Patent · US Active

Glass, glass article, method of making the glass, use of the glass and flash lamp comprising the glass

US11958771B1 · kind B1 · utility

0Cited by

5References

17Claims

0Family size

Assignee

Schott AG · DE

Inventors

Andre Petershans · Nabburg, DE
Carina Bronnbauer · Eichigt, DE
Sebastian Heinl · Mantel, DE
Hans-Joachim Lippert · Hochstädt, DE

Key dates

Filing date	Oct 18, 2022
Grant date	Apr 16, 2024
Priority date	—
Expiry date	Oct 18, 2042

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03B5/235
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A glass has a coefficient of thermal expansion in a temperature range from 20° C. to 300° C. of 4.5 ppm/K or less, and a T4 temperature, defined as the temperature at which the glass has a viscosity of 104 dPa*s, at 1500° C. or more, and having a reboil propensity score of less than 10 measured in a reboil propensity test. The reboil propensity score is determined as a number of bubbles per glass rod formed from the glass after the reboil propensity test.

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