Bayer Aktiengesellschaft

Volker Paulat

Karlheinz Wolf

Reinhold Hornle

Hans-Heinz Molls

Konrad Nonn

Jochen Koll

Martin Wienkenhover

Karl-Heinz Wieser

Hanns P Muller

Jan Mazanek

Ulrich Von Gizycki

Joachim Wolff

Peter Wild

Walter Muller

Hans Schulze

Wolfgang Frank

Werner Theuer

Johannes Haas

Shaun Murphree

Wolfgang Karnath

Process for the preparation of low-salt liquid dyestuff preparations, characterized in that they are obtained by:

Process for the preparation of low-salt, liquid dyestuff preparations

New polyisocyanate-polyaddition compounds, a process for their preparation and their use as wetting or dispersing agents for the incorporation of solids, in particular pigments, in lacquer or synthetic resin formulation.

New polyisocyanate-polyaddition compounds, a process for their

Pigment preparations which contain an organic pigment and/or carbon black and a surfactant from the sulphosuccinic acid ester and/or alkylbenzenesulphonate series and which have been dried, if appropriate after wet comminution, by spray- or freeze-drying from an aqueous medium, and the use of these preparations for pigmenting high molecular weight organic material, in particular thermoplastics.

Pigment preparations

The invention relates to insecticidal and acaricidal agents which contain water-insoluble active compounds and water-soluble oxyalkylation products of compounds prepared by adding styrenes onto phenols or naphthols, and which form a colloidal solution when diluted with water, and to their use.

Insecticidal and acaricidal agents and their use

The lyotropic, liquid-crystalline, aqueous phase of a reactive dyestuff of the formula ##STR1## wherein M.sym. represents H.sym. or an alkali metal cation (preferably Na.sym., K.sym. or Li.sym.) and

Liquid-crystalline phase of an azo reactive dyestuff, and its use for

Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## which is present in water in a concentration of 23-35% at room temperature, are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.

Liquid crystal phase of an azo reactive dyestuff and its use for dyeing

Liquid finished formulations which are stable to storage and hydrolysis and are based on the lyotropic liquid crystal aqueous phase of the dyestuff of the formula ##STR1## in water in a concentration of 12-35% at room temperature are outstandingly suitable for the preparation of dyebaths and printing pastes for dyeing cotton, wool, regenerated cellulose, paper and leather.

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Monheim, Germany

Volker Paulat