GLASS FILLER, PRODUCTION METHOD THEREFOR, AND RESIN-CONTAINING COMPOSITION COMPRISING GLASS FILLER

• Main Authors: YAGYU, Tomohiro, FUKUCHI, Hidetoshi
• Format: Patent
• Language: English; French; German
• Published: 06.12.2023
• Subjects: CHEMICAL COMPOSITION OF GLASSES, GLAZES, OR VITREOUSENAMELS; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GLASS; JOINING GLASS TO GLASS OR OTHER MATERIALS; METALLURGY; MINERAL OR SLAG WOOL; ORGANIC MACROMOLECULAR COMPOUNDS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS,MINERALS OR SLAGS; SURFACE TREATMENT OF GLASS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

Provided is a novel glass filler having a low permittivity. The glass filler provided includes a glass composition, wherein the glass composition includes, in wt%: 95 ≤ SiO2 ≤ 99.5; 0 ≤ B2O3 ≤ 2; 0.01 ≤ Al2O3 ≤ 4; 0 ≤ R2O ≤ 4; 0.01 ≤ RO ≤ 4; and 0 ≤ TiO2 ≤ 4, where RO is at least one selected from MgO, CaO, SrO, and ZnO, and R2O is at least one selected from Li2O, Na2O, and K2O.This glass filler can have a permittivity of less than 4 at 1 GHz.