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1. WO2020112468 - BLACK BETA-SPODUMENE LITHIUM SILICATE GLASS CERAMICS

Publication Number WO/2020/112468
Publication Date 04.06.2020
International Application No. PCT/US2019/062521
International Filing Date 21.11.2019
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 4/02 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
02for coloured glass
C03C 10/04 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
10Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
04Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase
C03C 21/00 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
21Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals into the surface
C03C 10/12 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
10Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
04Silicate or polysilicate crystalline phase, e.g. mullite, diopside, sphene, plagioclase
10Alkali metal aluminosilicate crystalline phase
12Lithium aluminosilicate, e.g. spodumene, eucryptite
CPC
C03B 32/02
CCHEMISTRY; METALLURGY
03GLASS; MINERAL OR SLAG WOOL
BMANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
32Thermal after-treatment of glass products not provided for in groups ; C03B19/00; , C03B25/00 - C03B31/00 ; or C03B37/00; , e.g. crystallisation, eliminating gas inclusions or other impurities; ; Hot-pressing vitrified, non-porous, shaped glass products
02Thermal crystallisation, e.g. for crystallising glass bodies into glass-ceramic articles
C03C 10/0027
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
10Devitrified glass ceramics, i.e. glass ceramics having a crystalline phase dispersed in a glassy phase and constituting at least 50% by weight of the total composition
0018containing SiO2, Al2O3 and monovalent metal oxide as main constituents
0027containing SiO2, Al2O3, Li2O as main constituents
C03C 21/002
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
21Treatment of glass, not in the form of fibres or filaments, by diffusing ions or metals in the surface
001in liquid phase, e.g. molten salts, solutions
002to perform ion-exchange between alkali ions
C03C 2204/00
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
2204Glasses, glazes or enamels with special properties
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 4/02
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
02for coloured glass
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • CLICK, Carol Ann
  • FU, Qiang
  • HUBERT, Mathieu Gerard Jacques
  • SMITH, Charlene Marie
  • WHITTIER, Alana Marie
Agents
  • JOHNSON, Kevin M.
Priority Data
62/773,59030.11.2018US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) BLACK BETA-SPODUMENE LITHIUM SILICATE GLASS CERAMICS
(FR) VITROCÉRAMIQUE NOIRE À BASE DE SILICATE DE LITHIUM BETA-SPODUMÈNE
Abstract
(EN)
A black β-spodumene lithium disilicate glass ceramic is provided. The glass ceramic includes at least one of magnetite, β-quartz, cristobalite, and lithium phosphate as a minor crystal phase. The glass ceramic is characterized by the color coordinates: L*: 15.0 to 35.0, a*: -3.0 to 3.0, and b*: -5.0 to 5.0. The glass ceramic may be ion exchanged. Methods for producing the glass ceramic are also provided.
(FR)
L'invention concerne une vitrocéramique noire à base de disilicate de lithium β-spodumène. La vitrocéramique comprend au moins un des éléments suivants parmi la magnétite, le bêta-quartz, la cristobalite et le phosphate de lithium en tant que phase cristalline mineure. La vitrocéramique est caractérisée par les coordonnées de couleur: L*: 15,0 à 35,0, a*: -3,0 À 3,0, et b*: -5,0 à 5,0. La vitrocéramique peut avoir subi un échange d'ions. L'invention porte également sur des procédés de production de la vitrocéramique.
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