C - Chemistry – Metallurgy – 03 – C
Patent
C - Chemistry, Metallurgy
03
C
32/23, 117/85
C03C 17/00 (2006.01) C03B 37/014 (2006.01)
Patent
CA 1188576
ABSTRACT OF THE DISCLOSURE A process for producing a porous optical fiber preform by hydrolyzing a gaseous glass forming material with a flame from an oxyhydrogen burner and depositing the resulting soot in a rod form in a muffle furnace is described, wherein the muffle furnace is supplied with a gas other than that from the oxyhydrogen burner, and said gas is maintained at a constant temperature.
392142
Edahiro Takao
Kuwahara Toru
Miyajiri Tetsuo
Yokota Hiroshi
Nippon Telegraph & Telephone Public Corporation
Riches Mckenzie & Herbert Llp
Sumitomo Electric Industries Ltd.
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