Title:
GLASS PLATE WHICH CAN BE REDUCED IN WARPING DURING CHEMICAL TOUGHENING
Document Type and Number:
WIPO Patent Application WO/2013/146438
Kind Code:
A1
Abstract:
The purpose of the present invention is to provide a glass plate which is capable of effectively suppressing warping after chemical toughening and which is also capable of skipping or simplifying the polishing treatment and the like before chemical toughening. The present invention relates to a glass plate wherein the surface Na2O amount in one surface is lower than the surface Na2O amount in the other surface by 0.2-1.2% by mass.
Inventors:
OKAHATA NAOKI (JP)
NAKAGAWA KOJI (JP)
YAMANAKA KAZUHIKO (JP)
WATANABE KUNIO (JP)
TANII SHIRO (JP)
IKAWA NOBUAKI (JP)
KOBAYASHI DAISUKE (JP)
MIYASHITA JUNICHI (JP)
KATO RYOSUKE (JP)
NIHEI TOSHIFUMI (JP)
SERA YOICHI (JP)
HAYASHI YASUO (JP)
FUKAWA MAKOTO (JP)
NAKAGAWA KOJI (JP)
YAMANAKA KAZUHIKO (JP)
WATANABE KUNIO (JP)
TANII SHIRO (JP)
IKAWA NOBUAKI (JP)
KOBAYASHI DAISUKE (JP)
MIYASHITA JUNICHI (JP)
KATO RYOSUKE (JP)
NIHEI TOSHIFUMI (JP)
SERA YOICHI (JP)
HAYASHI YASUO (JP)
FUKAWA MAKOTO (JP)
Application Number:
PCT/JP2013/057724
Publication Date:
October 03, 2013
Filing Date:
March 18, 2013
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C03C23/00; C03C21/00
Domestic Patent References:
| WO2008004481A1 | 2008-01-10 | |||
| WO2008156177A1 | 2008-12-24 |
Foreign References:
| JP2004035297A | 2004-02-05 | |||
| JP2007101134A | 2007-04-19 | |||
| JP2005067974A | 2005-03-17 | |||
| JP2002234754A | 2002-08-23 |
Attorney, Agent or Firm:
HAMADA Yuriko et al. (JP)
Yuriko Hamada (JP)
Yuriko Hamada (JP)
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