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US 2014/0179529 A1Published application
Amine and amine oxide surfactants for controlling herbicide spray drift
AssigneeDow AgroSciences LLC
InventorsBrandon M. Downer, Mei Li, Lei Liu, Kuide Qin, Holger Tank, Stephen L. Wilson, Hong Zhang
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Abstract
Spray drift during the application of an aqueous mixture of glyphosate and an auxinic herbicide is reduced by incorporating certain tertiary amine or tertiary amine oxide surfactants into the aqueous solution or mixture to be sprayed.
Claims13
A method to reduce spray drift during the application of an aqueous herbicidal spray mixture containing glyphosate and an auxinic herbicide comprising incorporating into the aqueous herbicidal spray mixture from about 0.02 to about 2 weight percent of a surfactant selected from a tertiary amine surfactant of the formula:
- wherein R1 represents a straight or branched chain (C12-C18) alkyl and R2 and R3 independently represent a straight or branched chain (C1-C18) alkyl,
- a tertiary amine oxide surfactant of the formula:
- wherein R4 is a straight or branched chain (C10-C18) alkyl or an alkyletherpropyl or alkylamidopropyl of the formula:
- wherein R7 is a straight or branched chain (C10-C18) alkyl, and
- R5 and R6 independently are straight or branched chain (C1-C18) alkyl or ethoxylates or propoxylates of the formula:
- wherein n is an integer from 1 to 20,
- or mixtures thereof.
4 more elements
Dependencies are inferred from the claim text.