Mixtures of optical brighteners and their use for the optical br

Details Mixtures of optical brighteners and their use for the optical br Mixtures of optical brighteners and their use for the optical br

1981-03-02

1982-12-14

Edmundson, F.

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

25230123, 25230124, 25230125, C09K 1106, D01P 138

Patent

active

043637442

ABSTRACT:
Mixtures of optical brighteners consisting of from (a) 0.98 to 0.50 part by weight of a mixture consisting of from 0.05 to 0.95 part by weight of a brightener of the series of the benzoxazolyl-stilbenes and of from 0.95 to 0.05 part by weight of a brightener of the series of the aryltriazoles and (b) of from 0.02 to 0.5 part by weight of a brightener of the series of the bis-benzoxazolyl-stilbenes or of the bis-benzothiazolyl-stilbenes.

REFERENCES:
patent: 3407196 (1968-10-01), Liechti et al.
patent: 3669896 (1972-06-01), Preininger et al.
patent: 3689481 (1972-09-01), Scheuermann et al.
patent: 3789012 (1974-01-01), Tuite
patent: 3793340 (1974-02-01), Sarkar
patent: 3843651 (1974-10-01), Luethi
patent: 4129412 (1978-12-01), Gunther et al.

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