Basf Aktiengesellschaft

Johannes P Dix

Guenter Hansen

Rolf Fikentscher

Manfred Herrmann

Helmut Reichelt

Ralf Brueckmann

Knut Oppenlaender

Gunther Lamm

Ernst Schefczik

Udo Bergmann

Norbert Zimmermann

Udo Mayer

Ulf Baus

Georg Zeidler

Matthias Wiesenfeldt

Hans-Henning Vogel

Chung-Ji Tschang

Ekhard Winkler

Klaus Glaser

Rolf Streicher

Hellmut Kast

Guenther Gotsmann

Wilfried Sager

Erich Kromm

Guenther Elfers

Karl-Heinz Etzbach

Alfred Oftring

Walter Denzinger

Ruediger Sens

Gunnar Schornick

Guenther Seybold

Karin H Beck

Hans-Juergen Degen

Reinhold Krallmann

Axel Kistenmacher

Klaus Barthold

Friedrich-Wilhelm Raulfs

Ortwin Schaffer

Helmut Degen

Werner Streit

Clemens Grund

Wolf-Dieter Kermer

Norbert Grund

Eberhard Beckmann

Michael Kneip

Matthias Kummer

Peter Danisch

Heinrich Kowarsch

Brigitte Wegner

Horst Colberg

Joachim R&ouml;sch

Hermann Birkhofer

Wolfgang Schenk

Klaus Taeger

Hans-Joachim M&uuml;ller

Bernd Hupfeld

Peter Freyberg

Gunter-Rudolf Schroder

Herbert Armbrust

Ingrid Steenken-Richter

Willi Bury

Herbert Leiter

Masahiro Hayashi

Waldemar Dlugosch

Herbert Letter

Rudolf Paulus

Norbert Grief

Processes of treating leather and skins employing polymer compositions

Stable colorant compositions

Dye mixtures containing polyazo dyes and CI Sulphur Black 1 dye

Oligomeric triarylmethane dyes

Condensates of arenesulfonic acids and formaldehyde are prepared by sulfonating arenes obtainable by thermal cracking of a naphthenic residue oil and fractional distillation of the cracked products of the fraction obtained at 100-120.degree. C. under atmospheric pressure, sulfonating this aromatics fraction with oleum at 120.degree.-160.degree. C. using an amount of from 0.7 to 1.2 parts by weight of oleum having an SO.sub.3 content of 24% by weight per part by weight of aromatics fraction, and subsequently condensing the arenesulfonic acids with formaldehyde in a conventional manner, and are used as dispersants, in particular for preparing dye formulations.

Preparation of condensates of arenesulfonic acids and formaldehyde and

An electrostatic toner contains a polymeric binder and as a charge stabilizer a polyamine whose average molecular weight is from 150 to 15,000 and wherein the nitrogen atoms are separated from each other by C.sub.1 -C.sub.13 - alkylene, which may be phenyl-substituted, or by phenylene, which may be C.sub.1 -C.sub.4 -alkyl-substituted, and are substituted by C.sub.1 -C.sub.13 -alkyl, which may be phenyl-, hydroxyl- or carboxyl-substituted, phenyl, C.sub.1 -C.sub.10 -alkanoyl, benzoyl, C.sub.1 - C.sub.6 - alkylcarbamoyl, phenylcarbamoyl or a radical of the formula CO-L-CO, where L is C.sub.2 -C.sub.8 -alkylene, the last case resulting in the crosslinking of two polyamine units.

Electrostatic toners with polyamine charge stabilizers

There is described a process for dyeing leather with the dye of the formula ##STR1##

Dyeing leather with a red azo dye

The present invention relates to the use of trialkanolamine polyethers obtained by condensation of one or more trialkanolamines in the presence of phosphorous acid and/or hypophosphorous acid as demulsifiers for oil-in-water emulsions.

Use of trialkanolamine polyethers as demulsifiers for oil-in-water

Azo dyes useful for dyeing natural or synthetic substrates have the formula ##STR1## where n is from 1 to 4,

Azo dyes and process of dyeing with azo dyes which contain an

Abstract of the Disclosure: A process for tanning leather comprises using for this purpose compounds of the general formula I ##STR1## where m is 0 or 1, and the radicals

Tanning of leather and fur

Tertiary amides useful as low-foam wetting agents in the textile industry have the formula I ##STR1## where R.sup.1 is straight-chain or branched C.sub.5 -C.sub.17 -alkyl or -alkenyl,

Tertiary amides useful as low-foam wetting agents in the textile industry

Quaternized azo dyes whose diazo components are derived from a five-membered nitrogen-containing aromatic aminoheterocycle and whose coupling components are derived from the aniline series are prepared by reacting to corresponding neutral dye-bases with an alkylating agent in .gamma.-butyrolactone as inert diluent.

Preparation of quaternized azo dyes

The present invention relates to methods of demulsifying employing condensates as demulsifiers for oil-in-water emulsions and prepared from

Methods of demulsifying employing condensates as demulsifiers for oil-in

Dyed leather is aftertreated with quaternized condensation products of

Quaternized condensation products for aftertreating dyed leather

Dispersants of increased bioeliminability or biodegradability for use in dye and pigment preparations, as tanning aids, in plastics production and in crop protection formulations contain from 3 to 50% by weight of one or more aromatic or long-chain aliphatic carboxylic acids, salts thereof or anhydrides thereof or a mixture thereof.

Dye dispersants: aryl sulphonic acid-formaldehyde condensate or

Growing community of inventors

Weisenheim, Germany

Johannes P Dix