Title:
PRODUCTION OF SILICA PRODUCT
Document Type and Number:
Japanese Patent JP3242885
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a sol-gel method useful for production of both an overclad tube and a substrate tube.
SOLUTION: A silica dispersion liquid incorporating a stabilizer is fed and a pH value of the silica dispersion liquid is made in a range of about 10.5-13.5, and a gelling agent is added to the silica dispersion liquid in order to induce a gelatification, and the gel obtained by the gelatification is extruded to form a material body, thus a silica material body is produced from the gel ≤0.5 wt.% high polymer contents.
Inventors:
Debra Ann Fleming
Philip fubauer
David Wilfred Johnson Jr.
John Barnetter Mac Chesney
Thomas Edward Stockert
Frederick W. Waltz Jr.
Philip fubauer
David Wilfred Johnson Jr.
John Barnetter Mac Chesney
Thomas Edward Stockert
Frederick W. Waltz Jr.
Application Number:
JP25283798A
Publication Date:
December 25, 2001
Filing Date:
September 07, 1998
Export Citation:
Assignee:
Lucent Technologies, Inc.
International Classes:
C03B8/02; C03B19/12; C03B20/00; C03B37/012; C04B35/14; C04B35/624; (IPC1-7): C03B20/00; C03B37/012
Domestic Patent References:
| JP6183768A | ||||
| JP4124042A | ||||
| JP61227935A | ||||
| JP63182222A |
Attorney, Agent or Firm:
Hirofumi Mitsumata
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