GLASS COMPOSITION, GLASS FIBER, GLASS CLOTH, AND GLASS FIBER PRODUCTION METHOD

The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt%, for example, 40 ≤ SiO2 ≤ 60, 25 ≤ B2O3 ≤ 45, 0 < Al2O3 ≤ 18, 0 < R2O ≤ 5, and 0 ≤ RO ≤ 12, and satisfies at least one of: i...

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Bibliographic Details
Main Authors NAKAMURA, Aya, KURACHI, Junji, HATTORI, Kohji, FUKUCHI, Hidetoshi, SAWAI, Riku, NAWA, Yoshito, MIYAZAKI, Takaharu
Format Patent
LanguageEnglish
French
German
Published 27.04.2022
Subjects
CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS
CHEMISTRY
GLASS
JOINING GLASS TO GLASS OR OTHER MATERIALS
METALLURGY
MINERAL OR SLAG WOOL
SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS
SURFACE TREATMENT OF GLASS
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Summary:The present disclosure provides a novel glass composition that has a low permittivity and is suitable for mass production. A glass composition provided satisfies, in wt%, for example, 40 ≤ SiO2 ≤ 60, 25 ≤ B2O3 ≤ 45, 0 < Al2O3 ≤ 18, 0 < R2O ≤ 5, and 0 ≤ RO ≤ 12, and satisfies at least one of: i) SiO2 + B2O3 ≥ 80 and SiO2 + B2O3 + Al2O3 ≤ 99.9; and ii) SiO2 + B2O3 ≥ 78, SiO2 + B2O3 + Al2O3 ≤ 99.9, and 0 < RO < 10. Another glass composition provided includes SiO2, B2O3, Al2O3, R2O, and 3 < RO < 8 at the same contents as the above, and satisfies SiO2 + B2O3 ≥ 75 and SiO2+ B2O3+ Al2O3 < 97, where R2O = Li2O + Na2O + K2O and RO = MgO + CaO + SrO.
Bibliography:Application Number: EP20200825463