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Karlheinz Wolf

Reinhold Hornle

Konrad Nonn

Joachim Wolff

Hans-Heinz Molls

Fritz Bremer

Klaus Walz

Horst Brandt

Jochen Koll

Vaclav Kaspar

Volker Paulat

Volker Aign

Reinhold M Klipper

Peter M Lange

Harald Oertel

Hans Schulze

Norbert Weimann

Michael Kressner

Georg Pape

Hans D Winkelmann

Norbert Pusch

Johannes Eibl

Hans Werner Petroll

Carlhans Suling

Alfred Pischtschan

Herbert Hugl

Hermann Perrey

Gunther Boehmke

Peter Zimmer

Erich Eimers

Hans-Gunter Otten

Michael Kausch

Joachim Kolbe

Bernhard Vosteen

Ferdinand Kummeler

Rudi Dauscher

Georg Dehmel

Hans Schroer

Bernhard Arnold

Heinz-Ewald Baurecht

Richard Schwaebel

Willy Schiwy

Reinhard Nebeling

Martin Wienkenhover

Peter Rasche

Wolf-Dieter Last

Erich Istel

Gerd Muller

Werner Marschner

Jurgen Spille

Johannes Haas

Helmut P Prochaska

Rudolf Erdmenger

Hans-Werner Petroll

Karl-Heinz Wieser

Erhard Schuffenhauer

Artur Haus

Wolfgang Karnath

Joachim Laser

Friedrich Grimmelijkhuizen

Hans Kunzelmann

Manfred Baecker

Theodor Hild

Wilhelm Bunge

Rudolf Saitner

Gottfried Popp

Reinold Hornle

Jurgen Koerner

Werner Kullick

Hans Unterbirker

Wilhelm Berlenbach

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

Low-dust, storage-stable granules are obtained in a continuous operating process in which the powder to be granulated is granulated in succession in a high-speed and low-speed mixing granulator, with the addition of a granulating liquid, and is then dried in a fluidized bed into which a liquid containing a binder is sprayed. The process is particularly suitable for the preparation of dyestuff granules which can easily be dispersed in the use medium.

Process for the preparation of granules

This invention relates to highly stretchable elasthane fibres (Spandex fibres) based on segmented polyurethane(urea)s with improved elastic properties and high resistance to microbial degradation, characterized in that the polyurethane(urea)s used for the synthesis of the elasthanes are prepared from mixtures of relatively high molecular weight copolyester diols in the molecular weight range of from 2,500 to 4,000 and relatively high molecular polytetrahydrofurandiols in the molecular weight range of from 1,500 to 3,000.

Highly stretchable elasthane fibres with improved properties

A new method of diazotization consists in using as the diazotizing agent in an aqueous, aqueous organic or organic medium the system comprising salt of nitrous acid+acid insoluble in the reaction medium, in particular organic or inorganic cation exchangers having acid groups. The diazonium salt solutions thus prepared are immediately reacted with coupling components to give azo dyestuffs, the insoluble acid and/or its salt being separated off before or after the coupling.

Process for preparing aromatic diazonium salts by diazotation of amines

Liquid water-containing concentrated reactive dye-stuff preparations of monofluorotriazinyl reactive dye-stuffs with a pH value of at least 8, preferably 8.5-10, are stable on storage and display no noticeable hydrolysis, even after prolonged storage.

Liquid, water containing mono-fluoro-triazinyl reactive dyestuff

Stable, concentrated aqueous solutions of, in particular, anionic reactive dyestuffs are obtained in a comparatively simple manner by freeing from salts, preferably by means of membrane separation processes, solutions of these substances just as they are obtained in the course of synthesis, and by replacing, with the aid of ion exchangers, the cations which cause sparing solubility.

Process for the preparation of concentrated solutions of anionic

Concentrated aqueous solutions of dyestuffs having water-solubilizing groups which contain cyanamides of the formula ##STR1## wherein R.sub.1 =NHCN, NHCONH.sub.2 or NHCONHCH.sub.3 where n=0 and

Concentrated reactive dyestuff solutions containing cyanamide compound

A new storage-stable solution of the reactive dyestuff of the formula ##STR1## wherein CuPc=the radical of a Cu phthalocyanine dyestuff,

Storage-stable solution of a copper phthalocyanine reactive dyestuff

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

Process for preparing granules of water-insoluble solids, characterized in that a non-thixotropic press or filter cake of the solid is comminuted by cutting and the product obtained is dried while in rolling motion in a dryer for pourable solids.

Process for preparing granules of water-insoluble solids

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

Dyestuff preparations which are capable of flow and contain (a) at least one dyestuff which is sparingly soluble or insoluble in water, (b) at least one polyester of phthalic acid and a polyalcohol and optionally a monohydric alcohol with 1-18 C atoms and (c) optionally further auxiliaries, and their use for dyeing plastics, in particular polyurethane plastics.

Dyestuff preparations, processes for their production and their use for

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

Process for the preparation of water-soluble dyestuffs with a low salt content, characterized in that the water-soluble dyestuffs are salted out from their aqueous solutions and/or dispersions by adding salts which are volatile at temperatures of about 40.degree. C. to about 250.degree. C. under a pressure of about 10 mm Hg to about 760 mm Hg, the dyestuffs are isolated and the volatile salts are volatilized during the drying process.

Process for the preparation of water-soluble dyestuffs with a low salt

Colorant preparations, a process for their production and their use for

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Leverkusen, Germany

Karlheinz Wolf