Title:
ALKALI BOROSILICATE GLASS, CURVED GLASS, LAMINATED GLASS, ARCHITECTURAL WINDOW GLASS AND VEHICLE WINDOW GLASS
Document Type and Number:
WIPO Patent Application WO/2023/248843
Kind Code:
A1
Abstract:
The present invention relates to an alkali borosilicate glass which has a total iron content, converted to Fe2O3, of 0.03% or more in terms of mol% on an oxide basis, and a ratio of 3-coordinated boron to the total amount of 3-coordinated boron and 4-coordinated boron of 61% or less, and is substantially free from Se and CoO; and, when the thickness is converted to 2.0 mm, which shows a solar transmittance Te specified in ISO-9050:2003 of 90% or less, a dominant wavelength Dw measured using a standard C light source specified in JIS Z 8701:1999 of 520-574 nm inclusive, and an excitation purity Pe measured using the standard C light source specified in JIS Z 8701:1999 of 4.0% or less.
Inventors:
KAJIHARA TAKATO (JP)
SAWAMURA SHIGEKI (JP)
SAWAMURA SHIGEKI (JP)
Application Number:
PCT/JP2023/021633
Publication Date:
December 28, 2023
Filing Date:
June 09, 2023
Export Citation:
Assignee:
AGC INC (JP)
International Classes:
C03C3/091; B60J1/00; C03C21/00; C03C27/12
Domestic Patent References:
| WO2019017405A1 | 2019-01-24 |
Foreign References:
| JPH09328332A | 1997-12-22 | |||
| JP2018527216A | 2018-09-20 | |||
| JPH0692678A | 1994-04-05 | |||
| US6235666B1 | 2001-05-22 |
Attorney, Agent or Firm:
EIKOH, P.C. (JP)
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