Fining agents for silicate glasses
Granted 14 Feb 2012 · 4 office actions
Assignee: Corning Incorporated
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Attorney: Attorney · Log in to unlock
Inventors: Sinue Gomez, Matthew John Dejneka · Examiner: Elizabeth A Bolden
Life of the patent
4 dated eventsAbstract
A fining agent for reducing the concentration of seeds or bubbles in a silicate glass. The fining agent includes at least one inorganic compound, such as a hydrate or a hydroxide that acts as a source of water. In one embodiment, the fining agent further includes at least one multivalent metal oxide and, optionally, an oxidizer. A fusion formable and ion exchangeable silicate glass having a seed concentration of less than about 1 seed/cm 3 is also provided. Methods of reducing the seed concentration of a silicate glass, and a method of making a silicate glass having a seed concentration of less than about 1 seed/cm 3 are also described.
Claims
8 · 1 independent · depth 4Classifications
7 codes- C03C3/083
- C03C3/085
- C03C3/091
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2 priority documents›Priority documents — 2
| Type | Document | Date |
|---|---|---|
| provisional | US 61067130 | 26 Feb 2008 |
| related publication | US 20090215607 A1 | 27 Aug 2009 |
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