Title:
UV-ABSORBING GLASS ARTICLE
Document Type and Number:
WIPO Patent Application WO/2015/088026
Kind Code:
A1
Abstract:
Provided is a UV-absorbing glass article that is suitable as privacy glass for a vehicle and has extremely low UV transmittance (TUV). This UV-absorbing glass article is characterized by having a glass matrix composition that contains, in mass% based on oxides, 66-75% SiO2, 10-20% Na20, 5-15% CaO, 0-6% MgO, 0-5% Al2O3, 0-5% K2O, 0.13-0.9% FeO, at least 0.8% but less than 2.4% total iron represented by Fe2O3, and more than 1% but not more than 5% TiO2, and by containing, in relation to the total quantity of the glass matrix composition component, 100-500 mass ppm of CoO, 0-70 ppm of Se, and 0-800 mass ppm of Cr2O3, wherein the total quantity of CoO, Se, and Cr2O3 is less than 0.1 mass%, and the ultraviolet transmittance (TUV) (ISO 9050:2003) at a plate thickness of 3.5 mm is at most 2%.
Inventors:
AKADA SHUICHI (JP)
Application Number:
PCT/JP2014/083044
Publication Date:
June 18, 2015
Filing Date:
December 12, 2014
Export Citation:
Assignee:
ASAHI GLASS CO LTD (JP)
International Classes:
C03C4/08; C03C3/087; B60J1/00
Domestic Patent References:
| WO1997017303A1 | 1997-05-15 | |||
| WO2013022225A2 | 2013-02-14 |
Foreign References:
| JP2000247679A | 2000-09-12 | |||
| US20040038799A1 | 2004-02-26 | |||
| JPH11217234A | 1999-08-10 | |||
| JPH08245238A | 1996-09-24 | |||
| JP2003508338A | 2003-03-04 |
Other References:
See also references of EP 3081542A4
Attorney, Agent or Firm:
SENMYO, Kenji et al. (JP)
Spring name Kenji (JP)
Spring name Kenji (JP)
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