Lead-free glass material for use in sealing and, sealed...

Details Lead-free glass material for use in sealing and, sealed... Lead-free glass material for use in sealing and, sealed...

2005-06-21

2008-09-16

Green, Anthony J (Department: 1793)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S017000, C501S021000, C501S026000, C501S032000

Reexamination Certificate

active

07425518

ABSTRACT:
Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3and V2O5of 20-80% by weight, ZnO of 0-60% by weight and BaO of 0-80% by weight, wherein at least one of ZnO and BaO is included as an essential ingredient. The present invention is a glass material for use in sealing, which is of lead-free series, can be used for sealing at a low processing temperature and within a wide temperature range, has a low thermal expansion coefficient, superior adhesion, superior sealing processability, superior adherence, superior chemical stability, superior strength and the like and comprises sufficient practical performance to substitute for lead glass.

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