Aqueous insecticidal compositions and the use thereof for protecting lignocellulose-containing materials

摘要

The invention relates to aqueous insecticidal compositions embodied in the form of an aqueous polymer fine particle dispersion containing at least one type of organic insecticidal active substance whose water solubility is equal to or less than 5 g/l at 25 °C/1013 mbar and a polymer particle average size, determined by dynamic light scattering, is equal to or less than 300 nm, wherein the polymer particles containing at least one insecticidal active substance exhibit a cationic surface charge and the aqueous dispersion of active substance containing polymer particles is obtained by radical aqueous emulsion polymerisation of an ethylenically unsaturated monomer composition M, in which said ethelenycally unsaturated monomer M contains at least one type of insecticidal active substance in a dissolved form. The use of the inventive aqueous insecticidal compositions for protecting lignocellulose-containing materials, in particular wood, against infest pest attacks is also disclosed.