Patent · US Active

Ultrathin glass with special chamfer shape and high strength

US12187638B2 · kind B2 · utility

0Cited by

2References

23Claims

0Family size

Assignee

SCHOTT GLASS TECHNOLOGIES (SUZHOU) CO. LTD. · CN

Inventors

Ning Da · Suzhou, CN
Feng He · Nanhu, CN

Key dates

Filing date	Nov 13, 2020
Grant date	Jan 7, 2025
Priority date	—
Expiry date	Sep 12, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC03C17/28
WIPO fieldMaterials, metallurgy
WIPO sectorChemistry

Abstract

A chemically toughened glass article is provided that has a thickness (t) of equal to or less than 0.4 mm, a first surface, a second surface, and a compressive stress region that is defined by a compressive stress (CS) of at least 100 MPa and at least one edge connecting the first surface and the second surface. The at least one edge has at least one chamfer with a chamfer width (A) and a chamfer height (B). The chamfer has a ratio of chamfer width/chamfer height (A/B) of between 1.5-20 and the chamfer has a ratio of chamfer width/glass thickness (A/t) of at least 0.5.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.