Preparation of carbon-doped silicon dioxide granulate as an intermediate in the preparation of quartz glass

M Otter, T Kayser, M Wittrin - US Patent 11,339,076, 2022 - Google Patents
One aspect relates to a process for the preparation of a quartz glass body. The process
includes providing a silicon dioxide granulate I prepared from a pyrogenically produced …

Preparation of a synthetic quartz glass grain

M Arndt, M Otter, W Lehmann, M Hünermann… - US Patent …, 2020 - Google Patents
The invention relates to a process for the preparation of a quartz glass grain comprising the
process steps i.) Providing a silicon dioxide granulate from a pyrogenically produced silicon …

Preparation of a quartz glass body in a melting crucible of refractory metal

M Otter, W Lehmann, M Hünermann… - US Patent …, 2022 - Google Patents
The invention relates to a process for preparing a quartz glass body comprising the process
steps i.) Providing a silicon dioxide granulate, ii.) Making a glass melt from the silicon …

Glass fibers and pre-forms made of homogeneous quartz glass

M Hünermann, A Hofmann, H Fabian, M Otter… - US Patent …, 2020 - Google Patents
One aspect relates to a light guide comprising a jacket and one or more cores, wherein the
jacket surrounds the cores. Each core has a refractive index profile perpendicular to the …

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

M Otter, W Lehmann, M Hünermann… - US Patent …, 2020 - Google Patents
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 …

Preparation of an opaque quartz glass body

M Otter, M Hünermann, NC Nielsen, F Wessely… - US Patent …, 2022 - Google Patents
One aspect relates to a process for the preparation of a quartz glass body. The process
includes providing a silicon dioxide granulate from a pyrogenically produced silicon dioxide …

Preparation of quartz glass bodies with dew point monitoring in the melting oven

NR Whippey, B Gromann, S Matthias - US Patent 11,492,282, 2022 - Google Patents
One aspect relates to a process for the preparation of a quartz glass body. The process
includes providing silicon dioxide particles, making a glass melt out of the silicon dioxide …

Spray granulation of silicon dioxide in the preparation of quartz glass

M Otter, M Wittrin, M Wilde - US Patent 11,053,152, 2021 - Google Patents
One aspect relates to a process for the preparation of a quartz glass body. The process
includes providing a silicon dioxide granulate, making a glass melt out of the silicon dioxide …

Preparation of quartz glass bodies from silicon dioxide granulate

M Otter, W Lehmann, M Hünermann… - US Patent …, 2022 - Google Patents
One aspect relates to a process for the preparation of a quartz glass body including,
providing a silicon dioxide granulate obtainable from a silicon dioxide powder, wherein the …

Method for producing synthetic quartz glass

KU Badeke, N Otto, M Trommer, H Laudahn… - US Patent …, 2016 - Google Patents
The invention relates to a method for producing synthetic quartz glass by vaporizing a
polyalkylsiloxane as a liquid SiO 2 feedstock (105), converting the vaporized SiO 2 …