Glass manufacturing – Processes – Sol-gel or liquid phase route utilized
Reexamination Certificate
2006-11-28
2006-11-28
Vincent, Sean (Department: 1731)
Glass manufacturing
Processes
Sol-gel or liquid phase route utilized
C065S017300, C065S017500, C065S385000, C065S440000, C501S012000
Reexamination Certificate
active
07140202
ABSTRACT:
The invention relates to a method for manufacturing optical glasses and colored glasses with the aid of a fluid phase sintering process from a basic material encompassing at least SiO.sub.2 powder as well as additives for reducing the temperature of the fluid phase sintering and/or melting process encompassing the following steps: the starting materials are dissolved in any sequence in a fluid medium to produce a solution as far as is possible and a suspension to the extent that they are not dispersed in solution; a greenbody is produced from the dissolved and dispersed starting materials; the greenbody is dried the dried greenbody is fluid-phase sintered at temperatures below 1200° C., in particular in the temperature range from 600° C. to 1200° C.
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Clasen Rolf
Freund Jochen
Gierke Monika
Hentschel Ruediger
Kolberg Uwe
Baker & Daniels
Schott AG
Vincent Sean
LandOfFree
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