| 摘要 |
PURPOSE:To obtain glass fiber having low dielectric constant wherein m.p. and spinning temp. are comparatively low and therefore productivity is excellent by using glass having the specified composition. CONSTITUTION:The titled glass fiber is formed by the glass having composition consisting of by wt%, 45-65 SiO2, 9-20 Al2O3, 13-30 B2O3, 4-10 (CaO+ MgO+ZnO) and 0-5 (Li2O+Na2O+K2O), and <=5 dielectric constant.
|
