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

• Main Authors: FUKUCHI HIDETOSHI, KURACHI JUNJI, NAWA YOSHITO, NAKAMURA AYA, MIYAZAKI TAKAHARU, HATTORI TAKESHI, SAWAI RIKU
• Format: Patent
• Language: Chinese; English
• Published: 28.01.2022
• 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

The present invention provides a novel glass composition which has low permittivity and which is suitable for mass-production. The glass composition provided by the present invention contains, represented in percentages by weight, for instance, 40 <= SiO2 <= 60, 25 <= B2O3 <= 45, 0 < Al2O3 <= 18, 0 < R2O <= 5, and 0 <= RO <= 12, while achieving at least one from among: i) SiO2+B2O3 >= 80, and SiO2+B2O3+Al2O3 <= 99.9, and ii) SiO2+B2O3 >= 78, and SiO2+B2O3+Al2O3 <= 99.9, 0 < RO < 10. Another glass composition provided by the present invention contains SiO2, B2O3, Al2O3, and R2O, with the respective ratios thereof falling within the same ranges as those given above, and 3 < RO < 8, while achieving SiO2+B2O3 >= 75, and SiO2+B2O3+Al2O3 < 97. However, R2O = Li2O+Na2O+K2O, and RO = MgO+CaO+SrO. 本公开提供介电常数低、适合于量产的新的玻璃组合物。所提供的玻璃组合物中，以重量％表示，例如包含40≤SiO2≤60、25≤B2O3≤45、0＜Al2O3≤18、0＜R2O≤5、0≤RO≤12，i)和ii)中的至少一者成立：i)SiO2+B2O3≥80、SiO2+B2O3+Al2O3≤99.9；ii)SiO2+B2O3≥78、SiO2+B2O3+Al2O3≤99.9、0＜RO＜10。所提供的其他玻璃组合物包含含有率与上述范围相同的SiO2、B2O