Method for producing ultra-high purity, optical quality...

Details Method for producing ultra-high purity, optical quality... Method for producing ultra-high purity, optical quality...

2006-07-04

2006-07-04

Lopez, Carlos (Department: 1731)

Glass manufacturing

Processes

With shaping of particulate material and subsequent fusing...

C065S017500, C065S017600

Reexamination Certificate

active

07069746

ABSTRACT:
A method for producing ultra-high purity, optical quality, glass articles is disclosed which involves:1. compacting metaloxide or metalloidoxide to granules having a mean particle size of less than about 1 millimeter;2. optionally fully sintering the granules to produce high purity, artificial sand;3. casting the artificial sand by conventional techniques, such as, slip casting, to form a high density, porous, green body;4. optionally drying and partially sintering the green body;5. optionally fully sintering the green body under vacuum; and6. optionally hot isostatic pressing the green body.

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patent: 5776240 (1998-07-01), Deller et al.
patent: 6752864 (2004-06-01), Meyer et al.
patent: 0292179 (1988-11-01), None
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patent: 0535388 (1993-04-01), None
patent: 1074512 (2001-02-01), None
patent: 63265835 (1988-11-01), None

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