Low melting point tin phosphate-based glass frit
AssigneesYEJ GLASS Co., Ltd., YEK Glass Co., Ltd.
InventorsHiroshi Yoshinaga, Yoshinari Takao
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Abstract
A low melting point tin phosphate-based glass frit contains, in mol %, 15-75% of SnO, 0-40% of SnF2, 10-50% of P2O5, 0-30% of ZnO, 0-5% of Al2O3, 0-30% of B2O3, 0-5% of In2O3, 0-5% of BaO, and 0-5% of SiO2, does not contain Pb, and exhibits a temperature difference of 50° C. or less between the glass transition point to the glass softening point. The glass frit has a low softening point temperature and a conventional glass transition point temperature without using a substance that places a burden on the environment such as lead.
Claims4
A low melting point tin phosphate-based glass frit comprising, in mol %, 44.7 to 75% of SnO, 0 to 40% of SnF2, 10 to 50% of P2O5, 0 to 30% of ZnO, 0 to 5% of Al2O3, 0 to 30% of B2O3, 0.1 to 5% of In2O3, 1.2 to 5% of BaO, and 0 to 5% of SiO2.
Dependencies are inferred from the claim text.