Preparation of a quartz glass body in a multi-chamber oven

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United States of America Patent

PATENT NO 11708290
APP PUB NO 20200361806A1
SERIAL NO

16984379

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Abstract

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One aspect relates to a process for the preparation of a quartz glass body, including providing a silicon dioxide granulate, wherein the silicon dioxide granulate was made from pyrogenic silicon dioxide powder and the silicon dioxide granulate has a BET surface area in a range from 20 to 40 m2/g, making a glass melt out of silicon dioxide granulate in an oven and making a quartz glass body out of at least part of the glass melt. The oven has at least a first and a further chamber connected to one another via a passage. The temperature in the first chamber is lower than the temperature in the further chambers. On aspect relates to a quartz glass body which is obtainable by this process. One aspect relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.

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Patent Owner(s)

Patent OwnerAddress
HERAEUS QUARZGLAS GMBH & CO KGHERAEUSSTRASSE 12 - 14 HANAU 63450

International Classification(s)

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Gromann, Boris Aschaffenburg, DE 25 177
Hünermann, Michael Alzenau, DE 34 174
Kpebane, Abdoul-Gafar Hanau-Mittelbuchen, DE 11 105
Lehmann, Walter Leipzig, DE 37 231
Nielsen, Nils Christian Göllheim, DE 16 146
Otter, Matthias Hamm, DE 25 238
Söhn, Matthias Darmstadt, DE 7 15
Whippey, Nigel Robert Seligenstadt, DE 14 135

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