Title:
破砕およびスクラッチ耐性を有するガラス物品
Document Type and Number:
Japanese Patent JP6861716
Kind Code:
B2
Abstract:
Embodiments of glass compositions, glass articles and chemically strengthened glass articles are disclosed. In one or more embodiments, the glass composition comprises Li2O, greater than about 0.9 mol % B2O3, Al2O3 in an amount greater than or equal to 10 mol %, and from about 60 mol % to about 80 mol % SiO2. Embodiments of the chemically strengthened glass article include a first major surface and an opposing second major surface defining a thickness t, a compressive stress layer extending from the first major surface to a depth of compression greater than about 0.12 t, a maximum compressive stress of about 200 MPa or greater, and a Knoop Lateral Cracking Scratch Threshold greater than about 6 N, as measured on either one of the first major surface and the second major surface. Methods for forming such chemically strengthened glass articles are also disclosed.
Inventors:
Gloss, Timothy Michael
Smith, charlene marie
Smith, charlene marie
Application Number:
JP2018541181A
Publication Date:
April 21, 2021
Filing Date:
May 25, 2017
Export Citation:
Assignee:
CORNING INCORPORATED
International Classes:
C03C3/091; C03C3/093; C03C3/097; C03C21/00
Domestic Patent References:
| JP2013536155A | ||||
| JP2011505323A | ||||
| JP2015520097A | ||||
| JP2013544229A | ||||
| JP2015516930A | ||||
| JP2015527970A | ||||
| JP2013527115A |
Foreign References:
| WO2016057787A2 | ||||
| US20140308526 | ||||
| WO2015164241A1 | ||||
| US20150239772 | ||||
| WO2015162845A1 |
Attorney, Agent or Firm:
Yanagita Seiji
Hiroyuki Sakano
Hideaki Takahashi
Hiroyuki Sakano
Hideaki Takahashi