Stable dispersions of fluorescent whitening agents of the bis-tr

Details Stable dispersions of fluorescent whitening agents of the bis-tr Stable dispersions of fluorescent whitening agents of the bis-tr

1978-11-29

1980-08-05

Demers, Arthur P.

Compositions

Organic luminescent material containing compositions

Optical brightening compositions

25230121, 542435, 542461, C07D40310, C07D40314

Patent

active

042161118

ABSTRACT:
Stable aqueous dispersions of fluorescent whitening agents of the bis-triazinylaminostilbene group in substantially free acid form are prepared by deflocculating an aqueous mixture containing said agent in flocculated form.

REFERENCES:
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patent: 3360479 (1967-12-01), Hausermann
patent: 3511833 (1970-05-01), Tscharner
patent: 3654151 (1972-04-01), King
patent: 3669896 (1972-06-01), Preininger et al.
patent: 3740341 (1973-06-01), Brocklehurst
patent: 3759900 (1973-09-01), Horstman
patent: 3767587 (1973-10-01), Claussen et al.
patent: 3853583 (1974-12-01), Langstroth
patent: 3962115 (1976-06-01), Clark et al.
patent: 4047887 (1977-09-01), Kackstadter
Sisley, Encyclopedia of Surface Active Agents, 1964, Chem. Pub. Co., N. Y., N Y, p. 42-49.
Weissberger, Techniques of Organic Chemistry, vol. III., 1950, Interscience, p. 158.

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