0578553-A1 is referenced by 25 patents and cites 7 patents.

Process for the manufacture of a silica powder by a sol-gel method, characterised in that - a suspension in water of synthetic silica soot, with a specific surface lower than 80 m/g is produced, in a proportion of 50 % to 75 % by weight of silica, - the said suspension is gelled, - the gel obtained is dried under microwaves and the dry gel is broken up into silica granules exhibiting an apparent density of the order of 0.5 g/cm to 0.6 g/cm and a porosity of less than 20 %, - a screening between 100 mu m and 500 mu m is performed. m

Title
Process of making a silica powder and use of such a powder in the manufacture of optical fibre preforms.
Application Number
EP19930401736 19930705
Publication Number
0578553 (A1)
Application Date
July 5, 1993
Publication Date
January 12, 1994
Inventor
Campion Jean Florent
FR
Assignee
Alcatel
NL
IPC
C03C 01/00
C03B 37/012
C03B 08/02
C03B 19/10
G02B 06/00
C03C 01/00
C03B 37/016
C03B 37/012
C03B 20/00
C03B 19/00
C03B 08/02
C01B 33/00
G02B 06/00
C03C 01/00
C03B 37/016
C03B 37/012
C03B 20/00
C03B 19/10
C03B 08/02
C01B 33/18
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