Fungicidally active polymer dispersions and use thereof

A - Human Necessities – 01 – N

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A01N 31/08 (2006.01) A01N 25/04 (2006.01) A01N 25/10 (2006.01) A01N 25/30 (2006.01) A01N 37/06 (2006.01) A01N 43/50 (2006.01) A01N 43/90 (2006.01) A23C 19/10 (2006.01) A23C 19/11 (2006.01) A23C 19/16 (2006.01) A23L 3/349 (2006.01) C09D 5/14 (2006.01) C09J 11/08 (2006.01)

Patent

CA 2581201

The invention relates to an aqueous polymer dispersion containing A) a polymer dispersion produced by radical polymerization of ethylenically unsaturated monomers, B) stabilizing suitable for carrying out radical polymerization, in addition to C) 0.01 - 20.000 wt. ppm, in relation to the mass of the total dispersion, of at least one compound of general formula la and/or lb wherein R1, R2, R13 and R14 independently represent hydrogen, C1-C6-alkyl, C1-C6- alkoxy, carboxy, nitrile, isonitrile, cyano or halogen, R3 - R12 and R15- R24 independently represent hydrogen and selected organic radicals, and wherein at least one of the substituents R3 - R12or R15 - R24 represents hydroxyl and/or alkoxy and/or alkanoyloxy. The aqueous polymer dispersion can be used to coat foodstuffs, as a dye or as an adhesive and the films thus obtained are characterized by high fungicidal resistance.

L'invention concerne une dispersion polymère aqueuse contenant : A) une dispersion polymère produite par polymérisation radicalaire de monomères éthyléniquement insaturés ; B) un agent de stabilisation servant à effectuer ladite polymérisation radicalaire, et ; C) entre 0,01 et 20.000 ppm en poids, par rapport à la masse totale de la dispersion, d'au moins un composé de formule générale Ia ou Ib dans laquelle : R1, R2, R13 et R14 représentent indépendamment les uns des autres hydrogène, alkyle en C1-C6, alcoxy en C1-C6, carboxy, nitrile, isonitrile, cyano ou halogène ; R3 à R12 et R15 à R24désignent indépendamment les uns des autres hydrogène, et des radicaux organiques sélectionnés ; au moins un des substituants R3 à R12 ou R15 à R24 représentant hydroxyle et/ou alcoxy et/ou alcanoyloxy. La dispersion polymère aqueuse selon l'invention peut être appliquée sur des denrées alimentaires, en tant que colorant ou substance adhésive, et les pellicules ainsi formées sont caractérisées par une résistance fongique élevée.

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