Herbicidal picolinic acid salt composition
AssigneeNufarm Australia Limited
InventorsAristos Panayi, Chad Richard Ord Sayer
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Abstract
A herbicidal concentrate composition comprising a mixture of the monomethylamine and dimethylamine salts of at least one picolinic acid herbicide of formula (Ia): wherein X2 is selected from hydrogen and amino.
Claims17
A herbicidal concentrate composition comprising a mixture of the monomethylamine (MMA) and dimethylamine (DMA) salts of at least one picolinic acid herbicide of formula
- wherein X2 is selected from hydrogen and amino and mixtures of two or more thereof.
A composition consisting essentially of:
- i) clopyralid in the form of the monomethylamine salt and clopyralid in the form of the dimethylamine salt wherein the molar ratio of monomethylamine to dimethylamine is preferably in the range of from 10:90 to 90:10;
- ii) water;
- iii) no more than 10% by weight based on the total weight of the composition of additives selected from surfactants and compatibility agents;
- and
- iv) wherein the concentration of picolinic acid salt herbicide in the aqueous composition is at least 500 g/L based on herbicidal acid equivalent.
A process for preparing a composition described in any one of the previous claims comprising providing at least one herbicidal picolinic acid selected from aminopyralid and clopyralid and reacting the herbicide with methylamine and dimethylamine in a molar ratio of 10:90 to 90:10 to provide a mixture of picolinic acid methylamine and dimethylamine salts.
Dependencies are inferred from the claim text.