Title:
HEAT RAY-ABSORBING GLASS PLATE AND METHOD FOR PRODUCING SAME
Document Type and Number:
WIPO Patent Application WO/2015/170759
Kind Code:
A1
Abstract:
The present invention provides a heat ray-absorbing glass plate that has low solar transmittance, high visible light transmittance, and low excitation purity, and a method for producing said glass plate. Provided is a heat ray-absorbing glass plate that includes the elements iron, tin, selenium, cobalt, and sulfur, wherein: the mass ratio of divalent iron, in terms of Fe2O3, within the total iron content, in terms of Fe2O3, is 55% or more; the ratio (Tv/Te) of the visible light transmittance (Tv) (A light source, 2-degree visual field) as stipulated by JIS R 3106 (1998) in terms of a glass plate thickness of 4 mm to the solar transmittance (Te) as stipulated by JIS R 3106 (1998) in terms of a glass plate thickness of 4 mm is 1.5 or more; the visible light transmittance (Tv) (A light source, 2-degree visual field) as stipulated by JIS R 3106 (1998) in terms of a glass plate thickness of 4 mm is more than 65%; and the excitation purity (Pe) as stipulated by JIS Z 8701 (1999) in terms of a glass plate thickness of 4 mm is 7% or less.
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Inventors:
SHIMADA YUYA (JP)
ARAI YUSUKE (JP)
ARAI YUSUKE (JP)
Application Number:
PCT/JP2015/063368
Publication Date:
November 12, 2015
Filing Date:
May 08, 2015
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C03C4/08; C03C3/087
Domestic Patent References:
| WO2005042425A1 | 2005-05-12 | |||
| WO2005042425A1 | 2005-05-12 |
Foreign References:
| JP2002338298A | 2002-11-27 | |||
| JPH1072239A | 1998-03-17 | |||
| JPH10152342A | 1998-06-09 | |||
| JPH09278481A | 1997-10-28 | |||
| JP2002338298A | 2002-11-27 | |||
| JPH1072239A | 1998-03-17 | |||
| JPH10152342A | 1998-06-09 | |||
| JPH09278481A | 1997-10-28 |
Other References:
See also references of EP 3141531A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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