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US 7,598,190 B2Granted
Ultraviolet and infrared absorptive greenish glass
AssigneeCentral Glass Company, Limited
InventorsYasushi Taguchi, Koji Misaka
Life of this patent
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AssigneeCentral Glass Company, Limited
InventorsYasushi Taguchi, Koji Misaka
Estimating the term…
The present invention relates to an ultraviolet and infrared absorptive greenish glass (the first glass) containing in weight % expression at least coloring components of 0.3-0.5% of total Fe2O3, 0.8-2.0% CeO2, 0.8-2.0% TiO2, and 0.10-0.25% of FeO. This first glass may be an ultraviolet and infrared absorptive greenish glass (the second glass) in which CeO2 amounts to 0.8-1.5% and TiO2 amounts to 0.8-1.5%, and which contains at least 0.1-0.7% SnO as a coloring component. Each glass is characterized in each glass at 5 mm thickness is 9% or less in ultraviolet transmittance (Tuv) according to ISO/DIS9050, 1% or less in 350 nm wavelength transmittance (T350), 70% or greater in 550 nm wavelength transmittance (T550), and 25% or less in 1100 nm wavelength transmittance (T1100).
In a soda-lime-silica series glass, an ultraviolet and infrared absorptive greenish glass, which is characterized in that, in an expression of weight %, it comprises at least coloring components of 0.3-0.5% of total Fe2O3, 0.8-2.0% CeO2, 0.8-2.0% TiO2, and 0.10-0.25% FeO, that CeO2/TiO2 is 0.7-1.3 in weight ratio expression, and that the glass at 5 mm thickness is 9% or less in ultraviolet transmittance (Tuv) according to ISO/DIS9050, 1% or less in 350 nm wavelength transmittance (T350), 70% or greater in 550 nm wavelength transmittance (T550), and 25% or less in 1100 nm wavelength transmittance (T1100).
Dependencies are inferred from the claim text.