Glass-ceramic materials, precursor glass thereof and...

Details Glass-ceramic materials, precursor glass thereof and... Glass-ceramic materials, precursor glass thereof and...

2006-06-23

2008-11-25

Group, Karl E (Department: 1793)

Compositions: ceramic

Ceramic compositions

Devitrified glass-ceramics

C501S007000, C501S069000, C501S070000, C501S071000, C065S033800

Reexamination Certificate

active

07456121

ABSTRACT:
The present invention relates to: novel glass-ceramics of β-quartz and/or of β-spodumene; articles made from said novel glass-ceramics; and ithium alumino-silicate glasses, which are precursors of said novel glass-ceramics; methods of preparing said novel glass-ceramics and articles made from said novel glass-ceramics. The present invention relates to the use of SnO2and of Br, as an agent for fining the glass-ceramic glass precursor.

REFERENCES:
patent: 5322819 (1994-06-01), Araujo et al.
patent: 5729381 (1998-03-01), Havens et al.
patent: 6930289 (2005-08-01), Siebers et al.
patent: A0437228 (1991-01-01), None
patent: A1398303 (2003-09-01), None
patent: 11100229 (1999-04-01), None
patent: 11100230 (1999-04-01), None
patent: 2003-048749 (2003-02-01), None
patent: WO 02/16279 (2002-02-01), None
International Preliminary Report on Patentability, PCT/EP2006/063667 filed Jun. 29, 2006.

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