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1. WO2021041031 - SCRATCH RESISTANT GLASS AND METHOD OF MAKING

Publication Number WO/2021/041031
Publication Date 04.03.2021
International Application No. PCT/US2020/045864
International Filing Date 12.08.2020
IPC
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 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 4/18 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
18for ion-sensitive glass
CPC
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 3/091
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
089containing boron
091containing aluminium
C03C 3/093
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
089containing boron
091containing aluminium
093containing zinc or zirconium
C03C 4/18
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
18for ion-sensitive glass
H05K 5/0017
HELECTRICITY
05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
KPRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
5Casings, cabinets or drawers for electric apparatus
0017with display or control units
Applicants
  • CORNING INCORPORATED [US]/[US]
Inventors
  • JIN, Yuhui
  • MCCASLIN, Joshua James
  • SCHNEIDER, Vitor Marino
  • SUN, Wei
  • WILKINSON, Taylor Marie
Agents
  • JOHNSON, Kevin M.
Priority Data
62/894,28830.08.2019US
62/937,95520.11.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SCRATCH RESISTANT GLASS AND METHOD OF MAKING
(FR) VERRE RÉSISTANT AUX RAYURES ET PROCÉDÉ DE FABRICATION
Abstract
(EN)
Glass-based articles comprise stress profiles providing improved scratch resistance. The glass-based articles comprise: a thickness t; a lithium aluminosilicate composition; and a molar ratio of sodium oxide (Na2O) to lithium oxide (Li2O) that is less than or equal to 0.63 at the center of the glass-based article. The articles have a molar ratio of sodium dioxide (Na2O) to lithium dioxide (Li2O) in a post-spike near region that is greater than or equal to 0.9 and/or less than 1.5.
(FR)
L'invention concerne des articles à base de verre comprenant des profils de contrainte qui apportent une résistance aux rayures améliorée. Les articles à base de verre ont : une épaisseur t ; une composition d'aluminosilicate de lithium ; et un rapport molaire d'oxyde de sodium (Na2O) à l'oxyde de lithium (Li2O) inférieur ou égal à 0,63 au centre de l'article à base de verre. Les articles ont un rapport molaire de dioxyde de sodium (Na2O) au dioxyde de lithium (Li2O) dans une région proche post-picot-fond supérieur ou égal à 0,9 et/ou inférieur à 1,5.
Also published as
Latest bibliographic data on file with the International Bureau