Agricultural compositions
View Patent ↗Compositions have been discovered that are suitable for forming a stable dispersion. The compositions comprise an agriculturally active compound and a multivalent metal oligomeric or polymeric compound having a molecular weight of from about 150 to about 15,000 Daltons.
1. A dispersion comprising:
a disperse phase including an agriculturally active compound, wherein the agriculturally active compound comprises 30 wt. % to 60 wt. % of the total weight of the dispersion, and wherein the agriculturally active compound is ethylene bisdithiocarbamate and agriculturally acceptable salts and mixtures thereof;
a continuous phase comprising a water immiscible liquid; and
from about 0.675 wt. % to about 2.0 wt. % of a metal compound having a molecular weight of from about 500 to about 15,000 Daltons, wherein the metal compound is selected from the group consisting of a zinc acrylate esters and a zinc acrylate oligomer.
2. The dispersion of claim 1 wherein the water immiscible liquid is an oil.
3. The dispersion of claim 1 wherein the water immiscible liquid is selected from the group consisting of petroleum distillates, glycerides, vegetable oils, esters of vegetable oils, and mixtures thereof.
4. The dispersion of claim 1 , further comprising a non-ionic surfactant.
5. The dispersion of claim 4 , wherein the non-ionic surfactant is selected from the group consisting of: a block copolymer of ethylene oxide, a block copolymer of propylene oxide, block copolymers of ethylene oxide and propylene oxide, and mixtures thereof.
6. The dispersion of claim 4 , wherein the dispersion comprises from about 0.1 wt. % to about 10 wt. % of a non-ionic surfactant based on the weight of the dispersion.
7. The dispersion of claim 1 wherein the agriculturally active compound is characterized by particles having a mean particle size of from about 0.01 to about 100 microns.
8. A dispersion, comprising:
about 30 wt. % to about 60 wt. % ethylene bisdithiocarbamate;
about 0.675 wt. % to about 2.0 wt. % multivalent metal compound selected from the group consisting of: zinc acrylate oligomer and zinc acrylate ester; and
an oil.
9. The dispersion of claim 8 , further comprising about 0.1 wt. % to about 10 wt. % of a non-ionic surfactant selected from the group consisting of: a block copolymer of ethylene oxide, a block copolymer of propylene oxide, block copolymers of ethylene oxide and propylene oxide.