Title:
GLASS FOR CHEMICAL STRENGTHENING, AND CHEMICALLY STRENGTHENED GLASS
Document Type and Number:
WIPO Patent Application WO/2015/137285
Kind Code:
A1
Abstract:
Provided are a glass for chemical strengthening and a chemically strengthened glass, provided with characteristics suitable for application in a housing or decorative component of an electronic device, i.e., excellent aesthetics, high productivity, and high strength. This glass for chemical strengthening is characterized by containing 0.1-7% Fe2O3, 1-25% Al2O3, and 0.1-10% B2O3 by mole percentage in terms of oxides, the minimum absorbance in a wavelength range of 380 nm to 780 nm being at least 0.3, the indentation load of a Vickers indenter giving a crack incidence of 50% when an indentation is formed using the Vickers indenter (angle of tip: 136°) in a mirror-finished surface of a sheet of the glass having a thickness of 0.8 mm being at least 150 gf, and the glass for chemical strengthening not containing magnetite crystals.
Inventors:
SAKAGAMI TAKAHIRO (JP)
YAMAMOTO HIROYUKI (JP)
YAMAMOTO HIROYUKI (JP)
Application Number:
PCT/JP2015/056858
Publication Date:
September 17, 2015
Filing Date:
March 09, 2015
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C03C3/091; C03C3/093; C03C21/00
Domestic Patent References:
| WO2012124757A1 | 2012-09-20 |
Foreign References:
| EP0600302A1 | 1994-06-08 |
Other References:
MORTEN M. SMEDSKJAER: "Sodium diffusion in boroaluminosilicate glasses", JOURNAL OF NON- CRYSTALLINE SOLIDS, vol. 357, no. 22, 2011, pages 3744 - 3750, XP028294750, ISSN: 0022-3093
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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