Organic compounds -- part of the class 532-570 series – Organic compounds – Rare earth containing
568326, 568732, 422 56, 436800, 25230116, 136247, C07F 1500, H01L 31041
This invention concerns novel fluorescent compositions having the potential for absorption of visible and UV radiation and for re-emitting the radiation at longer wavelengths. The compositions comprise rare earth chelates containing a phenalenone nucleus.
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Parkinson Bruce A.
Streitwieser, Jr. Andrew
Wiley Douglas W.
E. I. Du Pont de Nemours and Company
Stoll Robert L.
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