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公开(公告)号：US12071369B2
公开(公告)日：2024-08-27
申请号：US18105040
申请日：2023-02-02
Applicant: CORNING INCORPORATED
Inventor： Matthew John Dejneka , Pascale Oram , Rostislav Vatchev Roussev , Vitor Marino Schneider , Charlene Marie Smith , Zhongzhi Tang
CPC classification number: C03C21/002 , C03C3/097 , G06F1/1637
Abstract: A strengthened glass having a stress profile that differs from error-function and parabolic profiles. Stress relaxation and thermal annealing/diffusion effects, which occur at longer ion exchange and/or anneal times increase the depth of compression of the surface layer. A method of achieving these effects is also provided.
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公开(公告)号：US20240150233A1
公开(公告)日：2024-05-09
申请号：US18411608
申请日：2024-01-12
Applicant: CORNING INCORPORATED
Inventor： Timothy Michael Gross , Xiaoju Guo , Jason Thomas Harris , Peter Joseph Lezzi , Alexandra Lai Ching Kao Andrews Mitchell , Pascale Oram , Kevin Barry Reiman , Rostislav Vatchev Roussev , Ljerka Ukrainczyk
IPC: C03C21/00
CPC classification number: C03C21/002 , C03C3/085
Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.
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73.发明授权公开(公告)号：US11795101B2
公开(公告)日：2023-10-24
申请号：US17891761
申请日：2022-08-19
Applicant: CORNING INCORPORATED
Inventor： Ryan Claude Andrews , Jill Marie Hall , Pascale Oram , Rostislav Vatchev Roussev , Vitor Marino Schneider , Ljerka Ukrainczyk
CPC classification number: C03C10/0018 , C03C3/085 , C03C3/097 , C03C21/002
Abstract: A lithium containing glass article is provided. In aspects, the lithium containing glass article includes an intensity coupling profile including a plurality of coupling resonances. A first of the coupling resonances has a half-width half-maximum value that is at least 1.8 times greater than the half-width half-maximum value of a second of the coupling resonances. In aspects, the lithium containing glass article includes a smoothed intensity coupling profile including a plurality of coupling resonances. A second derivative of the smoothed intensity coupling profile at a first of the coupling resonances is at least 1.8 times greater than a second derivative of the smoothed coupling profile at a second of the coupling resonances.
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公开(公告)号：US20230202915A1
公开(公告)日：2023-06-29
申请号：US18117778
申请日：2023-03-06
Applicant: CORNING INCORPORATED
Inventor： Timothy Michael Gross , Xiaoju Guo , Jason Thomas Harris , Peter Joseph Lezzi , Alexandra Lai Ching Kao Andrews Mitchell , Pascale Oram , Kevin Barry Reiman , Rostislav Vatchev Roussev , Ljerka Ukrainczyk
IPC: C03C21/00
CPC classification number: C03C21/002 , C03C3/085
Abstract: Glass-based articles comprise stress profiles providing improved fracture resistance. The glass-based articles herein provide high fracture resistance after multiple drops.
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公开(公告)号：US20230174422A1
公开(公告)日：2023-06-08
申请号：US18105040
申请日：2023-02-02
Applicant: CORNING INCORPORATED
Inventor： Matthew John Dejneka , Pascale Oram , Rostislav Vatchev Roussev , Vitor Marino Schneider , Charlene Marie Smith , Zhongzhi Tang
CPC classification number: C03C21/002 , C03C3/097 , G06F1/1637
Abstract: A strengthened glass having a stress profile that differs from error-function and parabolic profiles. Stress relaxation and thermal annealing/diffusion effects, which occur at longer ion exchange and/or anneal times increase the depth of compression of the surface layer. A method of achieving these effects is also provided.
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Patent Agency Ranking
公开(公告)号：US20230147808A1
公开(公告)日：2023-05-11
申请号：US17897076
申请日：2022-08-26
Applicant: CORNING INCORPORATED
Inventor： Rostislav Vatchev Roussev , Charlene Marie Smith
CPC classification number: C03C21/002 , C03C3/097 , C03C3/093 , H05K5/0017 , H05K5/0217
Abstract: Methods of forming a chemically strengthened glass-based article include ion exchanging a plurality of alkali ions into a glass-based substrate to form a glass-based article with a non-zero alkali metal oxide concentration that varies along at least a substantial portion of a thickness of the glass-based substrate. The ion-exchanging includes immersing the glass-based substrate in a molten salt bath for from 50% to 130% of an ion exchange time that produces a peak central tension (CT) with the same molten salt bath composition and temperature. The molten salt bath includes at least 90% by weight of a potassium salt and 10% or less by weight of a sodium salt.
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公开(公告)号：US11634359B2
公开(公告)日：2023-04-25
申请号：US16165312
申请日：2018-10-19
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Benedict Osobomen Egboiyi , Jonathan David Pesansky , Kevin Barry Reiman , Rostislav Vatchev Roussev , Brian Paul Strines
IPC: C03C3/04 , C03C4/18 , C03C21/00 , C03C3/097 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/085 , G06F1/16 , H04B1/3827
Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of at least about 45 μm within the article are provided. In one embodiment, the compressive stress profile includes a single linear segment extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile includes two linear portions: the first portion extending from the surface to a relatively shallow depth and having a steep slope; and a second portion extending from the shallow depth to the depth of compression. The strengthened glass has a 60% survival rate when dropped from a height of 80 cm in an inverted ball drop test and a peak load at failure of at least 10 kgf as determined by abraded ring-on-ring testing. Methods of achieving such stress profiles are also described.
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公开(公告)号：US20220411324A1
公开(公告)日：2022-12-29
申请号：US17894693
申请日：2022-08-24
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Xiaoju Guo , Pascale Oram , Rostislav Vatchev Roussev , Ljerka Ukrainczyk , Taylor Marie Wilkinson
Abstract: Methods of manufacturing a glass-based article includes exposing a glass-based substrate having a lithium aluminosilicate composition to an ion exchange treatment to form the glass-based article. The ion exchange treatment including a molten salt bath having a concentration of a sodium salt in a range from 8 mol % to 100 mol %. The glass-based article includes sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article The glass-based article has compressive stress layer extending from the surface to a spike depth of layer from 4 micrometers to 8 micrometers. The glass-based article includes a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8.
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79.发明申请公开(公告)号：US20220373532A1
公开(公告)日：2022-11-24
申请号：US17873495
申请日：2022-07-26
Applicant: CORNING INCORPORATED
Inventor： Rostislav Vatchev Roussev , Vitor Marino Schneider
Abstract: Methods of characterizing ion-exchanged chemically strengthened Li-containing glasses include: a) measuring a mode spectrum of the glass sample; b) using the mode spectrum, estimating a first contribution to the center tension associated with a spike region and estimating a second contribution to the center tension due to a deep region only, wherein the deep region is assumed to follow a power-law stress profile; and c) determining a total center tension by adding of the first and second contributions to the center tension. The methods can be used for quality control during manufacturing of glass samples by comparing the total center tension to a center tension specification that provides optimum strength and durability.
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公开(公告)号：US11472733B2
公开(公告)日：2022-10-18
申请号：US16826473
申请日：2020-03-23
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Xiaoju Guo , Pascale Oram , Rostislav Vatchev Roussev , Ljerka Ukrainczyk , Taylor Marie Wilkinson
Abstract: Glass-based articles comprise stress profiles providing improved scratch resistance. A glass-based article comprises a lithium aluminosilicate composition and a molar ratio of potassium oxide (K2O) to sodium oxide (Na2O) averaged over a distance from the surface to a depth of 0.4 micrometers that is greater than or equal to 0 and less than or equal to 1.8. The article comprises sodium having a non-zero varying concentration extending from a surface of the glass-based article to a depth of the glass-based article and a spike depth of layer that is greater than or equal to 4 micrometers and less than or equal to 8 micrometers. The article may comprise an average compressive stress of greater than or equal to 150 MPa over a depth from 15 micrometers to 40 micrometers.
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