Compositions and methods for improving the compatibility of water soluble herbicide salts
First Claim
1. A method of improving the compatibility of aqueous herbicide solutions containing a water soluble salt of 2,4-D and a water soluble salt of glyphosate, wherein the solutions contain one or more inorganic cations selected from the group consisting of NH4+, Na+, K+, Ca2+, Mg2+, Fe2+, Fe3+, Cu2+, Mn2+ and Zn2+, which comprises adding to the aqueous herbicide solution one or more polyethylenimine or polyvinylamine crystallization inhibitors, wherein the pH of the aqueous herbicide solution is below or about 6.5, the weight percent ratio of 2,4-D to glyphosate on an acid equivalent basis is from about 16:
- 1 to about 1;
16, and the crystallization inhibitor is added in an amount sufficient to improve compatibility and reduce the amount of solids formed.
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Accused Products
Abstract
The compatibility of aqueous herbicide solutions containing water soluble salts of 2,4-D and glyphosate in the presence of inorganic cations is improved by the addition of polyethylenimine or polyvinylamine crystallization inhibitors.
3 Citations
10 Claims
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1. A method of improving the compatibility of aqueous herbicide solutions containing a water soluble salt of 2,4-D and a water soluble salt of glyphosate, wherein the solutions contain one or more inorganic cations selected from the group consisting of NH4+, Na+, K+, Ca2+, Mg2+, Fe2+, Fe3+, Cu2+, Mn2+ and Zn2+, which comprises adding to the aqueous herbicide solution one or more polyethylenimine or polyvinylamine crystallization inhibitors, wherein the pH of the aqueous herbicide solution is below or about 6.5, the weight percent ratio of 2,4-D to glyphosate on an acid equivalent basis is from about 16:
- 1 to about 1;
16, and the crystallization inhibitor is added in an amount sufficient to improve compatibility and reduce the amount of solids formed.
- 1 to about 1;
-
2. An aqueous herbicide solution of improved compatibility containing one or more inorganic cations selected from the group consisting of NH4+, Na+, K+, Ca2+, Mg2+, Fe2+, Fe3+, Cu2+, Mn2+ and Zn2+ comprising water soluble salts of both 2,4-D and glyphosate, and one or more polyethylenimine or polyvinylamine crystallization inhibitor, wherein the pH of the aqueous herbicide solution is below or about 6.5, the weight percent ratio of 2,4-D to glyphosate on an acid equivalent basis is from about 16:
- 1 to about 1;
16, and the crystallization inhibitor is added in an amount sufficient to improve compatibility and reduce the amount of solids formed. - View Dependent Claims (3, 4, 5, 6, 7, 8)
- 1 to about 1;
-
9. A dry herbicide composition comprising one or more polyethylenimine or polyvinylamine crystallization inhibitors, a water soluble salt of 2,4-D or glyphosate, or and a mixture of water soluble salts of 2,4-D and glyphosate, wherein the dry herbicide composition is added to an aqueous herbicidal solution with a pH below or about 6.5, the weight percent ratio of 2,4-D to glyphosate on an acid equivalent basis in the aqueous herbicidal solution is from about 16:
- 1 to about 1;
16, and the one or more crystallization inhibitors are added in an amount sufficient to improve compatibility and reduce the amount of solids formed in the aqueous herbicidal solution. - View Dependent Claims (10)
- 1 to about 1;
Specification