2-Polyfluoroalkylmalonic acids and their derivatives and their preparation and use

2-Polyfluoroalkylmalonic acids and their derivatives of the formula in which R1 stands for a C3- to C21-perfluoroalkyl and M and M in each case stand for hydrogen, an alkali metal, ammonium or a C1- to C10-alkyl, are made available, furthermore acrylic compounds of the formula in which R1 has the ab...

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Hauptverfasser: AKAZAWA,TADASHI, IWATSUKI,SHOJI
Format: Patent
Sprache:eng ; ger
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Zusammenfassung:2-Polyfluoroalkylmalonic acids and their derivatives of the formula in which R1 stands for a C3- to C21-perfluoroalkyl and M and M in each case stand for hydrogen, an alkali metal, ammonium or a C1- to C10-alkyl, are made available, furthermore acrylic compounds of the formula in which R1 has the abovementioned meaning and Y stands for a carboxyl group or a functional group derived from this, and also polymers which contain the monomeric units of the formula in which R1 and Y have the abovementioned meanings, and optionally structural units originating from at least one ethylenically unsaturated compound. These are useful as water- and oil-repellent agents and also as intermediates for the preparation of other substances which have practical utility per se.