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公开(公告)号：US20200308046A1
公开(公告)日：2020-10-01
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 dioxide (K2O) to sodium dioxide (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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公开(公告)号：US10556826B2
公开(公告)日：2020-02-11
申请号：US15777422
申请日：2016-11-18
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Xiaoju Guo , Todd LeRoy Heck , Hongmei Hu , Yuhui Jin , Pascale Oram , Ljerka Ukrainczyk
Abstract: Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.
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公开(公告)号：US10473829B2
公开(公告)日：2019-11-12
申请号：US15407964
申请日：2017-01-17
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Yuhui Jin , Timothy James Kiczenski , Michelle Diane Pierson-Stull
IPC: G02B5/02 , G02B1/18 , H05K5/00 , H05K5/03 , B24C1/00 , C03C3/097 , C03C15/00 , C03C17/30 , C03C23/00
Abstract: Embodiments of an electronic device comprising an enclosure and electrical components disposed at least partially inside the enclosure, wherein the enclosure comprises a substrate having a tactile surface are disclosed. The tactile surface may include a textured surface, a coated surface or a coated textured surface that exhibits a low fingerprint visibility, when a fingerprint is applied to the tactile surface. In one or more embodiments, the substrate exhibits an average transmittance of about 80% or greater over the visible spectrum, a coefficient of friction less than about 0.3, a surface roughness Ra of about 500 nm or greater, and either one or both a transmission haze greater than about 60%, and a reflection haze at either 2 degrees from specular or 5 degrees from specular greater than 60%.
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公开(公告)号：US10351472B2
公开(公告)日：2019-07-16
申请号：US15672567
申请日：2017-08-09
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Yuhui Jin , Kristy Lynn Smith
Abstract: Methods for reducing a defective area in a strengthened substrate to produce a non-defective substrate are provided. The methods include contacting a strengthened defective substrate with a heated salt bath containing at least one monovalent salt, and removing the strengthened substrate from the bath. The strengthened substrate, before being contacted with the salt bath, is a defective substrate having at least one defective area and one or more non-defective area. Upon removal from the salt bath, at least one defective area has been reduced or substantially removed to produce a non-defective substrate.
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公开(公告)号：US20190071350A1
公开(公告)日：2019-03-07
申请号：US16182004
申请日：2018-11-06
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Benedict Osobomen Egboiyi , Jonathan David Pesansky , Kevin Barry Reiman , Rostislav Vatchev Roussev , Brian Paul Strines
Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of compression DOC of at least about 125 μm within the glass article. The compressive stress profile includes a single linear segment or portion extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile may include an additional portion extending from the surface to a relatively shallow depth and the linear portion extending from the shallow depth to the depth of compression.
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Patent Agency Ranking
公开(公告)号：US10150698B2
公开(公告)日：2018-12-11
申请号：US14926425
申请日：2015-10-29
Applicant: Corning Incorporated
Inventor： Jaymin Amin , Benedict Osobomen Egboiyi , Jonathan David Pesansky , Kevin Barry Reiman , Rostislav Vatchev Roussev , Brian Paul Strines
Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of compression DOC of at least about 125 μm within the glass article. The compressive stress profile includes a single linear segment or portion extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile may include an additional portion extending from the surface to a relatively shallow depth and the linear portion extending from the shallow depth to the depth of compression.
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公开(公告)号：US20180327305A1
公开(公告)日：2018-11-15
申请号：US16043442
申请日：2018-07-24
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Xiaoju Guo , Todd LeROY Heck , Hongmei Hu , Yuhui Jin , Pascale Oram , Ljerka Ukrainczyk
CPC classification number: C03C21/002 , B01J39/02 , B01J39/14 , C03C3/097
Abstract: Methods for regenerating poisoned salt bath comprising providing a salt bath comprising at least one of KNO3 and NaNO3, providing an ion-exchangeable substrate comprising lithium cations, contacting at least a portion of the ion-exchangeable substrate with the salt bath, whereby lithium cations in the salt bath diffuse from the ion-exchangeable substrate and are dissolved in the salt bath, and selectively precipitating dissolved lithium cations from the salt bath using phosphate salt. The methods further include preventing or reducing the formation of surface defects in the ion-exchangeable substrate by preventing or reducing the formation of crystals on the surface of the ion-exchangeable substrate upon removal from the salt bath.
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公开(公告)号：US20170152173A1
公开(公告)日：2017-06-01
申请号：US15427704
申请日：2017-02-08
Applicant: Corning Incorporated
Inventor： Jaymin Amin , George Halsey Beall , Charlene Marie Smith
CPC classification number: C03C10/0045 , C03C3/093 , C03C4/18 , C03C10/0027 , C03C10/0036 , C03C10/0054 , C03C21/002 , C03C2204/00 , Y10T428/24355 , Y10T428/24975 , Y10T428/265 , Y10T428/315
Abstract: The invention relates to glass articles suitable for use as electronic device housing/cover glass which comprise a glass ceramic material. Particularly, a cover glass comprising an ion-exchanged glass ceramic exhibiting the following attributes (1) optical transparency, as defined by greater than 90% transmission at 400-750 nm; (2) a fracture toughness of greater than 0.6 MPa·m1/2; (3) a 4-point bend strength of greater than 350 MPa; (4) a Vickers hardness of at least 450 kgf/mm2 and a Vickers median/radial crack initiation threshold of at least 5 kgf; (5) a Young's Modulus ranging between about 50 to 100 GPa; (6) a thermal conductivity of less than 2.0 W/m° C., and (7) and at least one of the following attributes: (i) a compressive surface layer having a depth of layer (DOL) greater and a compressive stress greater than 400 MPa, or, (ii) a central tension of more than 20 MPa.
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公开(公告)号：US20170036953A1
公开(公告)日：2017-02-09
申请号：US15332559
申请日：2016-10-24
Applicant: CORNING INCORPORATED
Inventor： Jaymin Amin , Benedict Osobomen Egboiyi , Jonathan David Pesansky , Kevin Barry Reiman , Rostislav Vatchev Roussev , Brian Paul Strines
CPC classification number: C03C21/002 , C03C3/04 , C03C3/085 , C03C3/087 , C03C3/091 , C03C3/093 , C03C3/095 , C03C3/097 , C03C4/18 , C03C21/00 , C03C2204/00 , G06F1/1637 , G06F2200/1634 , H04B1/3827 , Y10T428/315
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 an equibiaxial flexural strength 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：US20160122239A1
公开(公告)日：2016-05-05
申请号：US14926425
申请日：2015-10-29
Applicant: Corning Incorporated
Inventor： Jaymin Amin , Benedict Osobomen Egboiyi , Jonathan David Pesansky , Kevin Barry Reiman , Rostislav Vatchev Roussev , Brian Paul Strines
CPC classification number: C03C21/002 , C03C3/097
Abstract: Chemically strengthened glass articles having at least one deep compressive layer extending from a surface of the article to a depth of compression DOC of at least about 125 μm within the glass article. The compressive stress profile includes a single linear segment or portion extending from the surface to the depth of compression DOC. Alternatively, the compressive stress profile may include an additional portion extending from the surface to a relatively shallow depth and the linear portion extending from the shallow depth to the depth of compression.
Abstract translation: 化学强化的玻璃制品，其具有从制品的表面延伸到玻璃制品内至少约125μm的压缩DOC深度的至少一个深的压缩层。 压缩应力分布包括从表面延伸到压缩DOC深度的单个线性段或部分。 或者，压缩应力分布可以包括从表面延伸到相对浅的深度的附加部分，以及从浅深度延伸到压缩深度的直线部分。
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