Novel stilbene compounds

Details Novel stilbene compounds Novel stilbene compounds

1979-06-01

1981-04-14

Demers, Arthur P.

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

427158, 542462, C07D41310

Patent

active

042618550

ABSTRACT:
Stilbene compounds of the formula ##STR1## in which the rings A, B and C can carry non-chromophoric substituents, R.sub.1 is hydrogen, alkyl which is unsubstituted or substituted by non-chromophoric substituents, or aryl which is unsubstituted or substituted by non-chromophoric substituents, and R.sub.2 is a carboxyl group or a functional derivative thereof, a cyano group, a sulphonic acid ester group, a sulphonamide group or a sulphonyl group, and the use thereof as fluorescent brightening agents for high-molecular organic material.

REFERENCES:
patent: 3453268 (1969-07-01), Dorlars et al.
patent: 3459744 (1969-08-01), Dorlars et al.
patent: 3761470 (1973-09-01), Strobel et al.
patent: 3789012 (1974-01-01), Tuite
patent: 3830848 (1974-08-01), Siegrist
patent: 4032558 (1977-06-01), Fleck et al.
patent: 4039531 (1977-08-01), Gunther et al.
patent: 4061860 (1977-12-01), Kormany et al.

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