1046617-A2 cites 12 patents.

A process for manufacturing synthetic quartz glass involves feeding a quartz glass-forming raw material to a high-temperature gas zone within a chamber, converting the quartz glass-forming raw material into quartz soot, and forming synthetic quartz glass from the soot. A suspended soot-discharging gas which has been flow-straightened in a suspended soot discharging direction flows through the chamber in the vicinity of the high-temperature gas zone. This process keeps free suspended soot from settling onto the surface of the quartz ingot where fusion and growth take place, thereby preventing the formation of bubbles within the quartz glass under growth.

Title
Synthetic quartz glass manufacturing process
Application Number
EP20000303479 20000425
Publication Number
1046617 (A2)
Application Date
April 25, 2000
Publication Date
October 25, 2000
Inventor
Matsuo Koji
JP
Otsuka Hisatoshi
JP
Yamada Motoyuki
JP
Assignee
Shinetsu Chemical Co
JP
IPC
C03B 19/14
C03C 03/06
C03B 37/014
C03B 20/00
C03B 19/00
C03B 08/00
C03C 03/06
C03B 37/014
C03B 20/00
C03B 19/14
C03B 08/04
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