Lead-free black ceramic composition for filter and filter formed using the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
N/A
Issued Date -
Dec 29, 2005
app pub date -
Jun 23, 2005
filing date -
Jun 24, 2004
priority date (Note) -
Abandoned
status (Latency Note)
Importance
Abstract
Provided are an essentially lead-free black ceramic composition for a filter, a filter formed using the same, and a flat display device including the filter. The lead-free black ceramic composition may include at least one compound selected from the group consisting of B.sub.2O.sub.3, BaO, and ZnO; and at least one black pigment selected from the group consisting of TiO, CuO, NiO, MnO.sub.2, Cr.sub.2O.sub.3 and Fe.sub.2O.sub.3. Alternatively, the lead-free black ceramic composition may include Bi.sub.2O.sub.3; at least one compound selected from the group consisting of B.sub.2O.sub.3, SiO.sub.2, P.sub.2O.sub.5, Na.sub.2O.sub.3, Al.sub.2O.sub.3, BaO, ZnO and TiO.sub.2; and at least one black pigment selected from the group consisting of TiO, CuO, NiO, MnO.sub.2, Cr.sub.2O.sub.3 and Fe.sub.2O.sub.3. The lead-free black ceramic composition for a filter essentially does not contain PbO, which harms human beings and the environment. As a result, the use of the composition is not affected by regulations preventing the use of Pb. In addition, the composition can be calcined at a relatively low temperature and consume a small amount of energy.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully