Hoechst Aktiengesellschaft

Cassella Aktiengesellschaft

Manfred Pelster

Fritz Engelhardt

Erich Schinzel

Karl-Heinz Keil

Klaus Sternberger

Ulrich Greiner

Improvements in the fastness properties of substrates dyed with reactive dyestuffs are achieved by a dyeing after-treatment with an agent which is the reaction product polyethyleneimine and a bifunctional alkylating agent.

Process for producing dyeings with reactive dyestuffs

Perfluoroalkyl esters of anthranilic acids, of the formula (1) ##STR1## in which R.sub.1 is perfluoroalkyl or perfluoroalkoxy-perfluoroalkyl, R.sub.2 is hydrogen, alkyl or phenyl, R.sub.3 is one or more non-chromophoric radicals, such as fluorine, chlorine, bromine, lower alkyl, lower alkoxy, acylamino, carboxyl or functionally modified carboxyl groups, sulfo or functionally modified sulfo groups, or phenyl, X is the radical of an aliphatic or aromatic monocarboxylic or polycarboxylic acid, the radical of a halogen-active heterocyclic compound or an alkylaminocarbonyl or arylaminocarbonyl radical, m is an integer from 1 to 6, preferably 1 to 4 and n is an integer from 1 to 3. These compounds are useful for soil-repellent finishing of textile material.

Perfluoroalkyl esters of anthranilic acids

Growing community of inventors

Speyer, Germany

Manfred Pelster