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US 6,783,698 B1Granted
Mixtures of fluorescent whitening agents
AssigneeCiba Specialty Chemicals Corporation
InventorsDieter Reinehr, Hanspeter Sauter, Hans Kramer, Werner Schreiber
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Abstract
The present invention relates to a mixture of fluorescent whitening agents comprising 20 to 70% by weight of a compound of formula (1), 30 to 80% of a compound of formula (2) and 0.1 to 10% of a compound of formula (3), compositions containing the mixture and the user of the compositions for whitening synthetic fibers, in particular, polyester.
Claims8
A mixture of fluorescent whitening agents comprising 30 to 60% by weight of a compound of formula
- 30 to 60% of a compound of formula
- 0.1 to 3% of a compound of formula
Dependencies are inferred from the claim text.