Process for two-dimensionally concentrating light, and novel per

Details Process for two-dimensionally concentrating light, and novel per Process for two-dimensionally concentrating light, and novel per

1980-12-08

1983-04-12

Edmundson, F.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

25230125, C07D47106, C09B 314

Patent

active

043799345

ABSTRACT:
A process for concentrating light by means of fluorescent compounds of the formula ##STR1## where the R.sup.1 's independently of one another are ortho-substituted aromatic or heterocyclic radicals which do not contain groups which confer solubility in water, and novel perylene-3,4,9,10-tetracarboxylic acid diimides of the formula I, where R.sup.1 is ##STR2## A.sup.1 and A.sup.2 being hydrogen, or one of A.sup.1 or A.sup.2 being isopropyl and the other being hydrogen.
The compounds I are very lightfast and convert incident light into fluorescent light with high efficiency.

REFERENCES:
patent: 4110123 (1978-08-01), Goetzberger

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