DIRECTION FOR USE OF ULTRAVIOLET RAY ABSORBING PIGMENT
PROBLEM TO BE SOLVED: To provide an ultraviolet ray-fast and ultraviolet ray-absorbing pigment, particularly a direction for use of the ultraviolet ray absorbing pigment. SOLUTION: The ultraviolet ray absorbing pigment is composed, by weight, of 10-90% of Fe2O3, 1-55% of SiO2, 0.5-15% of Al2O3, 0-10...
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide an ultraviolet ray-fast and ultraviolet ray-absorbing pigment, particularly a direction for use of the ultraviolet ray absorbing pigment. SOLUTION: The ultraviolet ray absorbing pigment is composed, by weight, of 10-90% of Fe2O3, 1-55% of SiO2, 0.5-15% of Al2O3, 0-10% of MgO, 0-50% of CaO, 0-30% of SO3and 0-25% of MnO, characterized in absorption rates of 50% or over at wavelength of 350-700 nm and 97% or over at 190-350 nm as to irradiation on a blue stained cloth in claim 1. COPYRIGHT: (C)2005,JPO&NCIPI |
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