Dimethine compounds of the coumarin series, a process for their

Details Dimethine compounds of the coumarin series, a process for their Dimethine compounds of the coumarin series, a process for their

1981-08-27

1983-05-24

Demers, Arthur P.

Compositions

Organic luminescent material containing compositions

Scintillating or lasing compositions

25230135, 25230134, 331 945L, 542430, 542431, 542434, 542436, 542437, 542441, 549287, 549288, C07F 1300

Patent

active

043849733

ABSTRACT:
Dimethine compounds of the coumarin series of the general formula ##STR1## with the substituent meanings given in the description are used for dyeing synthetic fibre materials, in particular those of polyester, polyamide, polyurethanes, polypropylene and polyacrylonitrile. Clear, luminous-red dyeings of high brilliancy are obtained. The dyestuffs can also be used as laser dyestuffs and as energy converters in light-collecting systems.

REFERENCES:
patent: 4018796 (1977-04-01), Harnisch
patent: 4105665 (1978-08-01), Harnisch
patent: 4258182 (1981-03-01), Beecken
patent: 4268668 (1981-05-01), Harnisch et al.
patent: 4312985 (1982-01-01), Hunt
patent: 4316013 (1982-02-01), Hunt
patent: 4319024 (1982-03-01), Peeters et al.

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