Pesticidal compositions of polyoxyalkylene alkylamine surfactants having reduced eye irritation
First Claim
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1. A composition which is an aqueous solution comprising:
- (a) a glyphosate herbicide in a herbicidally effective amount,(b) an amine surfactant component having the chemical structure ##STR8## wherein x is a number from about 7 to about 19;
n1 and n2 are numbers independently selected from 1 to about 30;
the average sum of n1 and n2 is 2 or greater;
R1 and R2 are C2-C4 alkylene radicals, said amine surfactant being in an amount sufficient to potentiate the glyphosate herbicidal activity but at the same time sufficient to cause unacceptable eye irritation; and
(c) an effective eye irritation reducing amount of a phosphate monoester or mixture of phosphate monoesters having the general formula ##STR9## wherein R1 is C8 -C20 alkyl or C8 -C20 alkylphenyl;
R is C2 -C4 alkylene;
m is zero or a number up to about 60;
alone or in combination with a phosphate diester or mixture of phosphate diesters having the general formula;
##STR10## wherein R, R1, and m are as just described, provided the weight percentage of phosphate monoester (on monoesters) exceeds that of the phosphate diester (or diesters).
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Abstract
There are provided compositions of certain polyoxyalkylene alkylamine surfactants having eye irritation reduced by the addition of an effective amount of a sulfated polyoxyalkylene alkylphenol, alcohol sulfate, polyoxyalkylene alcohol sulfate, mono- or dialcohol phosphate mono- or di- (polyoxyalkylene alcohol) phosphate, mono-or di- (polyoxyalkylene alkylphenol) phosphate, polyoxyalkylene alkylphenol carboxylate or polyoxyalkylene alcohol carboxylate surfactant. Also provided are pesticidal, particularly herbicidal, compositions comprising polyoxyalkylene alkylamine surfactants having eye irritation reduced by addition of these eye irritation reducing compounds.
56 Citations
9 Claims
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1. A composition which is an aqueous solution comprising:
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(a) a glyphosate herbicide in a herbicidally effective amount, (b) an amine surfactant component having the chemical structure ##STR8## wherein x is a number from about 7 to about 19;
n1 and n2 are numbers independently selected from 1 to about 30;
the average sum of n1 and n2 is 2 or greater;
R1 and R2 are C2-C4 alkylene radicals, said amine surfactant being in an amount sufficient to potentiate the glyphosate herbicidal activity but at the same time sufficient to cause unacceptable eye irritation; and(c) an effective eye irritation reducing amount of a phosphate monoester or mixture of phosphate monoesters having the general formula ##STR9## wherein R1 is C8 -C20 alkyl or C8 -C20 alkylphenyl;
R is C2 -C4 alkylene;
m is zero or a number up to about 60;
alone or in combination with a phosphate diester or mixture of phosphate diesters having the general formula;
##STR10## wherein R, R1, and m are as just described, provided the weight percentage of phosphate monoester (on monoesters) exceeds that of the phosphate diester (or diesters). - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. In an aqueous herbicidal solution of a glyphosate herbicide potentiated with a polyoxyalkylene alkylamine surfactant having the chemical structure ##STR11## wherein x is a number from about 7 to about 19;
- n1 and n2 are numbers independently selected from 1 to about 30;
the average sum of n1 and n2 is 2 or greater; and
R1 and R2 are C2 -C4 alkylene radicals, the improvement characterized by having incorporated in the solution an amount effective to appreciably reduce the eye irritation of the solution of a phosphate monoester or diester surfactant or a mixture thereof having the general formula ##STR12## wherein R1 is C8 -C20 alkyl or C8 -C20 alkylphenyl;
R is C2 -C4 alkylene radical, ethylene or propylene;
m is zero or a number up to about 60; and
R2 is hydroxyl or the R1 --O--(RO)m radical wherein R, R1 and m are as just described, wherein the weight percentage of phosphate monoester surfactant equals or exceeds that of phosphate diester surfactant. - View Dependent Claims (9)
- n1 and n2 are numbers independently selected from 1 to about 30;
Specification