Title:
GLASS SHEET FOR CHEMICAL REINFORCEMENT AND MANUFACTURING METHOD OF GLASS SHEET FOR CHEMICAL REINFORCEMENT
Document Type and Number:
Japanese Patent JP2017114718
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a glass sheet easy to make high strength chemical reinforced glass while having meltability equal to general purpose float glasses and further large in crack resistance.SOLUTION: There is provided a glass sheet for chemical reinforcement having a glass composition of, by mol%, SiOof 66 to 71, AlOof 2 to 3, NaO of 13 to 17, MgO of 9 to 14.5 and CaO of 0 to 1.5 with MgO+CaO of 9 to 16 and molar ratio of CaO and total of MgO and CaO, CaO/(MgO+CaO) of 0 to 0.09 and temperature with viscosity of 10dPa s of 1560°C or less.SELECTED DRAWING: None
Inventors:
NAKAMURA HIROTAKA
MITAMURA NAOKI
TSUZUKI TATSUYA
MATSUDA YUTAKA
HIRATA NAOYA
MURAMOTO TADASHI
MITAMURA NAOKI
TSUZUKI TATSUYA
MATSUDA YUTAKA
HIRATA NAOYA
MURAMOTO TADASHI
Application Number:
JP2015250883A
Publication Date:
June 29, 2017
Filing Date:
December 24, 2015
Export Citation:
Assignee:
CENTRAL GLASS CO LTD
International Classes:
C03C3/085; C03C3/087; C03C21/00
Attorney, Agent or Firm:
Yoshiyuki Nishi