Low toxicity, low odor, low volatility solvent for agricultural chemical formulations
An agricultural chemical composition comprises a solvent having the general formula CO(OR a )(R b ), wherein R a is a linear or branched alkyl group of one to eight carbon atoms and R b is an aromatic group. Active agricultural components are dissolved in the solvent to produce a solution usable for distributing the active components.
1. An agricultural chemical formulation consisting of a blend of:
between about 5% and about 70% by weight of ametryn, triadimenol, imidacloprid, epoxiconazole, chlorothalonil, diflufenican, cypermethrin, fluoxastrobin, boscalid, nicosulfuron, metsulfuron, trifluralin, bifenthrin, myclobutanil, pendimethalin, deltamethrin, tolfenpyrad, pyridaben, tebuconazole, metolachlor, carfentrazone, clomazone, propanil or a mixture thereof dissolved in one or more ester compounds having the general formula CO(OR a )(R b ), wherein R a is a linear or branched alkyl group of one to eight carbon atoms and R b is an aromatic group and optionally between about 3% by weight to about 50% by weight of an emulsifier selected from a cationic surfactant, a mixture of the cationic surfactant and an anionic surfactant and a mixture of a the cationic surfactant, the anionic surfactant and a nonionic surfactant, stabilizer, anti-oxidant, corrosion inhibitor, activator, wetting agent, dye humectant, a co-solvent selected from dimethylsulfoxide, cyclohexanone, an n-alkylpyrrolidone, a fatty acid dimethyl ester, a fatty acid ester, a dibasic ester, an aromatic hydrocarbon, an aliphatic hydrocarbon, a dimethylamide, a ketone, an ether, an amide, a carboxylic acid, an aldehyde, an epoxide, an estermide, an acyl halide, an acid anhydride, a nitrile, a nitro, a thiol and a sulfide or a combination thereof, where the % by weight is based on the total weight of the blend.
2. The agricultural chemical formulation of claim 1 , wherein R b comprises a benzene ring.
3. The agricultural chemical formulation of claim 1 , wherein R a is selected from the group consisting of methyl, ethyl, propyl, butyl, pentyl, hexyl, heptyl and, octyl.
4. The agricultural chemical formulation of claim 1 , wherein R b is selected from the group consisting of benzyl, xylyl and, toluyl.
5. The agricultural chemical formulation of claim 1 , wherein an emulsifier is present in the blend.
6. The agricultural chemical formulation of claim 5 wherein the ester is butyl benzoate.
7. The agricultural chemical formulation of claim 1 , wherein two or more ester compounds having the general formula CO(OR a )(R b ), wherein R a is a linear or branched alkyl group of one to eight carbon atoms and R b is an aromatic group are present in the blend.
8. The agricultural chemical formulation of claim 5 , wherein the co-solvent is present in the blend.
9. The agricultural chemical formulation of claim 8 , wherein the co-solvent is a hydrocarbon.
10. A chemical composition consisting of a blend of between about 5% and about 70% by weight of ametryn, triadimenol, imidacloprid, epoxiconazole, chlorothalonil, diflufenican, cypermethrin, fluoxastrobin, boscalid, nicosulfuron, metsulfuron, trifluralin, bifenthrin, myclobutanil, pendimethalin, deltamethrin, tolfenpyrad, pyridaben, tebuconazole, metolachlor, carfentrazone, clomazone, propanil or a mixture thereof dissolved in butyl benzoate and optionally between about 3% by weight and about 50% by weight of a co-solvent selected from dimethylsulfoxide, cyclohexanone, an n-alkylpyrrolidone, a fatty acid dimethyl ester, a fatty acid ester, a dibasic ester, an aromatic hydrocarbon, an aliphatic hydrocarbon, a dimethylamide, a ketone, an ether, an amide, a carboxylic acid, an aldehyde, an epoxide, an estermide, an acyl halide, an acid anhydride, a nitrile, a nitro, a thiol, a sulfide, and a mixture thereof, where the % by weight is based on the total weight of the blend.
11. A process of making an agricultural chemical formulation according to claim 1 , comprising:
dissolving ametryn, triadimenol, imidacloprid, epoxiconazole, chlorothalonil, diflufenican, cypermethrin, fluoxastrobin, boscalid, nicosulfuron, metsulfuron, trifluralin, bifenthrin, myclobutanil, pendimethalin, deltamethrin, tolfenpyrad, pyridaben, tebuconazole, metolachlor, carfentrazone, clomazone, propanil or a mixture thereof in one or more ester compounds having the general formula CO(OR a )(R b ), wherein R a is a linear or branched alkyl group of one to eight carbon atoms and R b is an aromatic group wherein a mass ratio of the agricultural compound to the one or more ester compounds is between about 0.25:1 and about 20:1.
12. The agricultural chemical formulation according to claim 1 , wherein between about 60% and about 70% by weight of ametryn, triadimenol, imidacloprid, epoxiconazole, chlorothalonil, diflufenican, cypermethrin, fluoxastrobin, boscalid, nicosulfuron, metsulfuron, trifluralin, bifenthrin, myclobutanil, pendimethalin, deltamethrin, tolfenpyrad, pyridaben, tebuconazole, metolachlor, carfentrazone, clomazone, propanil or a mixture thereof is dissolved in the one or more ester compounds having the general formula CO(OR a )(R b ), wherein R a is a linear or branched alkyl group of one to eight carbon atoms and R b is an aromatic group.