Coating compositions, process and luminescent coated articles

Details Coating compositions, process and luminescent coated articles Coating compositions, process and luminescent coated articles

2011-05-10

2011-05-10

Koslow, C. Melissa (Department: 1734)

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

C252S301360, C428S690000, C106S031640, C106S031320, C427S064000, C427S157000

Reexamination Certificate

active

07938984

ABSTRACT:
The invention is directed to a composition having a carrier matrix, and a particulate luminescent composition dispersed therein, the particulate luminescent composition comprising a rare-earth-doped solid-state solution of alkaline earth fluorides represented by the chemical formulain-line-formulae description="In-line Formulae" end="lead"?REx(CaaSrbBac)1−xF2+x−2yOyin-line-formulae description="In-line Formulae" end="tail"?wherein RE represents a three-valent rare-earth element, 0.005≦x≦0.20, and 0≦y≦0.2, a+b+c=1, with the proviso at least two of a, b, and c are not equal to zero; the particulate luminescent composition exhibiting a luminescence spectrum having a plurality of intensity peaks at characteristic wavelengths. It is further directed to a process by contacting a surface with the composition and articles made therefrom.

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