Bayer Aktiengesellschaft

Volker Aign

Karlheinz Wolf

Reinhold Hornle

Klaus Walz

Norbert Pusch

Hans Schulze

Fritz Bremer

Peter Rasche

Wilhelm Berlenbach

Aqueous dyestuff dispersions containing water-insoluble dyestuffs and water-soluble oxalkylation products which can be obtained by subjecting aromatic compounds containing phenolic OH groups to a condensation reaction with formaldehyde and amines which contain a NH group which is reactive towards formaldehyde, or containing derivatives of such oxalkylation products are suitable for pigmenting natural or synthetic materials.

Aqueous dyestuff or pigment dispersions

Aqueous dyestuff dispersions which contain water-insoluble dyestuffs and water-soluble oxyalkylation products of compounds which are obtainable by the addition of styrene or its derivatives onto phenols or naphthols, or derivatives of such oxyalkylation products, are suitable for pigmenting natural or synthetic materials.

Aqueous dyestuff dispersions

Aqueous pigment dispersions which contain organic or inorganic pigments and water-soluble oxalkylation products of compounds which are obtainable by condensation of aromatic compounds, containing phenolic OH groups, or their ethers, especially lower alkyl ethers, with formaldehyde and amines which contain at least 2 NH groups which are reactive towards formaldehyde, or derivatives of such oxalkylation products are suitable for pigmenting natural or synthetic materials.

Aqueous pigment dispersions

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Monheim, Germany

Volker Aign