Nonprecious alloy for fusion to porcelain
US4053308A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 24, 1974 |
| Grant date | Oct 11, 1977 |
| Priority date | — |
| Expiry date | Dec 24, 1994 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC22C19/055
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
A nonprecious alloy for dental restorations fused to porcelain includes the following ranges of constituents in percentages by weight: ______________________________________ Constituent Proportional Range ______________________________________ Nickel Balance Chromium 10.0-22.0 Aluminum 1.0-5.0 Silicon 0.5-2.0 Manganese 0.01-0.2 Molybdenum 0.0-7.0 and one of the following Groups A or B: Group A Strontium, lanthanum and/or zirconium individually or as a combination of strontium and zirconium, and 0.2-2.0 either iron or tungsten 0.0-5.0 separately or in combination Group B Strontium, lanthanum and/or zirconium individually or as a combination of strontium and zirconium, 0.0-2.0 gallium, and 1.0-3.0 iron 0.0-1.0 ______________________________________
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.