Invention Application
- Patent Title: CHEMICALLY STRENGTHENED GLASS AND METHOD FOR MANUFACTURING CHEMICALLY STRENGTHENED GLASS
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Application No.: US17747664Application Date: 2022-05-18
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Publication No.: US20220274869A1Publication Date: 2022-09-01
- Inventor: Suguru MURAYAMA , Yuriko BANNO
- Applicant: AGC Inc.
- Applicant Address: JP Tokyo
- Assignee: AGC Inc.
- Current Assignee: AGC Inc.
- Current Assignee Address: JP Tokyo
- Priority: JP2016-010002 20160121,JP2016-204746 20161018,JP2016-204747 20161018
- Main IPC: C03C21/00
- IPC: C03C21/00 ; C03C3/087 ; C03C3/097 ; C03C3/085 ; C03C3/091 ; C03C3/083 ; C03C3/093

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°.
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