Aqueous concentrate pesticidal compositions having improved...

A - Human Necessities – 01 – N

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A01N 25/30 (2006.01) A01N 57/20 (2006.01)

Patent

CA 2375949

An aqueous concentrate pesticidal composition is provided, comprising (a) a water-soluble pesticide in an amount of about 50 to about 500 g/l; (b) an etheramine surfactant; and (c) an anionic surfactant having the chemical formula (III) R7-(O-R8)n-O-X where R7 is a C4-22 linear or branched, saturated or unsaturated, aliphatic hydrocarbyl or a (C8-12 alkyl)phenyl group, R8 groups are independently C2-4 alkylidene groups, n is 0 to about 60 and X is an anionic radical selected from carboxylate, ether carboxylate, sulfate and phosphate; the weight ratio of the anionic surfactant to the etheramine surfactant being about 1:10 to about 1:1. Compositions of the invention have reduced injuriousness to skin and/or eyes than otherwise similar compositions lacking only the anionic surfactant.

L'invention porte sur une composition aqueuse concentrée de pesticide comprenant (a) un pesticide hydrosoluble à raison d'environ 50 à environ 500 g/l; (b) un tensio-actif d'étheramine; et (c) un tensio-actif anionique de formule chimique (III) R?7¿-(O-R?8¿)¿n?-O-X dans laquelle: R?7¿ est un hydrocarbyle aliphatique C¿4-22? linéaire ou ramifié, saturé ou non, ou un groupe (C¿8-12? alkyl)phényle; les groupes R?8¿ sont indépendamment des groupes C¿2-4? alkylidène; n est de 0 à environ 60; et X est un radical anionique choisi parmi carboxylate, éthercarboxylate, sulfate et phosphate; le rapport pondéral du tensio-actif anionique au tensio-actif d'étheramine étant compris entre environ 1:10 et environ 1:1. Lesdites compositions sont moins nocives pour les yeux et la peau que d'autres compositions sinon similaires dans lesquelles ne manque que le tensio-actif anionique.

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