Lead-free low-melting-point glass composition having acid resistance

A technology of low-melting glass and composition, applied in the direction of cathode ray/electron beam tube casing/container, cathode ray/electron beam tube introduction device, gas discharge tube/container, etc. Issues such as not being able to fully function

Inactive Publication Date: 2011-02-09
CENT GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, in general, many lead-free glasses are unstable glasses, and when processed at high temperatures, there is a problem that crystallization occurs during firing and the functions cannot be fully exhibited.

Method used

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  • Lead-free low-melting-point glass composition having acid resistance
  • Lead-free low-melting-point glass composition having acid resistance

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Embodiment Construction

[0015] The present invention provides a lead-free low-melting point glass with acid resistance, which is an insulating glass material for electronic material substrates represented by field emission displays, and is characterized in that the composition of the glass material contains 12 to 35 Mass% SiO 2 , 3-20% by mass of B 2 o 3 , 0 to 8% by mass of R 2 O (from Li 2 O, Na 2 O, K 2 At least one of O), 35 to 75% by mass of Bi 2 o 3 , and substantially free of lead.

[0016] SiO 2 It is a glass forming component and is an essential component for obtaining high acid resistance. In addition, by combining with another glass-forming component B 2 o 3 Coexistence can form a stable glass, so SiO can be contained in the range of 12 to 35% (mass%, the same below). 2 . If it exceeds 35%, the softening point of the glass will rise, making molding and handling difficult. On the other hand, when it is less than 12%, acid resistance will fall. More preferably, it is in the ra...

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Abstract

Disclosed is a lead-free low-melting-point glass having acid resistance, which substantially contains no PbO, while containing 12-35% by mass of SiO2, 3-20% by mass of B2O3, 35-75% by mass of Bi2O3 and 0-8% by mass of at least one compound selected from Li2O, Na2O and K2O. A lead-free low-melting-point glass composition containing a powder of the glass and a ceramic powder filler is also disclosed.

Description

technical field [0001] The present invention relates to a low melting point glass, which is used as a field emission display panel, a plasma display panel, a liquid crystal display panel, an electroluminescent panel, a fluorescent display panel, an electrochromic display panel, a light emitting diode display panel, a gas Insulating film materials and hermetic sealing materials for electronic material substrates represented by discharge type display panels and the like. Background technique [0002] Conventionally, glass has been used as an adhesive and hermetic sealing material for electronic parts, or as a coating material for protecting and insulating electrodes and resistors formed in electronic parts. Especially with the development of electronic components in recent years, field emission display panels, plasma display panels, liquid crystal display panels, electroluminescence panels, fluorescent display panels, electrochromic display panels, light-emitting diode display...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01J29/90C03C8/02H01J11/02C03C8/04C03C8/14
CPCC03C3/064H01J11/10C03C3/066C03C8/02C03C17/04H01J29/863C03C8/16H01J29/86C03C8/04H01J11/34
Inventor 滨田润富永耕治早川直也
Owner CENT GLASS CO LTD
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