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公开(公告)号：US11104608B2
公开(公告)日：2021-08-31
申请号：US16682143
申请日：2019-11-13
Applicant: CORNING INCORPORATED
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07 t to a depth of about 0.26 t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18 t to about 0.25 t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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2.发明公开公开(公告)号：US20240036236A1
公开(公告)日：2024-02-01
申请号：US18265709
申请日：2021-12-10
Applicant: CORNING INCORPORATED
Inventor： Albert Joseph Fahey , Shandon Dee Hart , Karl William Koch, III , Carlo Anthony Kosik Williams , Lin Lin , Alexandre Michel Mayolet , Xu Ouyang , Charles Andrew Paulson , James Joseph Price
Abstract: A cover glass article is described herein that includes: a substrate comprising an outer primary surface with an outer optical film structure disposed thereon and an inner primary surface with an inner optical film structure disposed thereon. The outer film structure comprises a first plurality of alternating high index and low index layers with an outermost low index layer. The inner film structure comprises a second plurality of alternating high index and low index layers with a low or high index layer disposed on the inner primary surface, and an innermost low or high index layer. Each high index layer of the first and the second plurality comprises a nitride or an oxynitride, and an oxide or a nitride, respectively. Further, the cover glass article exhibits an average photopic transmittance of greater than 95% and a maximum hardness of greater than 10 GPa.
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公开(公告)号：US11629095B2
公开(公告)日：2023-04-18
申请号：US16886297
申请日：2020-05-28
Applicant: CORNING INCORPORATED
Inventor： Albert Joseph Fahey , Yuhui Jin
Abstract: A method of etching a substrate comprises: contacting a substrate having a thickness with an etchant disposed in a vessel for a period of time until the thickness has reduced by at least 2 μm and at an average rate of 1 μm per minute to 6.7 μm per minute, the etchant having a temperature of 170° C. to 300° C. and comprising a molten mixture of two or more alkali hydroxides; and ceasing contacting the substrate with the etchant. The etchant in some instances comprises a molten mixture of NaOH and KOH. For example, the etchant in some instances includes a molten mixture of 24 wt. % to 72 wt. % NaOH, and 76 wt. % to 28 wt. % KOH. In some instances, the method alters the weight percentage of Na+, K+ and Li+ in the composition of the surface of the substrate by less than 1%.
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公开(公告)号：US20230242442A1
公开(公告)日：2023-08-03
申请号：US18131031
申请日：2023-04-05
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
CPC classification number: C03C21/002 , C03C10/0018 , C03C10/0027
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07 t to a depth of about 0.26 t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18 t to about 0.25 t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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公开(公告)号：US20200377406A1
公开(公告)日：2020-12-03
申请号：US16886297
申请日：2020-05-28
Applicant: CORNING INCORPORATED
Inventor： Albert Joseph Fahey , Yuhui Jin
Abstract: A method of etching a substrate comprises: contacting a substrate having a thickness with an etchant disposed in a vessel for a period of time until the thickness has reduced by at least 2 μm and at an average rate of 1 μm per minute to 6.7 μm per minute, the etchant having a temperature of 170° C. to 300° C. and comprising a molten mixture of two or more alkali hydroxides; and ceasing contacting the substrate with the etchant. The etchant in some instances comprises a molten mixture of NaOH and KOH. For example, the etchant in some instances includes a molten mixture of 24 wt. % to 72 wt. % NaOH, and 76 wt. % to 28 wt. % KOH. In some instances, the method alters the weight percentage of Na+, K+ and Li+ in the composition of the surface of the substrate by less than 1%.
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Patent Agency Ranking
公开(公告)号：US20200148591A1
公开(公告)日：2020-05-14
申请号：US16682143
申请日：2019-11-13
Applicant: CORNING INCORPORATED
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07 t to a depth of about 0.26 t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18 t to about 0.25 t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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公开(公告)号：US11634360B2
公开(公告)日：2023-04-25
申请号：US17461126
申请日：2021-08-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07t to a depth of about 0.26t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18t to about 0.25t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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公开(公告)号：US20240376344A1
公开(公告)日：2024-11-14
申请号：US18696536
申请日：2022-10-07
Applicant: CORNING INCORPORATED
Inventor： Theresa Chang , Albert Joseph Fahey , Ying Wei , Shu Yuan
IPC: C09D183/04 , C03C17/30 , C08G77/04 , C09D5/00 , C09D5/16
Abstract: A method of manufacturing an article includes depositing a solution on a glass, glass-ceramic, or ceramic substrate, the solution having a polyhedral oligomeric silsesquioxane with the formula (RSiO3/2)n, where R is a hydrogen or an organic moiety; curing the solution to form an anti-reflective coating; and plasma treating the anti-reflective coating to form defects in the anti-reflective coating. An article includes a glass, glass-ceramic, or ceramic substrate having a primary surface; a plasma-treated anti-reflective coating disposed over the primary surface that has at least one layer, the at least one layer having a polyhedral oligomeric silsesquioxane with the formula (RSiO3/2)n, where R is a hydrogen or an organic moiety; and an easy-to-clean (ETC) coating disposed over the plasma-treated anti-reflective coating, the ETC coating having a fluorinated material and a physical thickness of about 1 nm to about 20 nm.
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公开(公告)号：US20220348496A1
公开(公告)日：2022-11-03
申请号：US17642432
申请日：2020-09-10
Applicant: CORNING INCORPORATED
Inventor： David Eugene Baker , Albert Joseph Fahey , Qiang Fu , Yuhui Jin , Wei Sun , Ljerka Ukrainczyk , Shelby Kerin Wilson
IPC: C03C21/00
Abstract: Methods for regenerating a salt bath composition include heating the salt bath composition to an ion exchange temperature to form a molten salt bath. The methods may further include contacting at least a portion of an ion-exchangeable article that includes lithium oxide (Li2O) with the molten salt bath. Lithium cations may diffuse from the ion-exchangeable article and into the molten salt bath. Additionally, the methods may include adding a first phosphate salt to the molten salt bath. A lithium phosphate salt that includes at least a portion of the lithium cations may be formed and precipitate from the molten salt bath. Furthermore, the methods may include adding a multivalent salt that includes a multivalent metal cation to the molten salt bath. A second phosphate salt that includes the multivalent metal cation may be formed and precipitate from the molten salt bath.
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公开(公告)号：US20210387905A1
公开(公告)日：2021-12-16
申请号：US17461126
申请日：2021-08-30
Applicant: Corning Incorporated
Inventor： Ryan Claude Andrews , Albert Joseph Fahey , Lisa Marie Noni , Rostislav Vatchev Roussev , Charlene Marie Smith , Ljerka Ukrainczyk , Shelby Kerin Wilson
Abstract: Ion-exchanged glass ceramic articles described herein have a stress that decreases with increasing distance according to a substantially linear function from a depth of about 0.07t to a depth of about 0.26t from the outer surface of the ion-exchanged glass ceramic article from a compressive stress to a tensile stress. The stress transitions from the compressive stress to the tensile stress at a depth of from about 0.18t to about 0.25t from the outer surface of the ion-exchanged glass ceramic article. An absolute value of a maximum compressive stress at the outer surface of the ion-exchanged glass article is from 1.8 to 2.2 times an absolute value of a maximum central tension (CT) of the ion-exchanged glass article, and the glass ceramic article has a fracture toughness of 1 MPa√m or more as measured according to the double cantilever beam method.
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