公开(公告)号：US11312656B2

公开(公告)日：2022-04-26

申请号：US16585200

申请日：2019-09-27

申请人： AGC Inc.

发明人： Kenji Imakita ,  Suguru Murayama ,  Izuru Kashima ,  Kazuki Kanehara

IPC分类号： C03C21/00 ,  C03C3/083 ,  C03C3/085 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097

摘要： The present invention relates to a chemically strengthened glass satisfying A1 [MPa] of 600 or more, A2 [MPa] of 50 or more, B1 [μm] of 6 or less, B2 [μm] of 10% or more of t [μm], C [MPa] of −30 or less, and A1/B1 [MPa/μm] of 100 or more when the chemically strengthened glass has a thickness t [μm] and a profile of a stress value [MPa] at a depth x [μm] from a glass surface is approximated by an error least-squares method in a region of 0 A2 and B1

公开(公告)号：US11731901B2

公开(公告)日：2023-08-22

申请号：US16747593

申请日：2020-01-21

申请人： AGC Inc.

发明人： Qing Li ,  Kenji Imakita ,  Akio Koike ,  Eriko Maeda

IPC分类号： C03C21/00 ,  C03B32/02 ,  C03C10/00 ,  C03C4/00 ,  C03C4/18 ,  B32B17/10

CPC分类号： C03C21/002 ,  B32B17/10 ,  C03B32/02 ,  C03C4/0028 ,  C03C4/18 ,  C03C10/0027 ,  C03C10/0054 ,  C03C2204/00

摘要： The purpose of the present invention is to provide a chemically strengthened glass having excellent transparency and strength and being scratch resistant. The present invention pertains to a chemically strengthened glass that: has a compressive stress layer on the surface thereof; has a visible light transmittance of at least 70% when the thickness thereof is converted to 0.8 mm; has a surface compressive stress of at least 600 MPa; has a compressive stress depth of at least 80 μm; and contains a β-spodumene.

公开(公告)号：US11718557B2

公开(公告)日：2023-08-08

申请号：US17692335

申请日：2022-03-11

申请人： AGC Inc.

发明人： Kenji Imakita ,  Suguru Murayama ,  Izuru Kashima ,  Kazuki Kanehara

IPC分类号： C03C21/00 ,  C03C3/083 ,  C03C3/085 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097

CPC分类号： C03C21/002 ,  C03C3/083 ,  C03C3/085 ,  C03C3/091 ,  C03C3/093 ,  C03C3/097

摘要： The present invention relates to a chemically strengthened glass satisfying A1 [MPa] of 600 or more, A2 [MPa] of 50 or more, B1 [μm] of 6 or less, B2 [μm] of 10% or more of t [μm], C [MPa] of −30 or less, and A1/B1 [MPa/μm] of 100 or more when the chemically strengthened glass has a thickness t [μm] and a profile of a stress value [MPa] at a depth x [μm] from a glass surface is approximated by an error least-squares method in a region of 0 A2 and B1

公开(公告)号：US11639308B2

公开(公告)日：2023-05-02

申请号：US16710167

申请日：2019-12-11

申请人： AGC Inc.

发明人： Kenji Imakita ,  Suguru Murayama

IPC分类号： C03C21/00 ,  C03C3/087 ,  C03C3/085 ,  C03C3/091 ,  C03C4/20

摘要： A plate-like chemically strengthened glass having a compression stress layer on the surface of the glass, wherein the compressive stress value (CS0) at the glass surface of is 500 MPa or more, the plate thickness (t) is 400 μm or more, the compressive stress depth of layer (DOL) is (t×0.15) μm or more, the compressive stress values (CS1) and (CS2) when the depth from the glass surface is ¼ and ½, respectively, are 50 MPa or more, m1 expressed by {m1=(CS1−CS2/(DOL/4−DOL/2)} is −1.5 MPa/μm or more, m2 expressed by {m2=(CS2/(DOL/2−DOL)} is 0 MPa/μm or less, and m2 is less than m1.

公开(公告)号：US11028015B2

公开(公告)日：2021-06-08

申请号：US16729839

申请日：2019-12-30

申请人： AGC Inc.

发明人： Akio Koike ,  Makoto Katsuta ,  Suguru Murayama ,  Kenji Imakita

IPC分类号： C03C3/083 ,  B32B5/16 ,  C03C21/00 ,  C03C3/062 ,  C03C3/085 ,  C03C3/087 ,  F16C33/32

摘要： A glass ball has a density of 2.3 to 3.2 g/cm3, a Young's modulus of 60 to 150 GPa, and an average coefficient of thermal expansion at 50 to 350° C. being 40×10−7 to 120×10−7/° C. The glass ball is formed of a glass material including, as represented by mole percentage based on oxides, 30 to 75 mol % of SiO2, 2 to 30 mol % of Al2O3, and 5 to 25 mol % of R2O, where R is at least one kind selected from Li, Na and K. The glass ball includes a compressive stress layer in a surface thereof.