- 专利标题: Ultraviolet/infrared absorbent low transmittance glass
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申请号: US09761585申请日: 2001-01-18
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公开(公告)号: US06436860B1公开(公告)日: 2002-08-20
- 发明人: Hiromitsu Seto , Shigekazu Yoshii
- 申请人: Hiromitsu Seto , Shigekazu Yoshii
- 优先权: JP2000-014757 20000124
- 主分类号: C03C3087
- IPC分类号: C03C3087
摘要:
The ultraviolet/infrared absorbent low transmittance glass has a grayish, almost neutral color shade, low visible light transmittance, low total solar energy transmittance, and low ultraviolet transmittance, and is suitable for a rear window of a vehicle and capable of protecting privacy. The glass consists of base glass including: 65 to 80 wt. % SiO2; 0 to 5 wt. % Al2O3; 0 to 10 wt. % MgO; 5 to 15 wt. % CaO wherein a total amount of MgO and CaO is 5 to 15 wt. %; 10 to 18 wt. % Na2O; 0 to 5 wt. % K2O wherein a total amount of Na2O and K2O is 10 to 20 wt. %; and 0 to 5 wt. % B2O3, and colorants including: 1.0 to 1.6 wt. % total iron oxide (T-Fe2O3) expressed as Fe2O3; more than 0.019 wt. % and equal to or less than 0.05 wt. % CoO; more than 0.0008 wt. % and equal to or less than 0.003 wt. % Se; and more than 0.05 wt. % and equal to or less than 0.1 wt. % NiO. The glass with any one of thicknesses between 1.8 mm and 5 mm has a visible light transmittance (YA) measured by the C.I.E. illuminant “A” in a range from 5 to 25%, a solar energy transmittance (TG) of 5 to 25%, and an ultraviolet transmittance (Tuv) specified by ISO of not greater than 15%.
公开/授权文献
- US20010011057A1 Ultraviolet/infrared absorbent low transmittance glass 公开/授权日:2001-08-02
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