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US 12,227,447 B2Granted
Coating film-attached glass, production method therefor, and modified glass substrate
AssigneeNipro Corporation
InventorsMasamichi Wada, Atsushi Ishikawa
Life of this patent
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Abstract
A coating film-attached glass comprising a glass substrate, and a coating film provided on at least a part of a surface of the glass substrate, in which a region from the surface of the glass substrate on the coating film side to a predetermined depth is a modified layer, and the modified layer has a microcrystalline structure at least in part.
Claims12
Coating film-attached glass, comprising:
- a glass substrate;
- and a coating film provided on at least a part of a surface of the glass substrate,
- wherein a region from the surface of the glass substrate on the coating film side to a predetermined depth is a modified layer,
- a content of B2O3 in the modified layer is less than that in a region deeper than the modified layer, by mass % in terms of an oxide, and a content of Na2O in the modified layer is less than that in the region deeper than the modified layer, by mass % in terms of an oxide,
- the modified layer contains at least 1 to 8 mass % of B2O3, 1 to 6 mass % of Na2O, and 80 mass % or more of SiO2, in terms of an oxide, and
- the region deeper than the modified layer contains at least 9 to 15 mass % of B2O3, 3 to 9 mass % of Na2O, and 70 mass % or more of SiO2, in terms of an oxide.
3 more elements
A modified glass substrate, comprising:
- a modified layer on at least a part of a surface of a glass substrate,
- wherein the modified layer is a region from the surface of the glass substrate to a predetermined depth and
- a content of B2O3 in the modified layer is less than that in a region deeper than the modified layer, by mass % n terms of an oxide, and a content of Na2O in the modifier is less than at the region deeper than the modified layer, by mass % in terms of an oxide,
- the modified layer contains at least 1 to 8 mass % of B2O3, 1 to 6 mass % of Na2O, and 80 mass % or more of SiO2, in terms of an oxide, and
- the region deeper than the modified layer contains at least 9 to 15 mass % of B2O3, 3 to 9 mass % of Na2O, and 70 mass % or more of SiO2, in terms of an oxide.
2 more elements
Dependencies are inferred from the claim text.