| 摘要 |
<p>A glass having a good combination of anti-misting properties and durability to water is produced from an inorganic glass composition comprising:(a) P2O5 - 52 to 72 mole %(b) one or more oxides selected from B2O3, SiO2 and Al2O3 - in total more than 3.5 mole % and not more than 12 mole %.(c) PbO - 1 to 12 mole% and(d) alkali metal oxides, alkaline earth metal oxides or zinc oxide in total 4 to 30 mole %.</p> |
