LIGHT-STORING FLUORESCENT SUBSTANCE

PROBLEM TO BE SOLVED: To provide a light-storing fluorescent substance excellent in water resistance and having a luminescent color of a green color with excellent visibility. SOLUTION: This light-storing fluorescent substance is activated by bivalent europium and has chemical composition formula ex...

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Main Authors IWANISHI MASUMI, KAWABE NORITAKA
Format Patent
LanguageEnglish
Published 15.03.2007
Subjects
ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
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Abstract PROBLEM TO BE SOLVED: To provide a light-storing fluorescent substance excellent in water resistance and having a luminescent color of a green color with excellent visibility. SOLUTION: This light-storing fluorescent substance is activated by bivalent europium and has chemical composition formula expressed by general formula: (Sr1-x-q-r-Cax-Euq-Mr)O-n(Al1-y+By)2O3-p(GeO2) (M is a coactivator and comprises at least one kind of element selected from a group consisting of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Mn, Sn, and Bi), wherein x, y, n, p, q, and r each satisfy inequalities as follows: 0.001≤x≤0.1; 1.0<n≤3.0; 0.00001≤p≤0.030; 0.001≤y≤0.5; 0.001≤q≤0.2; and 0.001≤r≤0.2. COPYRIGHT: (C)2007,JPO&INPIT
AbstractList PROBLEM TO BE SOLVED: To provide a light-storing fluorescent substance excellent in water resistance and having a luminescent color of a green color with excellent visibility. SOLUTION: This light-storing fluorescent substance is activated by bivalent europium and has chemical composition formula expressed by general formula: (Sr1-x-q-r-Cax-Euq-Mr)O-n(Al1-y+By)2O3-p(GeO2) (M is a coactivator and comprises at least one kind of element selected from a group consisting of La, Ce, Pr, Nd, Sm, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Mn, Sn, and Bi), wherein x, y, n, p, q, and r each satisfy inequalities as follows: 0.001≤x≤0.1; 1.0<n≤3.0; 0.00001≤p≤0.030; 0.001≤y≤0.5; 0.001≤q≤0.2; and 0.001≤r≤0.2. COPYRIGHT: (C)2007,JPO&INPIT
Author KAWABE NORITAKA
IWANISHI MASUMI
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Snippet PROBLEM TO BE SOLVED: To provide a light-storing fluorescent substance excellent in water resistance and having a luminescent color of a green color with...
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SubjectTerms ADHESIVES
CHEMISTRY
DYES
MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
PAINTS
POLISHES
Title LIGHT-STORING FLUORESCENT SUBSTANCE
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