Glyphosate salt herbicidal composition
AssigneeMonsanto Technology LLC
InventorsDavid R. Eaton, Jeffrey A. Graham, Henry Agbaje
Life of this patent
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Abstract
A herbicidal composition comprises in aqueous solution a mixture of salts of glyphosate at a total glyphosate a.e. concentration not less than about 360 g/l, wherein (a) said glyphosate is in anionic form accompanied by low molecular weight non-amphiphilic cations in a total molar amount of about 100% to about 120% of the molar amount of said glyphosate; (b) said cations comprise potassium and propylammonium (e.g., isopropylammonium) cations in a mole ratio of about 70:30 to about 90:10; and (c) said potassium and propylammonium cations together constitute about 90 to 100 molar percent of all of said low molecular weight non-amphiphilic cations in the composition.
Claims19
A herbicidal composition comprising in aqueous solution a mixture of salts of glyphosate at a total glyphosate acid equivalent concentration of about 360 g/l or greater than 360 g/l, wherein (a) said glyphosate is in anionic form accompanied by low molecular weight non-amphiphilic cations in a total molar amount of about 100% to about 120% of the molar amount of said glyphosate;
- (b) said cations comprise potassium and propylammonium cations in a mole ratio of 70:30 to 90:10;
- and (c) said potassium and propylammonium cations together constitute about 90 to 100 molar percent of all of said low molecular weight non-amphiphilic cations in the composition.
A tank-mix herbicidal composition comprising, in an aqueous application medium, a glyphosate herbicide and a coherbicide of low water solubility, the composition being prepared by a process comprising admixing in a suitable vessel with agitation:
- (i) water in an amount suitable for application to a plant and/or soil surface by spraying;
- (ii) a herbicidally effective amount of an aqueous concentrate herbicidal composition comprising in aqueous solution a mixture of salts of glyphosate at a total glyphosate a.e. concentration of about 360 g/l or greater than 360 g/l, wherein (a) said glyphosate is in anionic form accompanied by low molecular weight non-amphiphilic cations in a total molar amount of about 100% to about 120% of the molar amount of said glyphosate;
- (b) said cations comprise potassium and propylammonium cations in a mole ratio of 70:30 to 90:10;
- and (c) said potassium and propylammonium cations together constitute about 90 to 100 molar percent of all of said low molecular weight non-amphiphilic cations in the composition;
- said composition further comprising as a major or sole surfactant component a polyoxyethylene tertiary amine or etheramine surfactant comprising on average about 7 or more than 7 EO units;
- and
- (iii) a herbicidally effective amount of a suspension concentrate formulation comprising the coherbicide.
Dependencies are inferred from the claim text.