Title:
CHEMICALLY STRENGTHENED GLASS PLATE AND METHOD FOR MANUFACTURING SAME
Document Type and Number:
WIPO Patent Application WO/2013/047679
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a chemically strengthened glass plate having excellent yield when cutting is performed after chemical strengthening, and having excellent strength. This chemically strengthened glass plate is characterized in that the surface compression stress of the chemically strengthened glass plate is 600 MPa or higher, and that there are two types of stress patterns in the surface compression stress layer: glass-surface-side stress distribution pattern (A), and glass-inner-side stress distribution pattern (B). When each of stress pattern (A) and stress pattern (B) is approximated by a linear function, the slope SA of stress pattern (A) and the slope SB of stress pattern (B) comply with the relation SA > SB.
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Inventors:
MATSUDA YU (JP)
TSUZUKI TATSUYA (JP)
MITAMURA NAOKI (JP)
MURAMOTO TADASHI (JP)
TSUZUKI TATSUYA (JP)
MITAMURA NAOKI (JP)
MURAMOTO TADASHI (JP)
Application Number:
PCT/JP2012/074929
Publication Date:
April 04, 2013
Filing Date:
September 27, 2012
Export Citation:
Assignee:
CENTRAL GLASS CO LTD (JP)
International Classes:
C03C21/00
Domestic Patent References:
| WO2010014163A1 | 2010-02-04 |
Foreign References:
| JPS61205639A | 1986-09-11 | |||
| JPS62100458A | 1987-05-09 | |||
| JPH0848537A | 1996-02-20 | |||
| JP2002160932A | 2002-06-04 | |||
| JPH0848537A | 1996-02-20 | |||
| JP2011213576A | 2011-10-27 | |||
| JP2011530470A | 2011-12-22 | |||
| JP4535692B2 | 2010-09-01 |
Other References:
See also references of EP 2762460A4
Attorney, Agent or Firm:
YASUTOMI & Associates (JP)
Patent business corporation Yasutomi international patent firm (JP)
Patent business corporation Yasutomi international patent firm (JP)
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Claims: