Light-collecting system using coumarin derivatives as energy con

Details Light-collecting system using coumarin derivatives as energy con Light-collecting system using coumarin derivatives as energy con

1983-06-06

1985-10-01

Demers, Arthur P.

Compositions

Organic luminescent material containing compositions

Synthetic resin containing

250227, 25030116, 25030117, 25030122, 25030134, 549288, 136247, C09K 1102

Patent

active

045444960

ABSTRACT:
A light-collecting system, characterized in that it contains a coumarin derivative of the formula ##STR1## in which T denotes O or NR.sub.4, in which

REFERENCES:
patent: 3666680 (1972-05-01), Briggs
patent: 4127425 (1978-11-01), Chambers
patent: 4190465 (1980-02-01), Boling
Sanders, "Pigment Compositions", Official Gazette, application Ser. No. 791,145, 4/21/53.
In Re Harnish, 200 USPQ 300.

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