Hoechst Aktiengesellschaft

Cassella Aktiengesellschaft

Hoechstaktiengesellschaft

Gunter Rosch

Erich Schinzel

Rudiger Erckel

Thomas Martini

Dieter Gunther

Wilfried Sahm

Heinz Probst

Ulrich Pintschovius

Norbert Schonberger

Helmut Mengler

Hans Frischkorn

Gunter Prossel

Horst Fruhbeis

Klaus Adrian

Fritz Engelhardt

Karl-Heinz Keil

Hans J Nestler

Klaus Sternberger

Helmut Eckes

Otto Smerz

Heinz E Schneider

Gunter Hohlfeld

Gerhard Sauer

Anton Horn

Jorg Langer

Process for working up regenerated sizes by adding oxidative chlorine-containing compounds, in particular sodium chlorite. These compounds have the effect in the regenerated size of oxidatively brightening the interfering dark-colored impurities.

Method of recovering regenerated sizes

A textile auxiliary for improving the fastness of materials dyed or printed with a dyestuff is a copolymer of a diallylammonium monomer, a vinyl amide monomer and a (meth)acrylic ester monomer.

Copolymer, process for its preparation, and its use

Cationic compounds of the formula (1) ##STR1## in which R denotes alkyl, hydroxyalkyl, alkoxyalkyl, phenylalkyl, or phenoxyalkyl,

Cationic compounds of the naphthalimide series, process for their

A process for the simultaneous desizing and bleaching of textile material made from cellulose fibers, which comprises treating the textile material with a liquor containing per liter of water

Process for the simultaneous desizing and bleaching of textile material

Oxidative desizing agent consisting substantially of from 5 to 20 weight % of sodium or ammonium persulfate or potassium, sodium, ammonium or calcium peroxodiphosphate, from 20 to 50 weight % of one or more surfactants selected from the group of C.sub.8 -C.sub.20 -sec.-alkanesulfonates, C.sub.4 -C.sub.12 -alkylphenol-oxethylates having 6 to 12 ethylene oxide moieties, or C.sub.10 -C.sub.18 -fatty alcohol-oxethylates having 3 to 8 ethylene oxide moieties, and water in the amount remaining to give 100%. The advantage of this desizing agent resides in the fact that a substantially smaller amount of persulfate is required than for desizing with persulfate alone. Moreover, this desizing agent is liquid and thus easy to be dosed.

Liquid oxidative desizing agent and process for oxidative desizing

Mixtures of optical brighteners consisting of

Mixtures of optical brighteners

Mixtures of optical brighteners consisting of from (a) 0.98 to 0.50 part by weight of a mixture consisting of from 0.05 to 0.95 part by weight of a brightener of the series of the benzoxazolyl-stilbenes and of from 0.95 to 0.05 part by weight of a brightener of the series of the aryltriazoles and (b) of from 0.02 to 0.5 part by weight of a brightener of the series of the bis-benzoxazolyl-stilbenes or of the bis-benzothiazolyl-stilbenes.

Mixtures of optical brighteners and their use for the optical brightening

Mixtures of optical brighteners consisting of 5 to 95% by weight of a compound of the formula ##STR1## in which A denotes a o- or p-cyanophenyl group, and 95 to 5% by weight of one or more further optical brighteners.

Mixtures of optical brighteners consisting of 5 to 95 parts by weight of a mixture consisting of 0 to 80% by weight of the compound of the formula 1 ##STR1## 20 to 100% by weight of the compound of the formula 2 ##STR2## and 0 to 80% by weight of the compound of the formula 3 ##STR3## and 95 to 5% by weight of one or more other optical brighteners.

Triazolyl stilbene compounds of the formula ##STR1## wherein A is a benzene or naphthalene ring optionally substituted by non-chromophoric substituents and B is a substituted 1,2,4-oxdiazole (3) or 1,3,5-oxdiazole (2) group, as well as a procedure for their manufacture and their use as optical brighteners.

Novel stilbene compounds: process for their manufacture and their use as

Compounds of the formula ##STR1## wherein X is O or S, R.sub.1 and R.sub.2 each are hydrogen, fluorine, chlorine, phenyl, alkyl, alkoxy, dialkylamino, trialkylammonium, acylamino or optionally functionally modified carboxy or sulfo groups, two adjacent radicals R.sub.1 and R.sub.2 optionally forming together a phenylene, a lower alkylene or a 1,3-dioxapropylene group; and A is a group of the formulae ##STR2## in which R.sub.3 is an alpha-, beta- or gamma-pyridyl, pyridyl-methylene, thiophenyl, furanyl, benzofuranyl, pyrazinyl, pyrimidinyl or pyridazinyl group. These compounds, which are suitable as optical brighteners, are prepared by reaction of a compound of the formula ##STR3## with a compound of the formula

Novel stilbene compounds and process for the manufacture thereof

Novel oxidative desizing agent consisting essentially of from 10 to 80, preferably 50 to 80% by weight of a surfactant and from 20 to 90, preferably 20 to 50% by weight of potassium persulfate. This desizing agent may optionally also contain from 5 to 25% by weight of a solubilizer with a simultaneous reduction of the surfactant and persulfate portions.

Oxidative desizing agent and process for oxidative desizing

Compounds of the general formula (1) ##STR1## wherein R.sub.1 denotes hydrogen, halogen, alkyl, alkoxy or, conjointly with R.sub.2, a fused benzo ring, R.sub.2 denotes hydrogen, alkyl, alkoxy, halogen, phenyl, cyano, carboalkoxy, carboxyl, carbonamido, monoalkylcarbonamido, dialkylcarbonamido, sulfo, alkylsulfonyl, alkyloxysulfonyl, sulfonamido, monoalkylsulfonamido or dialkylsulfonamido or, conjointly with R.sub.3, a fused benzo ring, R.sub.3 has the same meaning as R.sub.2, R.sub.4 denotes hydrogen, alkyl, alkoxy, halogen or, conjointly with R.sub.3, a fused benzo ring, R.sub.5 denotes alkyl, hydroxyalkyl, alkoxyalkyl, optionally substituted aralkyl, cyanoethyl, cycloalkyl or a group of the formulae --CH.sub.2 CN, --CH.sub.2 CONH.sub.2 or --CH.sub.2 COO--alkyl, A denotes a group of the formulae ##STR2## or

Quaternized, bridged benzimidazolylbenzimidazoles, processes for their

Brighteners for detergents consisting of a mixture of 4,4'-bis-(2-morpholino-4-anilino-1,3,5-triazinylamino)-stilbene-2,2'-disul fonic acid-di-Na salt and from 5 to 50% by weight, calculated on said brightener, of another brightener of the formula ##STR1## in the above formula, M is an alkali metal cation, preferably sodium, X is a group of the formula --COR.sub.2 or --SO.sub.2 R.sub.3, R.sub.2 being C.sub.1 -C.sub.8 -alkyl and R.sub.3 being C.sub.1 -C.sub.5 -alkyl, C.sub.4 -C.sub.8 -cycloalkyl, phenyl or toluyl, Y is hydrogen or C.sub.1 -C.sub.5 -alkyl, A is C.sub.3 -C.sub.6 -alkylene, R.sub.1 is hydrogen, C.sub.1 -C.sub.5 -alkyl, C.sub.4 -C.sub.8 -cycloalkyl, or a group of the formula ##STR2## and Z is an anilino group, a chloroanilino group or a morpholino group. Said brightener mixtures are color-stable and do not show any green discoloration even after a prolonged storage in a moist atmosphere.

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Bad Soden am Taunus, Germany

Gunter Rosch