Compositions: ceramic – Ceramic compositions – Glass compositions – compositions containing glass other than...
Reexamination Certificate
2007-06-05
2010-06-15
Group, Karl E (Department: 1793)
Compositions: ceramic
Ceramic compositions
Glass compositions, compositions containing glass other than...
C501S032000, C065S033300, C065S033900, C065S134300
Reexamination Certificate
active
07737062
ABSTRACT:
The invention provides an opalescent forehearth color concentrate comprising a non-smelted agglomerated interspersion of particles for use in coloring glass, said concentrate comprising by weight from about 10% to about 70% of a glass component and from about 30% to about 90% of one or more opalescent pigments, the glass component comprising by weight from about 10% to about 50% ZnO and about 15 to about 60% SiO2. The invention also provides a method of using the color concentrate.
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Ackerman Kenneth R.
Bauer John M.
Sakoske George E.
Ferro Corporation
Group Karl E
Rankin , Hill & Clark LLP
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