Dow Agrosciences LLC

Akzo Nobel Chemicals International B.v.

Akzo Nobel Coatings International B.v.

Nouryon Chemicals International B.v.

Martin W Murray

Shawn Zhu

Stephen L Wilson

Peng Xu

Jinxia Susan Sun

Christine Puglisi

Brandon Matthew Downer

Michael Walters

Qingwen Wendy Yuan-Huffman

Marcus Boone

The present invention relates to an aqueous agrochemical spray solution containing an agrochemical active and a surfactant. The spray solution comprises a dispersed phase comprising dispersed particles which have an average particle size between 1 to 100 microns and the concentration of said dispersed particles is from about 0.001 to 5 wt %. The aqueous agrochemical spray solution is capable of reducing the volume of the fine droplets in mist whose size is less than 150 microns during spraying by at least 20% compared to the same aqueous spray solution without the presence of the surfactant. The present invention also relates to a method of reducing the spray drift of an aqueous agrochemical spray solution upon spraying with a spraying apparatus. The method includes adding the surfactant to the aqueous agrochemical spray solution in an amount effective to form the dispersed phase.

Macrostructure forming surfactants useful as spray drift control agents in pesticide spraying applications

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Guisborough Cleveland, United Kingdom

Martin W Murray