Title:
The float glass for chemical strengthening
Document Type and Number:
Japanese Patent JP6112122
Kind Code:
B2
Abstract:
The present invention relates to a float glass for chemical strengthening, containing a bottom surface coming into contact with a molten metal at the time of forming and a top surface opposing the bottom surface, in which a difference Δ(N—Na2O2) determined by subtracting a square of a normalized Na2O surface concentration of the bottom surface which is a value obtained by dividing an Na2O concentration in the bottom surface by an Na2O concentration at a depth position of 100 μm therefrom, from a square of a normalized Na2O surface concentration of the top surface which is a value obtained by dividing an Na2O concentration in the top surface by an Na2O concentration at a depth position of 100 μm therefrom, is 0.040 or less.
Inventors:
Yuichi Suzuki
Tetsuya Nakashima
Atsushi Sasai
Tetsuya Nakashima
Atsushi Sasai
Application Number:
JP2014554596A
Publication Date:
April 12, 2017
Filing Date:
December 27, 2013
Export Citation:
Assignee:
Asahi Glass Co., Ltd.
International Classes:
C03B18/02; C03C3/078; C03C3/085; C03C3/087; C03C21/00
Domestic Patent References:
| JP2012236737A | ||||
| JP9501647A | ||||
| JP11278875A | ||||
| JP63159238A | ||||
| JP61236635A |
Foreign References:
| WO2011068225A1 |
Attorney, Agent or Firm:
Patent business corporation glory patent office