Soda-lime-silica glass composition for a display screen
US8153540B2 · kind B2 · utility
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8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 11, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Oct 25, 2028 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC03C3/087
- WIPO fieldMaterials, metallurgy
- WIPO sectorChemistry
Abstract
The invention relates to the field of display screens, especially plasma screens. One subject of the invention is a glass composition which comprises the constituents below in the following weight proportions:said composition having an Al2O3/ZrO2 weight ratio varying from 0.7 to 1.8, preferably from 0.7 to 1.2. The substrates obtained have a strain point at least equal to 570° C. and a coefficient of thermal expansion α20-300 between 70 and 90×10−7/° C.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.