Basf Aktiengesellschaft

Werner Streit

Rolf Fikentscher

Hans-Juergen Degen

Klaus Glaser

Werner Auhorn

Guenter Frey

Wolf Guender

Guenther Gotsmann

Emil Scharf

Gerhard Welzel

Klaus Wulz

Heinz-Dieter Angstmann

Karl Gans

Norbert Leppert

Dieter Bassing

Linda Witt

Alfred Oftring

Friedrich Linhart

Johannes P Dix

Klaus Lorenz

Matthias Kummer

Karl-Heinz Beyer

Wolfgang Schenk

Wolfram Bergold

Hans Mueller

Friedrich Klippel

Emil Schaefer

Karlheinz Gebert

Rolf Blanckenhorn

Textile materials are pretreated in aqueous media by alkaline scouring and/or bleaching using an assistant comprising a compound of the general formula I ##STR1## where R is C.sub.6 -C.sub.10 -alkyl, X is H, Na, K or NR.sup.1 R.sup.2 R.sup.3 R.sup.4, and R.sup.1, R.sup.2, R.sup.3 and R.sup.4 are each H, C.sub.1 -C.sub.4 -alkyl or --CH.sub.2 --CH.sub.2 --OH.

Pretreatment of textile materials: alkaline scour or bleach with

Cotton and cotton-containing fabrics are desized in strongly alkaline aqueous solution with an alkali metal hypochlorite by a process in which from 0.5 to 8.0 g/l of a tertiary hydroxyalkylamine which is soluble in aqueous alkaline solution, of an oxyethylated and/or oxypropylated ethylenediamine, of an oxyethylated polyethyleneimine, of malonic acid, of cyanuric acid, of a cyanuric acid derivative, of a urea derivative, of cyanoguanidine, of oxazolidone, of pyrrolidone, of N-methylpyrrolidone, of N-methylimidazole or of a mixture of these is added to the aqueous bath, as an activator for the hypochlorite. Activators for hypochlorite are used in the desizing of cotton and cotton-containing fabrics in strongly alkaline aqueous solutions.

Desizing cotton and cotton-containing fabrics

Cotton-containing fabrics are bleached with hypochlorite in an aqueous alkaline liquor at elevated temperatures by a process in which bleaching is carried out at from 80.degree. to 110.degree. C. in the course of from 30 seconds to 25 minutes in the presence of a water-soluble polyhydroxy compound, as a readily oxidizable substance, in an amount of from 0.5 to 20 g/l.

Bleaching cotton-containing fabrics with hypochlorite at elevated

Water-containing peroxydisulfate suspensions containing potassium peroxydisulfate, a water-soluble polymer or copolymer of acrylic acid and/or maleic acid, with or without an anionic surfactant, where appropriate mixed with a non-ionic surfactant, and water, in which the aqueous phase contains from 12 to 65% by weight of not less than one other dissolved compound which keeps the system at a pH of not less than 5 and is a source of potassium ions.

Aqueous suspensions of peroxydisulfates and their use as oxidative

Aqueous solutions comprising 25 to 60 percent by weight of mixtures of

Concentrated aqueous solutions of mixtures of organic complexing agents

An agent, based on reducing agents and complexing agents, for dissolving insoluble iron(III) compounds in aqueous textile treatment baths which are at a pH of 10 or more, which agent has the following composition:

Agent for dissolving insoluble iron(III) compounds in highly alkaline

Water-soluble benzylated polyamidoamines which contain from 0.1 to 0.9 mole of benzyl groups per equivalent of nitrogen, and onto which from 20 to 400 parts by weight of ethyleneimine or propyleneimine have been grafted per 100 parts by weight of polyamidoamine, processes for the preparation of the materials, and the use of the materials as cationic assistants in processes for coloring paper with acid dyes and/or direct dyes in an aqueous medium. The papers obtained show a high color strength, with substantially no two sidedness of the coloration.

Water-soluble benzylated polyamidoamines

A process for removing anionic compounds from water which is recycled in manufacturing processes, and from waste water, by adding (1) water-soluble products obtained by reacting an alkylating agent, having an aromatic substituent, with a cationic polyelectrolyte and (2) mineral adsorbents and/or a magnesium salt, aluminum salt or iron salt, with formation and flocculation of water-insoluble reaction products.

Removal of anionic compounds from water

A process for coloring paper with an acid dye and/or direct dye in an aqueous medium in the presence of a water-soluble reaction product of an alkylating agent, possessing an aromatic substituent, with a cationic polyelectrolyte. The process gives papers with high color strength and substantially avoids cylinder twosidedness of the coloration.

Coloring of paper

A process for the manufacture of polyalkylenepolyamines by reacting a primary or secondary amine with a compound of the formula ##STR1## where X is --Cl, --Br, or --OSO.sub.3 H and R.sup.1 and R.sup.2 are H or saturated alkyl of 1 to 4 carbon atoms, and with at least the stoichiometric amount, based on the compound of the formula I, of an aqueous solution, of from 15 to 45 percent strength, of an alkali metal hydroxide or alkaline earth metal hydroxide, at from 60.degree. to 200.degree. C., cooling the reaction mixture to a temperature at which 2 aqueous phases form, and separating off the upper phase, containing polyalkylenepolyamnines. The rate of reaction can be increased by adding catalytic amounts of compounds which initiate the polymerization of alkyleneimines.

Manufacture of polyalkylenepolyamines

Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a block copolymer of the formula: ##STR1## x is from 50 to 250, y is from 20 to 100, the ratio of x to y is from 6.5:1 to 1:15, with compounds having at least four basic NH groups in a weight ratio of from 0.8:1 to 30:1. The products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

Water-soluble, crosslinked nitrogen-containing condensation products

A zinc electroplating bath which contains polyalkylenepolyamines which possess alkyl and sulfoalkyl groups.

Zinc electroplating bath

Crosslinked water-soluble reaction products for the papermaking industry obtained by reacting

Incorporating a crosslinked polyamidoamine condensation product into

An aqueous cyanide-free alkaline zinc bath for electroplating metallic surfaces with mirror-bright zinc coatings, which bath contains zinc ions, alkali metal hydroxides and, as the brightener, a polyalkylenepolyamine which is at least partially alkylated, with alkyl of 1 to 3 carbon atoms, at the basic nitrogens.

Water-soluble, crosslinked nitrogen-containing condensation products, the viscosity of which, in aqueous solution, increases with increasing temperature, are obtained by reacting a chlorohydrin-ether of the formula ##STR1## where x is from 50 to 250, y is from 20 to 100, the ratio x:y is from 6.1:1 to 1:15 and n is from 0.5 to 5, with ethyleneimine in the weight ratio of from 1:10.1 to 1:0.8; the condensation products are added to aqueous systems, e.g. polymer solutions and polymer dispersions, to improve the viscosity characteristics.

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Bobenheim, Germany

Werner Streit