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1. (WO2017038621) GLASS PLATE HAVING UV RESISTANCE

Pub. No.:    WO/2017/038621    International Application No.:    PCT/JP2016/074810
Publication Date: Fri Mar 10 00:59:59 CET 2017 International Filing Date: Fri Aug 26 01:59:59 CEST 2016
IPC: C03C 3/085
C03C 3/087
Applicants: ASAHI GLASS COMPANY, LIMITED
旭硝子株式会社
Inventors: OGAMI Satoshi
大神 聡司
KOIKE Akio
小池 章夫
HAYASHI Hideaki
林 英明
ONO Madoka
小野 円佳
Title: GLASS PLATE HAVING UV RESISTANCE
Abstract:
The objective of the present invention is to provide a high-strength glass plate having UV resistance, which maintains the high strength without being decreased in the transmittance in a specific wavelength range even if irradiated with short wavelength UV. The present invention relates to a glass plate for UV irradiation, which contains, in mass%, 60-75% of SiO2, 2-25% of Al2O3, 10-20% of Na2O, 0-7% of K2O, 0.5-10% of MgO, 0-15% of CaO and 0.035-0.12% of Fe2O3, and which has a redox ratio of less than 0.550 and a CaO/MgO (mass ratio) of 1.5 or less.