Sealing glass compositions and method
US4131478A · kind A · utility
13Cited by
11References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 26, 1977 |
| Grant date | Dec 26, 1978 |
| Priority date | — |
| Expiry date | Aug 26, 1997 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C8/245
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A solder glass/ceramic composition and method for sealing television picture tube components wherein the composition remains vitreous throughout the sealing process. The composition comprises a mixture of 9-15 weight percent aluminum oxide and 91-85 weight percent solder glass. The solder glass components comprise, in weight percent of the glass alone, SiO.sub.2 about 2-4 percent, PbO about 64-66 percent, PbF.sub.2 about 5-10 percent, ZnO about 6-9 percent, CdO about 4-6 percent, and B.sub.2 O.sub.3 about 12-14 percent.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.