GLASS, GLASS ARTICLE, METHOD OF MAKING THE GLASS, USE OF THE GLASS AND FLASH LAMP COMPRISING THE GLASS
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United States of America Patent
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Apr 16, 2024
Grant Date -
Apr 18, 2024
app pub date -
Oct 18, 2022
filing date -
Oct 18, 2022
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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.
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