Production process of synthetic quartz glass

Details Production process of synthetic quartz glass Production process of synthetic quartz glass

2003-11-28

2010-11-30

Crispino, Richard (Department: 1791)

Glass manufacturing

Processes

Operating under inert or reducing conditions

C065S030100, C065S111000

Reexamination Certificate

active

07841211

ABSTRACT:
First of all, there is provided a production process of a synthetic quartz glass which has less impurity, has a high-temperature viscosity characteristic equal to or more than that of a natural quartz glass, and hardly deforms even in a high-temperature environment, and especially a production process of a highly heat resistant synthetic quartz glass which is free from the generation of bubbles and is dense. Secondly, there is provided a highly heat resistant synthetic quartz glass body which is easily obtained by the production process of the present invention, and especially a transparent or black quartz glass body which is free from the generation of bubbles, is dense, has high infrared absorption rate and emission rate, and has an extremely high effect for preventing diffusion of alkali metal. The process is a process of producing a highly heat resistant quartz glass body having an absorption coefficient at 245 nm of 0.05 cm−1or more, and the silica porous body was subjected to a reduction treatment, followed by baking, thereby forming a dense glass body.

REFERENCES:
patent: 4789389 (1988-12-01), Schermerhorn et al.
patent: 5043002 (1991-08-01), Dobbins et al.
patent: 5707908 (1998-01-01), Komine et al.
patent: 5766291 (1998-06-01), Sato et al.
patent: 5908482 (1999-06-01), Komine et al.
patent: 6012304 (2000-01-01), Loxley et al.
patent: 6044664 (2000-04-01), Yajima et al.
patent: 6381986 (2002-05-01), Loxley et al.
patent: 6499315 (2002-12-01), Nishimura et al.
patent: 2002/0001691 (2002-01-01), Sabi et al.
patent: 2002/0017114 (2002-02-01), Fukui et al.
patent: 2002/0038557 (2002-04-01), Matsuo et al.
patent: 2003/0051507 (2003-03-01), Ikuta et al.
patent: 54-127914 (1979-10-01), None
patent: 03-083833 (1991-04-01), None
patent: 04-254433 (1992-09-01), None
patent: 07-300324 (1995-11-01), None
patent: 09-309735 (1997-12-01), None
patent: 11-310423 (1999-11-01), None
patent: 2000-169155 (2000-06-01), None
patent: 2003-012331 (2003-01-01), None
patent: 2003-179207 (2003-06-01), None
patent: WO-03/002473 (2003-01-01), None
PCT International Search Report for PCT/JP03/15272 mailed on Mar. 9, 2004.

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