Soda-lime glass of blue hue

Details Soda-lime glass of blue hue Soda-lime glass of blue hue

2006-04-25

2006-04-25

Group, Karl (Department: 1755)

Compositions: ceramic

Ceramic compositions

Glass compositions, compositions containing glass other than...

C501S071000, C501S904000, C501S905000

Reexamination Certificate

active

07033967

ABSTRACT:
The invention relates to a coloured soda-lime glass of blue hue, containing more than2wt. % of MgO, more than1.1wt. % of Fe2O3, less than0.53wt. % of FeO and less than0.13wt. % of MnO2, and presenting under Illuminant A and for a glass thickness of4mm, a transmission factor (TLA4) higher than15%, a selectivity (SE4) higher than1.2and a dominant wavelength (λD) and a purity of excitation (P) such that they are located in the CIE chromaticity co-ordinate diagram inside a triangle whereof the apices are defined by the point representing the illuminant source C and the points whereof the co-ordinates (λD, P) are (490,19) and (476,49) respectively. Said glass is particularly suitable for motor vehicle side windows, rear windows and sun roof.

REFERENCES:
patent: 5352640 (1994-10-01), Combes et al.
patent: 5393593 (1995-02-01), Gulotta et al.
patent: 5411922 (1995-05-01), Jones
patent: 10-114540 (1998-05-01), None
Seto et al., Derwent abstract and machine translation of JP 10-114540.

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