Lead-free low softening point glass
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United States of America Patent
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Jan 24, 2006
Grant Date -
Nov 17, 2005
app pub date -
May 11, 2004
filing date -
May 11, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Disclosed is a lead-free low softening point glass whose composition lies within the system SnO—P2O5 and containing over 5 to 30 mol % of MnO. The addition of MnO allows the water resistance and coefficient of thermal expansion of the glass to be improved without spoiling its feature of a low softening point. The lead-free low softening point glass can be prepared through a simplified production process.
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