公开(公告)号：US11365149B2

公开(公告)日：2022-06-21

申请号：US16440305

申请日：2019-06-13

Applicant: AGC INC.

Inventor： Suguru Murayama ,  Yuriko Banno

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

Abstract: A chemically strengthened glass having a thickness t of 2 mm or less, having a compressive stress value (CS90) at a portion of 90 μm deep from a glass surface being 25 MPa or more, and satisfying a number of fragments generated within a size of 25 mm×25 mm being 20 or less in a fracture test according to an indenter indentation test under a condition of holding a load ranging from 5 kgf to 10 kgf for 15 seconds with a pyramidal diamond indenter having an indenter angle of a facing angle of 60°.