Other

Ciba-geigy Ag

Michael Diamantoglou

Hans H Bosshard

Urs Karlen

Helmut Magerlein

Emery G Cornelissens

Hans Peter Koelliker

Rainer Zielke

A composition which consists essentially of a mixture of oligomeric and polymeric oxidation products of cellulose, hemicellulose and lignin containing carboxy, ether and hydroxy groups as obtained by the direct oxidation of a woody plant material, preferably in an aqueous suspension thereof, using alkali hypohalite in a one stage oxidation procedure or nitrogen dioxide, alkali periodate or lead tetraacetate followed by alkali chlorite or alkali hypochlorite in a two stage oxidation procedure. The resulting oxidation products as obtained by one of these specific processes are especially valuable as additives to a surface active detergent or cleaning agent.

Oxidation products of cellulose, hemicellulose and lignin

Anthraquinone dyestuffs of the formula ##SPC1## In which R.sub.1 and R.sub.2 independently of one another each denote hydrogen or a lower alkyl group, X denotes a direct bond, --CH.sub.2 --, --O-- or --S--, and Y denotes the nitrile group, a thiocarboxylic acid ester group, a carbacyl group, or an optionally substituted aliphatic, cycloaliphatic, carbocyclic-aromatic or heterocyclic radical. The dyestuffs yield fast blue shades on polyesterfibers.

Anthraquinone dyestuffs which are sparingly soluble in water, and their

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Erlenbach, Germany

Michael Diamantoglou