EP 0996597 A1 20000503 - GERMANIUM CHLORIDE AND SILOXANE FEEDSTOCK FOR FORMING SILICA GLASS AND METHOD
Title (en)
GERMANIUM CHLORIDE AND SILOXANE FEEDSTOCK FOR FORMING SILICA GLASS AND METHOD
Title (de)
GERMANIUMCHLORID- UND SILOXANREAGENTEN FÜR DIE HERSTELLUNG VON SILICAGLAS UND VERFAHREN
Title (fr)
CHLORURE DE GERMANIUM ET MATIERE PREMIERE DE SILOXANE DESTINES A LA FORMATION DE VERRE DE SILICE ET PROCEDE AFFERENT
Publication
Application
Priority
- US 9813401 W 19980624
- US 5273797 P 19970708
Abstract (en)
[origin: WO9902459A1] Disclosed is a method of making optical waveguide preforms and optical waveguides which may be drawn to a fiber. A silica forming feedstock which includes a mixture of siloxane and germanium chloride and an optical waveguide preform manufacturing apparatus is also disclosed. Further disclosure includes the mixing prior to deposition and use of high purity siloxane with high purity germanium chloride to produce germanium doped silica. The delivery lines for the feedstock to the deposition side may be heated to 175 DEG C-200 DEG C.
IPC 1-7
IPC 8 full level
C03B 8/04 (2006.01); C03B 19/14 (2006.01); C03B 37/014 (2006.01); C03B 37/018 (2006.01)
CPC (source: EP KR)
C03B 19/1415 (2013.01 - EP); C03B 37/014 (2013.01 - KR); C03B 37/01413 (2013.01 - EP); C03B 2201/31 (2013.01 - EP); C03B 2207/32 (2013.01 - EP); C03B 2207/81 (2013.01 - EP)
Citation (search report)
See references of WO 9902459A1
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
WO 9902459 A1 19990121; AU 743831 B2 20020207; AU 8473098 A 19990208; BR 9810379 A 20000905; CA 2288769 A1 19990121; CN 1259109 A 20000705; EP 0996597 A1 20000503; ID 24873 A 20000831; JP 2001509469 A 20010724; KR 20010021592 A 20010315; TW 460424 B 20011021
DOCDB simple family (application)
US 9813401 W 19980624; AU 8473098 A 19980624; BR 9810379 A 19980624; CA 2288769 A 19980624; CN 98805831 A 19980624; EP 98935493 A 19980624; ID 20000242 A 19980624; JP 2000501993 A 19980624; KR 20007000150 A 20000107; TW 87111179 A 19980707