Organic compounds -- part of the class 532-570 series – Organic compounds – Sulfonic acids or salts thereof
Patent
1991-05-13
1992-09-08
Raymond, Richard L.
Organic compounds -- part of the class 532-570 series
Organic compounds
Sulfonic acids or salts thereof
544107, 544410, 546184, 548354, 548579, 358413, 562 83, 562 84, C07C30932, C07C60446
Patent
active
051459914
ABSTRACT:
Distyrylbiphenyl compounds of formula ##STR1## wherein R.sub.1, R.sub.3, R.sub.6 and R.sub.7 are halogen, hydrogen, C.sub.1 -C.sub.4 alkyl or cyano, and M.sup..sym. is a salt-forming cation, are used as fluorescent whitening agents in solid and, preferably, liquid, detergent compositions. They are distinguished by good white effects and insignificant spotting behavior.
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Eckhardt Claude
Weber Kurt
Ciba-Geigy Corporation
Mathias Marla J.
McC. Roberts Edward
Raymond Richard L.
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