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Sealing materials and glasses

  • US 5,089,446 A
  • Filed: 10/09/1990
  • Issued: 02/18/1992
  • Est. Priority Date: 10/09/1990
  • Status: Expired due to Term
First Claim
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1. A fusion sealing material composed of a tin-phosphorus oxyfluoride glass having a low transition temperature and a mill addition selected from the group consisting of Invar, molybdenum, tungsten, lead orthophosphate, magnesium pyrophosphate, a magnesium pyrophosphate with at least a portion of the magnesium ions replaced by at least one cation selected from the group composed of cobalt, arsenic, zinc, iron, aluminum and zirconium, and a crystallized phosphate glass composed essentially of P2 O5 and one or more cations selected from the group composed of magnesium, cobalt, arsenic, zinc, iron, aluminum and zirconium.

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