公开(公告)号：US20220413220A1

公开(公告)日：2022-12-29

申请号：US17779395

申请日：2020-11-20

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Ming-Jun Li ,  William James Miller

IPC: G02B6/136 ,  G02B6/122 ,  C03C17/02

Abstract: A process for forming glass planar waveguide structure includes producing or obtaining a fusion drawn glass laminate (10) comprising a core glass layer (10) and a first clad glass layer (14) and a second clad glass layer (16) then removing or thinning portions of at least the second glass clad layer (16) leaving remaining or thicker portions of the second glass clad layer (16), the remaining or thicker portions corresponding to a planar waveguide pattern and resulting in a glass planar waveguide structure.

公开(公告)号：US20210221731A1

公开(公告)日：2021-07-22

申请号：US17056593

申请日：2019-05-17

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Matthew John Dejneka ,  Nadja Teresia Lönnroth ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese

IPC: C03C3/093 ,  C03C3/091

Abstract: The embodiments described herein relate to low temperature moldable sheet forming glass compositions and glass articles formed from the same. In various embodiments, the glass composition comprises from about 60 mol. % to about 67 mol. % SiO2, from about 6 mol. % to about 11 mol. % B2O3, from about 4.5 mol. % to about 11 mol. % Li2O, Al2O3, Na2O, and K2O. The glass composition also includes greater than about 2 mol. % RO, where RO are divalent metal oxides, and R2O from about 14 mol. % to about 20 mol. %, where R2O are alkali metal oxides. The glass composition also has a glass transition temperature Tg of less than about 500 C., a softening point of less than about 650 C, and a coefficient of thermal expansion (CTE) of less than about 85×10−7K−1.

公开(公告)号：US12252437B2

公开(公告)日：2025-03-18

申请号：US17924142

申请日：2021-05-05

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Attila Lang de Falussy ,  Jin Su Kim ,  Karl William Koch, III ,  Aize Li ,  James Patrick Trice

IPC: B32B15/04 ,  B32B3/30 ,  B32B7/027 ,  B32B17/06 ,  C03C3/091 ,  C03C11/00 ,  C03C15/00 ,  C03C17/02 ,  C03C23/00

Abstract: A method of forming a glass laminate includes providing a substrate having a core layer and at least one cladding layer; heat treating the substrate at a temperature such that the at least one cladding layer is phase-separated after the heat treating; and etch treating the substrate for at least 10 sec. A phase-separated glass laminate includes a substrate having a core layer and at least one phase-separated cladding layer, such that the glass laminate has a % transmission of at least 96%, and the at least one cladding layer comprises a grain size in a range of 10 nm to 1 μm, or a graded glass index of greater than 5 nm.

公开(公告)号：US12179459B2

公开(公告)日：2024-12-31

申请号：US17292157

申请日：2019-11-01

Applicant: CORNING INCORPORATED

Inventor： Heather Debra Boek ,  Venkatesh Botu ,  Timothy Michael Gross ,  Balamurugan Meenakshi Sundaram ,  Adama Tandia ,  Lisa Anne Tietz Moore ,  Kochuparambil Deenamma Vargheese ,  Mark Owen Weller

IPC: B32B17/06 ,  B32B7/022 ,  C03C3/087 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097 ,  C03C4/18 ,  C03C21/00

Abstract: A laminate glass article is provided that includes: a core glass layer comprising a first coefficient of thermal expansion (CTE); and a plurality of clad glass layers, each comprising a first primary surface, a second primary surface in contact with the core glass layer and a second CTE that is lower than the first CTE of the core glass layer. The difference in the first and second CTE is about 10×10−7/#C to about 70×10−7/#C. Further, each of the core glass layer and the clad glass layers comprises a viscosity from 109.0 to 1014.0 Poise from about 550 #C to about 700 #C.

公开(公告)号：US11939260B2

公开(公告)日：2024-03-26

申请号：US17886690

申请日：2022-08-12

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Xiaoju Guo ,  Ellen Anne King ,  Lisa Ann Lamberson ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese ,  Jingshi Wu

IPC: C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  G02F1/1333

CPC classification number: C03C3/087 ,  C03C3/091 ,  C03C3/095 ,  G02F1/133302 ,  G02F2202/09

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

公开(公告)号：US11834368B2

公开(公告)日：2023-12-05

申请号：US18098262

申请日：2023-01-18

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Matthew John Dejneka ,  Nadja Teresia Lönnroth ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese

IPC: C03C3/091 ,  C03C3/093

CPC classification number: C03C3/093 ,  C03C3/091

Abstract: The embodiments described herein relate to low temperature moldable sheet forming glass compositions and glass articles formed from the same. In various embodiments, the glass composition comprises from about 60 mol. % to about 67 mol. % SiO2, from about 6 mol. % to about 11 mol. % B2O3, from about 4.5 mol. % to about 11 mol. % Li2O, Al2O3, Na2O, and K2O. The glass composition also includes greater than about 2 mol. % RO, where RO are divalent metal oxides, and R2O from about 14 mol. % to about 20 mol. %, where R2O are alkali metal oxides. The glass composition also has a glass transition temperature Tg of less than about 500° C., a softening point of less than about 650° C., and a coefficient of thermal expansion (CTE) of less than about 85×10−7K−1.

公开(公告)号：US20230271875A1

公开(公告)日：2023-08-31

申请号：US17924142

申请日：2021-05-05

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Attila Lang de Falussy ,  Jin Su Kim ,  Karl William Koch, III ,  Aize Li ,  James Patrick Trice

IPC: C03C17/02 ,  C03C23/00 ,  C09K13/08 ,  C03C15/00

CPC classification number: C03C17/02 ,  C03C23/007 ,  C09K13/08 ,  C03C15/00

Abstract: A method of forming a glass laminate includes providing a substrate having a core layer and at least one cladding layer; heat treating the substrate at a temperature such that the at least one cladding layer is phase-separated after the heat treating; and etch treating the substrate for at least 10 sec. A phase-separated glass laminate includes a substrate having a core layer and at least one phase-separated cladding layer, such that the glass laminate has a % transmission of at least 96%, and the at least one cladding layer comprises a grain size in a range of 10 nm to 1 μm, or a graded glass index of greater than 5 nm.

公开(公告)号：US20230150862A1

公开(公告)日：2023-05-18

申请号：US18098262

申请日：2023-01-18

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Matthew John Dejneka ,  Nadja Teresia Lönnroth ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese

IPC: C03C3/093 ,  C03C3/091

CPC classification number: C03C3/093 ,  C03C3/091

Abstract: The embodiments described herein relate to low temperature moldable sheet forming glass compositions and glass articles formed from the same. In various embodiments, the glass composition comprises from about 60 mol. % to about 67 mol. % SiO2, from about 6 mol. % to about 11 mol. % B2O3, from about 4.5 mol. % to about 11 mol. % Li2O, Al2O3, Na2O, and K2O. The glass composition also includes greater than about 2 mol. % RO, where RO are divalent metal oxides, and R2O from about 14 mol. % to about 20 mol. %, where R2O are alkali metal oxides. The glass composition also has a glass transition temperature Tg of less than about 500° C., a softening point of less than about 650° C., and a coefficient of thermal expansion (CTE) of less than about 85×10−7K−1.

公开(公告)号：US20220396518A1

公开(公告)日：2022-12-15

申请号：US17886690

申请日：2022-08-12

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Xiaoju Guo ,  Ellen Anne King ,  Lisa Ann Lamberson ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese ,  Jingshi Wu

IPC: C03C3/095 ,  C03C3/087 ,  C03C3/091

Abstract: Substantially alkali free glasses are disclosed with can be used to produce substrates for flat panel display devices, e.g., active-matrix liquid crystal displays (AMLCDs). The glasses have high annealing temperatures and Young's modulus. Methods for producing substantially alkali free glasses using a downdraw process (e.g., a fusion process) are also disclosed.

公开(公告)号：US20220204388A1

公开(公告)日：2022-06-30

申请号：US17606665

申请日：2020-04-28

Applicant: CORNING INCORPORATED

Inventor： Venkatesh Botu ,  Matthew John Dejneka ,  Nadja Teresia Lönnroth ,  Adama Tandia ,  Kochuparambil Deenamma Vargheese

IPC: C03C4/20 ,  C03C3/118 ,  C03C3/093

Abstract: Chemically durable glass compositions are disclosed. In embodiments, the glass composition includes: 48 mol. % to 61 mol. % SiO2; 0 mol. % to 1 mol. % Al2O3; 7 mol. % to 20 mol. % B2O3; 9 mol. % to 16 mol. % R2O, where R2O is a sum of alkali oxides present in the glass composition; 9 mol. % to 15 mol. % Na2O; and 8 mol. % to 21 mol. % ZnO. The glass composition may be substantially free of Li2O. RO (mol. %)