A - Human Necessities – 01 – N
Patent
A - Human Necessities
01
N
A01N 25/04 (2006.01) A01N 25/26 (2006.01) A01N 25/28 (2006.01) A01N 43/36 (2006.01) A01N 53/00 (2006.01) B27K 5/00 (2006.01)
Patent
CA 2599507
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.
La présente invention concerne des compositions insecticides aqueuses se présentant sous la forme d'une dispersion aqueuse de fines particules polymériques contenant au moins un principe actif organique insecticide d'une solubilité de maximum 5 g/l à 25 °C/1013 mbar. Ces particules polymériques ont une granulométrie moyenne, déterminée par dispersion lumineuse dynamique, de maximum 300 nm. Les particules polymériques contenant le ou les principes actifs insecticides, ont une charge superficielle cationique et la dispersion aqueuse des particules polymériques contenant un principe actif est obtenue par polymérisation en émulsion aqueuse radicale d'une composition monomérique M éthyléniquement insaturée de monomères M éthyléniquement insaturés contenant au moins un principe actif insecticide sous forme dissoute. L'invention concerne l'utilisation de ces compositions insecticides aqueuses pour protéger les matières contenant de la lignocellulose, notamment du bois, de l'attaque d'insectes nuisibles.
Amrhein Patrick
Habicht Joerg
Haentzschel Dirk
Kleist Gunnar
Schoepke Holger
Basf Aktiengesellschaft
Robic
LandOfFree
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