Lead-, cadmium- and barium-free frits for ceramic glazes
US5264398A · kind A · utility
7Cited by
6References
2Claims
0Family size
Assignee
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Key dates
| Filing date | Aug 3, 1992 |
| Grant date | Nov 23, 1993 |
| Priority date | — |
| Expiry date | Aug 3, 2012 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C8/04
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
A frit composition for ceramic glazes is disclosed which is free of lead, cadmium and also barium. The composition contains SiO.sub.2, B.sub.2 O.sub.3, Al.sub.2 O.sub.3, alkali metal oxide, CaO, ZnO, and optionally MgO, SrO, TiO.sub.2, Bi.sub.2 O.sub.3, P.sub.2 O.sub.5 or ZrO.sub.2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.