloy for fixed dental restorations such as for porcelain fused to metal, plastic veneered crown and bridge, nonveneered crown and bridge, inlays, etc. includes the following ranges of constituents in percentages by weight: Constituent Proportional Range ______________________________________ Nickel Balance Chromium 12-15% Aluminum 0-1% Silicon 0-1% Tin 0-1.25% Manganese 0.01-0.75% Gallium 4.5-8% Molybdenum 5-8% Iron 3-10% ______________________________________ With the proviso that the combined percentage of tin, gallium and silicon must be at least 5.75%.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.