Glass composition, stem and bulb for lamps
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Mar 4, 2003
Grant Date -
N/A
app pub date -
Feb 8, 1999
filing date -
Feb 10, 1998
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
For environmental protection, a glass composition for lamps that can suppress the consumption of mercury by the glass is provided. An embodiment of the glass composition consists essentially of, expressed in percentages by weight: SiO.sub.2 : 65-75, Al.sub.2 O.sub.3 : 0.5-4, Na.sub.2 O: 1-8, K.sub.2 O: 1-8, Li.sub.2 O: 0-2, MgO: 0.5-5, CaO: 1-8, SrO: 1-7, BaO: 3.5-7, B.sub.2 O.sub.3 : 0-3, Sb.sub.2 O.sub.3 : 0-1, Fe.sub.2 O.sub.3 : 0-0.2, TiO.sub.2 : 0-1, CeO.sub.2 : 0-1; and the total amount of Na.sub.2 O, K.sub.2 O and Li.sub.2 O is not more than 13 weight %. The glass composition is substantially free of lead.
First Claim
Family
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
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