Suspension concentrate formulation containing pyrimethanil

A - Human Necessities – 01 – N

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A01N 43/54 (2006.01) A01N 25/04 (2006.01) A01N 25/30 (2006.01) A01P 3/00 (2006.01)

Patent

CA 2339622

The invention provides an aqueous SC formulation comprising: a) 50 to 80 % w/v pyrimethanil; b) 0.2 to 5 % w/v of a polyoxyethylene-polyoxypropylene block copolymer surfactant; and c) 0.2 to 5 % w/v of a naphthalene formaldehyde condensate surfactant. We have found that formulations according to the invention surprisingly do not solidify when milled during manufacture and also exhibit a low propensity to crystallise when stored for prolonged periods.

Cette invention se rapporte à une formulation de suspension concentrée aqueuse comprenant: a) 50 à 80 % en poids/volume de pyriméthanile; b) 0,2 à 5 % en poids/volume d'un tensioactif à base de copolymère bloc polyoxyéthylène-polyoxypropylène; et c) 0,2 à 5 % en poids/volume d'un tensioactif à base de condensat de naphtalène-formaldéhyde. On a découvert de façon surprenante que ces formulations ne se solidifient pas lorsqu'elles sont passées au broyeur, pendant le processus de fabrication, et elles se caractérisent également par une faible tendance à cristalliser, lorsqu'elles sont entreposées pendant des périodes prolongées.

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