Precursor compounds of alkaline earth metal or rare earth...

Details Precursor compounds of alkaline earth metal or rare earth... Precursor compounds of alkaline earth metal or rare earth...

2004-05-19

2009-12-01

Koslow, C. Melissa (Department: 1793)

Chemistry of inorganic compounds

Oxygen or compound thereof

Metal containing

C423S263000, C252S30140R, C501S152000, C501S127000, C501S153000

Reexamination Certificate

active

07625546

ABSTRACT:
The invention relates to alkaline-earth or rare-earth metal aluminate precursor compounds, to their method of preparation and to their use in particular as phosphor precursors. These alkaline-earth or rare-earth metal aluminate precursor compounds are essentially crystallized in the form of a transition alumina and in the form of substantially spherical and chemically homogeneous particles including pores whose mean diameter is of at least 10 nm.

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