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US 4,396,733 AGranted
Stabilized azulmic acids, processes for their preparation and their use
AssigneeBayer Aktiengesellschaft
InventorsKuno Wagner, Kurt Findeisen
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Abstract
The present invention relates to new azulmic acids stabilized by condensation with carbonyl compounds, several processes for their preparation and their use for various purposes.
Claims16
A process for the preparation of stabilized azulmic acids comprising condensing an azulmic acid with a carbonyl compound in an aqueous medium.
Stabilized azulmic acids comprising products formed by the condensation of carbonyl compounds with azulmic acids.
Dependencies are inferred from the claim text.