| 摘要 |
PROBLEM TO BE SOLVED: To obtain leadless low melting point glass which is usable for adhesive sealing, coating, etc. of plasma display panels, fluorescent display tubes, etc. and of which the fired matter is colorless or slightly coloring. SOLUTION: This leadless low melting point glass consists of, by molar %, 2 to 20 SiO2, 15 to 35 B2O, 20 to 50 ZnO, 1 to 18 Bi2O3, 2 to 15 Li2O+Na2O +K2O, 0 to 22 MgO+CaO+SrO+BaO and 0 to 8 Al2O3+ZrO2+SnO3+CeO2.
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