Patent · US Active

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

US11492282B2 · kind B2 · utility

0Cited by

143References

19Claims

0Family size

Assignee

HERAEUS QUARZGLAS GMBH & CO. KG · DE

Inventors

Nigel Whippey · Seligenstadt, DE
Boris Gromann · Aschaffenburg, DE
Matthias Söhn · Speyer, DE

Key dates

Filing date	Dec 16, 2016
Grant date	Nov 8, 2022
Priority date	—
Expiry date	Dec 18, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P40/57
WIPO fieldMeasurement
WIPO sectorInstruments

Abstract

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 particles in an oven and making a quartz glass body out of at least part of the glass melt. The oven has a gas outlet through which gas is removed from the oven, wherein the dew point of the gas on exiting the oven through the gas outlet is less than 0° C. One aspect further relates to a quartz glass body which is obtainable by this process. One aspect further relates to a light guide, an illuminant and a formed body, which are each obtainable by further processing of the quartz glass body.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.