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1. WO1996006052 - OPAL GLASS

Publication Number WO/1996/006052
Publication Date 29.02.1996
International Application No. PCT/SE1995/000948
International Filing Date 21.08.1995
Chapter 2 Demand Filed 05.12.1995
IPC
C03C 3/097 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
3Glass compositions
04containing silica
076with 40% to 90% silica by weight
097containing phosphorus, niobium or tantalum
C03C 4/00 2006.01
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
4Compositions for glass with special properties
CPC
C03C 3/097
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
3Glass compositions
04containing silica
076with 40% to 90% silica, by weight
097containing phosphorus, niobium or tantalum
C03C 4/005
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
CCHEMICAL 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
4Compositions for glass with special properties
005for opaline glass
Applicants
  • GLASFORSKNINGSINSTITUTET [SE/SE]; P.O. Box 3093 S-350 33 Växjö, SE (AllExceptUS)
  • JONSON, Bo [SE/SE]; SE (UsOnly)
  • JOHANSSON, Lars, Gunnar [SE/SE]; SE (UsOnly)
Inventors
  • JONSON, Bo; SE
  • JOHANSSON, Lars, Gunnar; SE
Agents
  • AWAPATENT AB; P.O. Box 5117 S-200 71 Malmö, SE
Priority Data
9402832-124.08.1994SE
Publication Language English (EN)
Filing Language Swedish (SV)
Designated States
Title
(EN) OPAL GLASS
(FR) VERRE OPALE
Abstract
(EN)
Fluorine-free opal glass has the following composition, based on the oxides of the ingredients: 55-65 % by weight of SiO2, 2-6 % by weight of Al2O3, 10-17 % by weight of Na2O, 2-10 % by weight of CaO, 0.1-6 % by weight of BaO, 0.1-6 % by weight of ZnO, 1-8 % by weight of B2O3, 4-12 % by weight of P2O5, 0.1-3 % by weight of Li2O, 0.1-3 % by weight of Sb2O3, 0-4 % by weight of MgO, the total of the weight quantities of the ingredients amounting to 100 %. In the temperature range of 20-300 °C, the opal glass has a thermal expansion coefficient of 8-11 x 10-6 °C-1, enabling it to be combined with some other translucent glass, such as clear glass, and be melted in electrically-heated furnaces.
(FR)
Un verre opale exempt de fluor contient les composants suivants sous forme d'oxydes et calculés en poids: 55-65 % de SiO2; 2-6 % de Al2O3; 10-17 % de Na2O; 2-10 % de CaO; 0,1-6 % de BaO; 0,1-6 % de ZnO; 1-8 % de B2O3; 4-12 % de P2O5; 0,1-3 % de Li2O; 0,1-3 % de Sb2O3; 0-4 % de MgO, ces quantités totales en poids des composants, représentant 100 %. Dans la fourchette de températures de 20 à 300 °C, le verre opale présente un coefficient d'expansion thermique de 8 à 11 x 10-6 °C-1, ce qui lui permet de se combiner à d'autres verres translucides tels que du verre clair et de fondre dans les fours électriques.
Also published as
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