JPS5727938A - Opal glass composition - Google Patents
Opal glass compositionInfo
- Publication number
- JPS5727938A JPS5727938A JP10286980A JP10286980A JPS5727938A JP S5727938 A JPS5727938 A JP S5727938A JP 10286980 A JP10286980 A JP 10286980A JP 10286980 A JP10286980 A JP 10286980A JP S5727938 A JPS5727938 A JP S5727938A
- Authority
- JP
- Japan
- Prior art keywords
- composition
- zro
- base glass
- glass
- glass composition
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Glass Compositions (AREA)
Abstract
PURPOSE: To provide an opal glass composition having a low m.p. and causing no blackening after coating using an org. solvent and backing by adding a specified amount of ZrO2 to base glass contg. no Pb and substituting fluorides for part of the oxides of the composition.
CONSTITUTION: 3W10mol ZrO2 is added to 100mol base glass having a composition ≥98mol% of which except water consists of 10W24% SiO2, 24W30% Al2O3, 20W30% B2O3, 10W15% RO and 15W22% R2O (28W35% RO+R2O, RO is CaO, ZnO, BaO or the like, and R2O is Li2O, Na2O or the like), and fluorides are substituted for part of those oxides including ZrO2 by 5W15mol as F2 to 100mol of the base glass. Since the resulting glass composition contains ZrO2 as an opacifier, crystal particles are deposited during coating and baking to accelerate opacification, and the composition has characteristics such as a low softening temp.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10286980A JPS5727938A (en) | 1980-07-26 | 1980-07-26 | Opal glass composition |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP10286980A JPS5727938A (en) | 1980-07-26 | 1980-07-26 | Opal glass composition |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5727938A true JPS5727938A (en) | 1982-02-15 |
Family
ID=14338902
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP10286980A Pending JPS5727938A (en) | 1980-07-26 | 1980-07-26 | Opal glass composition |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5727938A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03232979A (en) * | 1990-02-09 | 1991-10-16 | Takano Kikai Seisakusho:Kk | Steel sheet for punching die and production of punching die by etching treatment |
JPH03256619A (en) * | 1990-03-02 | 1991-11-15 | Sintokogio Ltd | Manufacture of electrode for electric discharge machining |
JP2002114536A (en) * | 2000-10-02 | 2002-04-16 | Sumita Optical Glass Inc | Ultraviolet ray resistant glass |
-
1980
- 1980-07-26 JP JP10286980A patent/JPS5727938A/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH03232979A (en) * | 1990-02-09 | 1991-10-16 | Takano Kikai Seisakusho:Kk | Steel sheet for punching die and production of punching die by etching treatment |
JPH0565591B2 (en) * | 1990-02-09 | 1993-09-20 | Takano Kikai Seisakusho Kk | |
JPH03256619A (en) * | 1990-03-02 | 1991-11-15 | Sintokogio Ltd | Manufacture of electrode for electric discharge machining |
JP2002114536A (en) * | 2000-10-02 | 2002-04-16 | Sumita Optical Glass Inc | Ultraviolet ray resistant glass |
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