JPS5782140A - Lead glass composition - Google Patents

Lead glass composition

Info

Publication number
JPS5782140A
JPS5782140A JP15557580A JP15557580A JPS5782140A JP S5782140 A JPS5782140 A JP S5782140A JP 15557580 A JP15557580 A JP 15557580A JP 15557580 A JP15557580 A JP 15557580A JP S5782140 A JPS5782140 A JP S5782140A
Authority
JP
Japan
Prior art keywords
glass composition
lead glass
0w3wt
pbo
sio
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.)
Granted
Application number
JP15557580A
Other languages
Japanese (ja)
Other versions
JPS6328860B2 (en
Inventor
Kunio Nakaguchi
Makoto Kume
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nippon Sheet Glass Co Ltd
Original Assignee
Nippon Sheet Glass Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Nippon Sheet Glass Co Ltd filed Critical Nippon Sheet Glass Co Ltd
Priority to JP15557580A priority Critical patent/JPS5782140A/en
Publication of JPS5782140A publication Critical patent/JPS5782140A/en
Publication of JPS6328860B2 publication Critical patent/JPS6328860B2/ja
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C03—GLASS; MINERAL OR SLAG WOOL
    • C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
    • C03C3/00—Glass compositions
    • C03C3/04—Glass compositions containing silica
    • C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
    • C03C3/102—Glass compositions containing silica with 40% to 90% silica, by weight containing lead

Abstract

PURPOSE: A lead glass composition, containing oxides, e.g. SiO2, Al2O3, B2O3, etc. in a given proportion, and particularly a large amount of PbO, and having a temperature viscosity curve with a relatively sharp slope suitable for the blow molding by a machine.
CONSTITUTION: A lead glass composition formed from 50W60wt% SiO2, 0W3wt% Al2O3, 0W8wt% B2O3, 0W3wt% ZrO2, 0W8wt% CaO, 0W3wt% Li2O, 0W15wt% Na2O, 0W15wt% K2O and 20W30wt% PbO. In this composition, the following amounts are essential conditions: 55W65wt% (SiO2+Al2O3+B2O3+ZrO2), 5W 10wt% (B2O3+CaO) and 9W16wt% (Li2O+Na2O+K2O). The lead glass composition has a temperaure viscosity curve with a relatively sharp slope in spite of PbO as much as 20W30wt% contained therein. The glass viscosity range favorable for molding glass by either one of the hand blowing and mechanical blowing is almost constant and 104W107.6 poises.
COPYRIGHT: (C)1982,JPO&Japio
JP15557580A 1980-11-05 1980-11-05 Lead glass composition Granted JPS5782140A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15557580A JPS5782140A (en) 1980-11-05 1980-11-05 Lead glass composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15557580A JPS5782140A (en) 1980-11-05 1980-11-05 Lead glass composition

Publications (2)

Publication Number Publication Date
JPS5782140A true JPS5782140A (en) 1982-05-22
JPS6328860B2 JPS6328860B2 (en) 1988-06-10

Family

ID=15609040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15557580A Granted JPS5782140A (en) 1980-11-05 1980-11-05 Lead glass composition

Country Status (1)

Country Link
JP (1) JPS5782140A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20210330673A1 (en) * 2018-08-15 2021-10-28 Aiviva Biopharma, Inc. Multi-kinase inhibitors of vegf and tgf beta and uses thereof

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926051A (en) * 1972-07-04 1974-03-08
JPS5268219A (en) * 1975-12-04 1977-06-06 Asahi Glass Co Ltd Glass with lead for absorbing x rays

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4926051A (en) * 1972-07-04 1974-03-08
JPS5268219A (en) * 1975-12-04 1977-06-06 Asahi Glass Co Ltd Glass with lead for absorbing x rays

Also Published As

Publication number Publication date
JPS6328860B2 (en) 1988-06-10

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