公开(公告)号：US20180327304A1

公开(公告)日：2018-11-15

申请号：US16033787

申请日：2018-07-12

Applicant: AGC Inc.

Inventor： Suguru MURAYAMA ,  Seiki Ohara ,  Qing Li ,  Shusaku Akiba

IPC: C03C3/097 ,  C03C21/00 ,  C03C3/093 ,  C03C3/091 ,  C03C4/18 ,  C03C3/085 ,  C03C3/083 ,  C03C3/087

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2O, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.

公开(公告)号：US11731901B2

公开(公告)日：2023-08-22

申请号：US16747593

申请日：2020-01-21

Applicant: AGC Inc.

Inventor： Qing Li ,  Kenji Imakita ,  Akio Koike ,  Eriko Maeda

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

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

Abstract: 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：US10472272B2

公开(公告)日：2019-11-12

申请号：US16033787

申请日：2018-07-12

Applicant: AGC Inc.

Inventor： Suguru Murayama ,  Seiki Ohara ,  Qing Li ,  Shusaku Akiba

IPC: C03C3/085 ,  C03C3/091 ,  C03C3/097 ,  C03C21/00 ,  C03C3/083 ,  C03C3/087 ,  C03C3/093 ,  C03C4/18

Abstract: A glass for chemical strengthening contains, in mole percentage on an oxide basis, 58 to 80% of SiO2, 13 to 18% of Al2O3, 0 to 5% of B2O3, 0.5 to 4% of P2O5, 4 to 10% of Li2O, 5 to 14% of Na2O, 0 to 2% of K2O, 0 to 11% of MgO, 0 to 5% of CaO, 0 to 20% of SrO, 0 to 15% of BaO, 0 to 10% of ZnO, 0 to 1% of TiO2, and 0 to 2% of ZrO2. A value of X is 30000 or more. The value of X is calculated based on the formula, X=SiO2×329+Al2O3×786+B2O3×627+P2O5×(−941)+Li2O×927+Na2O×47.5+K2O×(−371)+MgO×1230+CaO×1154+SrO×733+ZrO2×51.8, by using the contents in mole percentage on an oxide basis of components.