1
Jean Florent Campion: Method of manufacturing a silica powder and use of such a powder in making an optical fiber preform. Alcatel, Sughrue Mion Zinn Macpeak & Seas PLLC, April 11, 2000: US06047568 (10 worldwide citation)

A method of manufacturing a silica powder using a sol-gel technique, wherein a suspension consisting of synthetic silica soot, having a specific surface area of less than 80 m.sup.2 /g, is made in water to form a concentration of 50% to 75% by weight of silica; the suspension is gelled; the resultin ...


2
Jean Florent Campion, Jacques Goudeau, Jean Francois Chariot, Christelle Lavallade: Method of manufacturing a silica powder. Alcatel, Sughrue Mion Zinn Macpeak & Seas PLLC, June 6, 2000: US06071487 (8 worldwide citation)

In the method, a suspension of silica particles in water is provided, the suspension is gelled, the resulting gel is dried under microwaves, the dried gel is fractioned into silica granules having a diameter lying in the range 10 .mu.m to 1000 .mu.m, having an apparent density of about 0.5 g/cm.sup. ...