Benzodifuran compounds

Compositions – Organic luminescent material containing compositions – Optical brightening compositions

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8 1W, 427158, 25230131, C09K 1100, D06L 312

Patent

active

039717313

ABSTRACT:
Benzodifuran compounds of the formula ##SPC1##
Wherein

REFERENCES:
patent: 2852503 (1958-09-01), Long
patent: 2915534 (1959-12-01), Long et al.
patent: 3010967 (1961-11-01), Siegrist et al.
patent: 3103518 (1963-09-01), Duennenberger
patent: 3140946 (1964-07-01), Cassiers et al.
patent: 3637734 (1972-01-01), Harnisch et al.
patent: 3658833 (1972-04-01), Kabas et al.
patent: 3796707 (1974-03-01), Siegrist et al.
Chem. Abstr., vol. 51, 7350(c), (1957).

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