Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1983-09-28
1985-10-15
Schor, Kenneth M.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 31, 65 312, 65 341, 65 17, 501 12, C03B 3701, C03B 3702
Patent
active
045472106
ABSTRACT:
Preforms for drawing into glass fibers are relatively quickly produced by extruding filaments or tapes from polysiloxanes and/or heteropolysiloxanes and curing such filaments. A cylindrical wound body is produced from such cured filaments by winding such filaments onto an arbor. The wound body is converted, by heating in an oxidizing atmosphere, into an oxide body comprised of SiO.sub.2 and, under certain conditions, containing doping amounts of select heteroelements present in the heteropolysiloxane. After removal of the arbor, a gas stream containing chlorine gas is flushed at a temperature of about 1000.degree. to 12000.degree. C. through the oxide body to remove any traces of water and the dry oxide body is sintered into glass at a temperature of about 1200.degree. 1500.degree. C. The tubular preform thereby attained is collapsed and a glass fiber is drawn therefrom. This process is particularly suitable for the fabrication of gradient optical fibers. A desired refractive index profile can already be taken into consideration in the production of the wound body.
REFERENCES:
patent: 2908545 (1959-10-01), Teja
patent: 3314817 (1967-04-01), Tiede
patent: 3907954 (1975-09-01), Mansmann et al.
patent: 4100240 (1978-07-01), Bassani
patent: 4173459 (1979-11-01), Aulich et al.
patent: 4317668 (1982-03-01), Susa et al.
patent: 4323381 (1982-04-01), Matsuyama et al.
patent: 4417910 (1983-11-01), Passaret
patent: 4426216 (1984-01-01), Satoh et al.
K. Susa et al., "New Optical Fibre Fabrication Method", Electronics Letters, vol. 18, (1982) pp. 499-500.
J. G. Grabmaier et al., "Production of Glass Fibers for Optical Communications", Chem. Engineering Technology, vol. 51 (1979), pp. 612-627.
Grabmaier et al., "Production of Glass Fibres for Optical Communication Systems" Ger. Chem. Eng., vol. 3 (1980) pp. 8-20.
Mukherjee "Sol-gel Processes in Glass Science and Technology", Journal of Non-crystalline Solids, vol. 42 (1980) pp. 477-488.
Schor Kenneth M.
Siemens Aktiengesellschaft
LandOfFree
Process for producing a glass body does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Process for producing a glass body, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for producing a glass body will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2431436