HIGH MODULUS FIBERGLASS COMPOSITION WITH REDUCED ENERGY CONSUMPTION
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United States of America Patent
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Issued Date -
Oct 19, 2023
app pub date -
Apr 17, 2023
filing date -
Apr 18, 2022
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Abstract
A glass composition is disclosed that comprises SiO2 in an amount from 50 to 58% by weight; Al2O3 in an amount from 18 to 23% by weight; less than 18% by weight of CaO and MgO; at least 5% by weight of Y2O3 and La2O3, wherein Y2O3 and La2O3 are present in a ratio R1 (R1=Y2O3/La2O3) between 2 and 4. A glass fiber formed from the glass composition has a sonic fiber elastic modulus of at least 94.5 GPa.
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