Lead-free glass material for use in sealing and, sealed article and method for sealing using the same
First Claim
1. The lead-free glass material for use in sealing which has a glass composition composed of V2O5 of 25-75% by weight, ZnO of 0-45% by weight and BaO of 15-55% by weight.
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Accused Products
Abstract
Provided with a glass composition including a network-former oxide composed of any one of or both of B2O3 and V2O5 of 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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Citations
8 Claims
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1. The lead-free glass material for use in sealing which has a glass composition composed of V2O5 of 25-75% by weight, ZnO of 0-45% by weight and BaO of 15-55% by weight.
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2. A lead-free glass material for use in sealing, which has a glass composition consisting essentially of (A) 1-60 parts by weight of one or both of TeO2 and Bi2O3 and (B) 100 parts by weight of said composition being an oxide consisting essentially of 25-75% by weight V2O5, 0-45% by weight ZnO and 15-55% by weight BaO.
- 3. A lead-free glass material for use in sealing consisting essentially of a refractory filler mixed with glass powder, said glass powder consisting essentially of V2O5 of 25-75% by weight, ZnO of 0-45% by weight and BaO of 15-55% by weight.
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5. A lead-free glass powder paste for use in sealing consisting essentially of V2O5 of 25-75% by weight, ZnO of 0-45% by weight and BaO of 15-55% by weight.
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6. A lead-free glass mixed powder paste for use in sealing including a refractory filler added to a glass powder paste, said glass powder paste consisting essentially of V2O5 of 25-75% by weight, ZnO of 0-45% by weight and BaO of 15-55% by weight.
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7. A lead-free glass powder paste for use in sealing consisting essentially of (A) 1-60 parts by weight of one or both of TeO2 and Bi2O3 and (B) 100 parts by weight of said paste being an oxide consisting essentially of 25-75% by weight V2O5, 0-45% by weight ZnO and 15-55% by weight BaO.
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8. A lead-free glass mixed powder paste for use in sealing including a refractory filler added to a glass powder paste, said glass powder paste consisting essentially of (A) 1-60 parts by weight of one or both of TeO2 and Bi2O3 and (B) 100 parts by weight of said paste being an oxide consisting essentially of 25-75% by weight V2O5, 0-45% by weight ZnO and 15-55% by weight BaO.
Specification