Mixtures of optical brighteners

Details Mixtures of optical brighteners Mixtures of optical brighteners

1978-05-08

1979-10-02

Edmundson, F. C.

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

8 1W, C09K 1106, C11D 726, D06L 312

Patent

active

041698100

ABSTRACT:
A mixture of optical brighteners containing 0.05 to 0.95 part by weight of a compound from the benzoxazolyl- or benzothiazolylstilbene series and 0.95 to 0.05 part by weight of a compound of the bis-benzoxazolyl- or bis-benzothiazolylstilbene series or of the benzoxazolyl- or benzothiazolyl-stilbene oxazolo[5,4-6]pyridinyl or oxazolo[2,3-b]pyridinyl series. These mixtures show an enhanced degree of whiteness as compared to the same amount of the single components.

REFERENCES:
patent: 3595801 (1971-07-01), Rosch et al.
patent: 3711474 (1973-01-01), Lyness et al.
patent: 4105399 (1978-08-01), Luthi
patent: 4129412 (1978-12-01), Gunther et al.

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