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公开(公告)号：US20220220025A1
公开(公告)日：2022-07-14
申请号：US17712626
申请日：2022-04-04
Applicant: CORNING INCORPORATED
Abstract: A glass article is provided that includes: a glass substrate comprising a thickness and a primary surface; and a textured region defined by the primary surface. The textured region comprises a plurality of sub-surface hillocks, each hillock having a top surface and a base, the base located below the primary surface of the substrate. The plurality of hillocks comprises an average lateral feature size from 0.1 μm to 3 μm and an average height from 5 nm to 200 nm. Further, the primary surface of the substrate is substantially planar.
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公开(公告)号：US20210221735A1
公开(公告)日：2021-07-22
申请号：US17258048
申请日：2019-06-25
Applicant: CORNING INCORPORATED
Abstract: A method of making strengthened articles that includes: providing articles each having a first primary surface and a second primary surface, the first and second primary surfaces having one or more asymmetric surface features; providing a first ion-exchange bath; and performing an ion-exchange step by submersing the articles in the first ion-exchange bath to form strengthened articles. The articles are arranged in the first ion-exchange bath with the first primary surface of each facing the first primary surface of another of the articles at a first predetermined distance, and the second primary surface of each is facing the second primary surface of another of the articles at a second predetermined distance. The first predetermined distance and the second predetermined distance are selected such that the plurality of strengthened articles have a first strengthened surface with a convex surface, and a second strengthened surface with a concave surface.
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公开(公告)号：US20250164670A1
公开(公告)日：2025-05-22
申请号：US18947687
申请日：2024-11-14
Applicant: CORNING INCORPORATED
Inventor： Christine Cecala , Ronghua Chen , Melanie Lian Geiger , Yuhui Jin , Qiao Li , Meng Shang
IPC: G02B5/02
Abstract: Anti-sparkle substrates include a first major surface with a textured surface having a surface roughness Ra from 0.03 micrometers to 0.09 micrometers. The anti-sparkle substrate is a glass-based substrate or a ceramic-based substrate. The anti-sparkle substrate can exhibit a haze from 3% to 40% and a sparkle from 1% to 3.8%. Methods include chemically strengthening an existing first major surface, abrading the existing first major surface to form an intermediate first major surface, and etching the intermediate first major surface to form the first major surface of the anti-sparkle substrate.
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公开(公告)号：US11414343B2
公开(公告)日：2022-08-16
申请号：US16573294
申请日：2019-09-17
Applicant: CORNING INCORPORATED
Abstract: A method of reworking lithium containing ion exchanged glass-based articles is provided. The method includes a reverse ion exchange process that returns the glass-based article to approximately the composition of the glass from which the glass-based article was produced, before being subjected to ion exchange.
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公开(公告)号：US10899654B2
公开(公告)日：2021-01-26
申请号：US16015696
申请日：2018-06-22
Applicant: CORNING INCORPORATED
Inventor： Qiao Li , Santona Pal
Abstract: Glass-based articles comprise: a glass-based substrate having opposing first and second surfaces defining a substrate thickness (t); a stress profile comprising: a compressive stress region extending from the first surface to a depth of compression (DOC), the DOC located at 0.04•t or deeper; and a central tension region. An alkali metal oxide is present in the central tension region. A first metal oxide whose metal has the same or smaller atomic radius as the metal of the alkali metal oxide, and a second metal oxide whose metal has a larger atomic radius than the metal of the alkali metal oxide are both present in independent concentrations that vary within at least a portion of the compressive stress region. The glass-based substrates are exposed to a multi-step ion exchange process including a first treatment of doping with ions smaller than the alkali metal oxide of the pre-fabricated glass-based substrate; and a second treatment of strengthening with larger ions to enable superior stress profile attributes. The first treatment may occur at temperatures within 300° C. of the strain point of the glass-based substrate.
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Patent Agency Ranking
公开(公告)号：US11731902B2
公开(公告)日：2023-08-22
申请号：US17712626
申请日：2022-04-04
Applicant: CORNING INCORPORATED
CPC classification number: C03C21/002 , C03C3/085 , C03C4/0092 , C03C15/00 , C03C2204/08 , Y10T428/24355
Abstract: A glass article is provided that includes: a glass substrate comprising a thickness and a primary surface; and a textured region defined by the primary surface. The textured region comprises a plurality of sub-surface hillocks, each hillock having a top surface and a base, the base located below the primary surface of the substrate. The plurality of hillocks comprises an average lateral feature size from 0.1 μm to 3 μm and an average height from 5 nm to 200 nm. Further, the primary surface of the substrate is substantially planar.
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公开(公告)号：US20230076143A1
公开(公告)日：2023-03-09
申请号：US17893329
申请日：2022-08-23
Applicant: CORNING INCORPORATED
Inventor： John Steele Abbott, III , Melanie Lian Geiger , Yuhui Jin , Aize Li , Qiao Li , Kevin Barry Reiman , John Richard Ridge , Wei Sun
Abstract: A glass-based article with a textured surface exhibiting low haze is provided. The glass-based articles are produced by utilizing a combination of abrasion and etching, where hydrofluoric acid is not utilized. The process for producing the glass-based articles also includes an ion exchange process.
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公开(公告)号：US20220380252A1
公开(公告)日：2022-12-01
申请号：US17885976
申请日：2022-08-11
Applicant: CORNING INCORPORATED
Inventor： Qiao Li , Santona Pal
Abstract: Methods of manufacturing a glass-based article include exposing a glass-based substrate to a molten salt bath including a first salt and a second salt. In aspects, the first salt includes a metal ion that has a larger ionic radii than an alkali metal of the glass-based substrate and a first anion, and the second salt dissolved in the molten salt bath includes the same metal ion as the first salt and a second anion different from the first anion. In aspects, the first salt is potassium nitrate, the second salt is potassium carbonate, and a concentration of the potassium carbonate remains at or below its solubility limit in the molten salt bath.
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公开(公告)号：US11447417B2
公开(公告)日：2022-09-20
申请号：US16585190
申请日：2019-09-27
Applicant: CORNING INCORPORATED
Inventor： Qiao Li , Santona Pal
Abstract: Methods of enhanced ion exchange (IOX) include exposing a substrate to a bath mixture that includes a second salt dissolved in a first salt, the second salt includes the same metal ion as the first salt with an anion different from the first salt. The first salts are conventional nitrate salts into which one or more second salts, for example, carbonate, sulfate, chloride, fluorine, borate, or phosphate salts are dissolved. The second salts remain at or below their solubility limits in the first salts. Any poisoning ions remain at or below their solubility limits in the bath mixture. Glass-based articles made therefrom and electronic devices incorporating the glass-based articles are also disclosed.
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公开(公告)号：US20210230056A1
公开(公告)日：2021-07-29
申请号：US15734109
申请日：2019-05-31
Applicant: CORNING INCORPORATED
Inventor： Brian Sterling Chan , Yinghong Chen , Sumalee Likitvanichkul Fagan , Jun Hou , Qiao Li , Santona Pal , Rohit Rai
Abstract: A method of making strengthened articles that includes: providing articles comprising ion-exchangeable alkali metal ions and first and second primary surfaces; providing a bath comprising ion-exchanging alkali metal ions larger in size than the ion-exchangeable ions; and submersing the articles in the bath at a first ion-exchange temperature and duration to form strengthened articles. Each strengthened article comprises a compressive stress region. Further, the exchange rate of the ion-exchanging alkali metal ions is higher into the first primary surface than into the second primary surface. In addition, the submersing step is conducted such that a predetermined gap is maintained between the first primary surface of each of the articles.
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