Invention Grant
- Patent Title: Macrostructure forming surfactants useful as spray drift control agents in pesticide spraying applications
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Application No.: US15869217Application Date: 2018-01-12
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Publication No.: US10357032B2Publication Date: 2019-07-23
- Inventor: Jinxia Susan Sun , Shawn Zhu , Martin W. Murray , Marcus Boone , Michael Walters , Qingwen Wendy Yuan-Huffman , Christine Puglisi , Brandon Matthew Downer , Stephen L. Wilson
- Applicant: AKZO NOBEL CHEMICALS INTERNATIONAL B.V. , DOW AGROSCIENCES LLC
- Applicant Address: NL Amersfoort US IN Indianapolis
- Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.,DOW AGROSCIENCES LLC
- Current Assignee: AKZO NOBEL CHEMICALS INTERNATIONAL B.V.,DOW AGROSCIENCES LLC
- Current Assignee Address: NL Amersfoort US IN Indianapolis
- Agency: Norris McLaughlin, P.A.
- Main IPC: A01N25/30
- IPC: A01N25/30 ; A01N25/06 ; A01N57/20 ; A01N39/04 ; A01N37/38

Abstract:
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.
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