LIQUID SULFONYLUREA HERBICIDE FORMULATIONS
Disclosed are single liquid-phase herbicide compositions comprising by weight from 0.1 to 30% of one or more sulfonylurea herbicides, from 0 to 40% of one or more biologically active agents other than sulfonylurea herbicides, from 0 to 30% of one or more herbicide safeners, from 10 to 99.9% of one or more polyalkoxylated triglycerides wherein no more than about 50% by weight of the fatty acid-derived moieties in the polyalkoxylated triglycerides are derived from hydroxy fatty acids, from 0 to 89.9% of one or more fatty acid esters of C 1 -C 4 alkanols, and from 0 to 70% of one or more additional formulating ingredients.
1 . A single liquid-phase herbicide composition comprising by weight
(a) from 0.1 to 30% of one or more sulfonylurea herbicides;
(b) from 0 to 40% of one or more biologically active agents other than sulfonylurea herbicides;
(c) from 0 to 30% of one or more herbicide safeners;
(d) from 10 to 99.9% of one or more polyalkoxylated triglycerides wherein no more than about 50% by weight of the fatty acid-derived moieties in the polyalkoxylated triglycerides are derived from hydroxy fatty acids;
(e) from 0 to 89.9% of one or more fatty acid esters of C 1 -C 4 alkanols; and
(f) from 0 to 70% of one or more additional formulating ingredients.
2 . The composition of claim 1 wherein component (a) is selected from amidosulfuron, azimsulfuron, bensulfuron-methyl, chlorimuron-ethyl, chlorsulfuron, cinosulfuron, cyclosulfamuron, ethametsulfuron-methyl, ethoxysulfuron, flupyrsulfuron-methyl, flazasulfuron, flucetosulfuron, foramsulfuron, halosulfuron-methyl, imazosulfuron, iodosulfuron-methyl, mesosulfuron-methyl, metsulfuron-methyl, nicosulfuron, orthosulfamuron, oxasulfuron, primisulfuron-methyl, prosulfuron, pyrazosulfuron-ethyl, rimsulfuron, sulfometuron-methyl, sulfosulfuron, thifensulfuron-methyl, triasulfuron, tribenuron-methyl, trifloxysulfuron, triflusulfuron-methyl and tritosulfuron, and salts thereof.
3 . The composition of claim 2 wherein component (a) is selected from nicosulfuron, rimsulfuron and thifensulfuron-methyl, and salts thereof.
4 . The composition of claim 3 wherein component (a) is selected from nicosulfuron and salts thereof.
5 . The composition of claim 1 wherein no more than 5% by weight of the fatty acid-derived moieties in the polyalkoxylated triglycerides of component (d) are derived from hydroxy fatty acids.
6 . The composition of claim 1 wherein no more than 90% by weight of the fatty acid-derived moieties in the polyalkoxylated triglycerides of component (d) is derived from any one fatty acid compound.
7 . The composition of claim 1 wherein component (d) comprises one or more polyalkoxylated vegetable oils selected from polyethoxylated soybean oil and polyethoxylated rapeseed oil.
8 . The composition of claim 1 wherein component (e) is present in an amount of at least 0.1% of the composition by weight and comprises methyl esters of one or more fatty acids.
9 . The composition of claim 8 wherein claim 8 is present in an amount of at least 30% of the composition by weight.
10 . The composition of claim 1 wherein component (f) is present in an amount of at least 0.1% of the composition by weight and comprises one or more ammonium, alkali metal or alkaline earth metal lignosulfonate salts.
11 . The composition of claim 10 wherein component (f) comprises sodium lignosulfonate.
12 . The composition of claim 1 wherein component (f) is present in an amount of at least 0.1% of the composition by weight and comprises one or more surfactants selected from the group consisting of polyethoxylated sorbitan ester surfactants and polyethoxylated sorbitol ester surfactants.
13 . The composition of claim 1 wherein component (f) is present in an amount of at least 0.1% of the composition by weight and comprises a clay.
14 . The composition of claim 1 containing no more than 5% of unmodified triglycerides and no more than 5% of alkoxylated fatty acids by weight.
15 . The composition of claim 1 consisting essentially of by weight from 2 to 8% of nicosulfuron, from 0 to 2% of thifensulfuron-methyl, from 30 to 50% of polyethoxylated soybean oil, from 35 to 65% of methylated soybean oil, from 0.5 to 5% of a clay, and from 0.5 to 4% of one or more lignosulfonates.