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US 4,285,692 AGranted
Granular preparation of vat dyestuffs and/or disperse dyestuffs
AssigneeBayer Aktiengesellschaft
InventorsWilly Schiwy, Jurgen Schulze, Ferdinand Hummes, Peter Schulze, Reinhold Hornle, Hans-Heinz Molls, Harry Orttmann
Life of this patent
Estimating the term…
Abstract
Process for the production of granular mixtures of vat dyestuffs and/or disperse dyestuffs, characterized in that liquid or pasty, finished formulations of two or more vat dyestuffs and/or disperse dyestuffs are spray-dried together to form granules.
Claims7
Process for the production of granular mixtures of vat dyestuffs and/or disperse dyestuffs, characterised in that liquid or pasty, finished formulations of two or more vat dyestuffs and/or disperse dyestuffs are spray-dried together to form granules.
Dependencies are inferred from the claim text.