Amber glass

Details Amber glass Amber glass

2006-09-21

2010-12-07

Lorengo, Jerry (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S068000, C501S069000, C501S072000, C313S480000

Reexamination Certificate

active

07846859

ABSTRACT:
A colored glass has a formula of R′20—RO—SiO2, wherein R′ is an alkali metal element and R is an alkaline earth metal element. The colored glass comprises between 0.01 and 1% by weight of molybdenum expressed as MoO3and between 0.01 and 2.5% by weight of sulfur expressed as SO3. The colored glass further comprises between 7.8 and 14% by weight of potassium expressed as K2O and between 0.68 and 5.42% by weight of sodium expressed as Na2O. The sum of the concentrations of potassium and sodium expressed as K2O and Na2O is between 11 and 17% by weight.

REFERENCES:
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patent: 5037470 (1991-08-01), Matzen et al.
patent: 6469443 (2002-10-01), Bryant et al.
patent: 2002/0042338 (2002-04-01), Oyama et al.
patent: 2002/0117950 (2002-08-01), Ulenaers et al.
patent: 2005/0209083 (2005-09-01), Takagi et al.
patent: 1193226 (2002-04-01), None
patent: 0246116 (2002-06-01), None

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