Glass manufacturing – Processes – Fining or homogenizing molten glass
Reexamination Certificate
2011-05-24
2011-05-24
Group, Karl E (Department: 1731)
Glass manufacturing
Processes
Fining or homogenizing molten glass
C065S134100, C065S134300, C501S027000
Reexamination Certificate
active
07946130
ABSTRACT:
In the process of producing a glass, a glass melt is formed from an initial glass batch, an inorganic or organic peroxide is include in the glass melt as a refining agent in an amount suitable for refining, and then the glass melt is refined at a refining temperature equal to or greater than a decomposition temperature of the inorganic or organic peroxide. The inorganic peroxides used in the glass-making process only include cations that are already present in components of the initial glass batch. The organic peroxides used in the glass-making process are chosen so that the organic residue remaining in the melt after release of oxygen is decomposed to volatile water and CO2.
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Bolden Elizabeth A
Group Karl E
Schott AG
Striker Michael J.
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