Fusion sealing materials and use in CRT

Details Fusion sealing materials and use in CRT Fusion sealing materials and use in CRT

1994-12-09

1996-05-07

Bell, Mark L.

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

501 18, 501 17, 501 24, 501 32, C03C 824

Patent

active

055146295

ABSTRACT:
A fusion seal between two surfaces, and a material to produce the seal, consisting essentially of 60-85 percent by weight of a SnO--ZnO--P.sub.2 O.sub.5 glass frit and 15-40 percent by weight of a mill addition including an additive selected from the group consisting of 15-40% zircon and 15-40% of an alumina-zircon mixture in which the alumina content is less than 10%, the additive amounts being based on the sealing material total, the mill addition being present in sufficient amount to provide a set point of at least 300.degree. C. The effect of the mill addition in a fusion seal finds particular application in uniting the faceplate and funnel members to form a cathode ray tube envelope.

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