GLASS COMPOSITION FOR GLASS FIBER, GLASS FIBER, GLASS FIBER WOVEN FABRIC, AND GLASS FIBER REINFORCED RESIN COMPOSITION
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United States of America Patent
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Issued Date -
Oct 5, 2023
app pub date -
Dec 23, 2021
filing date -
Dec 23, 2021
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Abstract
To provide a glass composition for glass fiber that includes biosolubility and can achieve long fiber formation. The glass composition for glass fiber of the present invention includes SiO2 in the range of 35.0 to 55.0% by mass, B2O3 in the range of 10.0 to 30.0% by mass, Al2O3 in the range of 14.5 to 30.0% by mass, and CaO and MgO in the range of 8.7 to 25.0% by mass in total, with respect to the total amount, and the content S of SiO2, the content B of B2O3, the content A of Al2O3, the content C of CaO, and the content M of MgO satisfy the following formula (1):
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