Glyphosate formulations containing amidoalkylamine surfactants

Abstract

An herbicidal composition comprising (a) glyphosate or a derivative thereof, (b) an amidoalkylamine surfactants having the general structure: wherein R 1 is a hydrocarbyl having from about 1 carbon atoms to about 22 carbon atoms, and R 2 , R 3 , and R 4 are each independently hydrocarbyl having from about 1 carbon atom to about 6 carbon atoms; and (c) at least one co-surfactant.

1 . A liquid composition comprising:
 (a) glyphosate or a derivative thereof in a concentration greater than 360 grams acid equivalent per liter;   (b) an amidoalkylamine surfactant of structure (I):   
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 22 carbon atoms, R 2  and R 3 , are each independently hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms, and R 4  is hydrocarbylene having from 1 to about 6 carbon atoms; and
 (c) at least one co-surfactant comprising an alkoxylated tertiary amine, an alkoxylated quaternary amine, an alkoxylated tertiary etheramine, an alkoxylated quaternary etheramine, an alkoxylated etheramine oxide, an alkoxylated tertiary amine oxide, an alkoxylated alcohol, a phosphate ester of alkoxylated tertiary amine, a phosphate ester of alkoxylated etheramine, a phosphate ester of alkoxylated alcohol, or a combination thereof; 
 wherein the alkoxylated tertiary amine surfactant is of structure (II): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the alkoxylated quaternary amine surfactant is of structure (III): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, R 4  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms, the sum of x and y is an average value ranging from about 2 to about 50, and X is a charge balancing counter-anion;
 wherein the alkoxylated tertiary etheramine surfactant is of structure (IV): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated quaternary etheramine surfactant is of structure (V): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently a hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; the sum of x and y is an average value ranging from about 2 to about 60; R 5  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms; and A is a charge balancing counter-anion;
 wherein the alkoxylated etheramine oxide surfactant is of structure (VI): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated tertiary amine oxide surfactant is of structure (VII): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the alkoxylated alcohol surfactant is of structure (VIII):
   R 1 —O—(R 2 O) n H  Structure (VIII) 
 
 
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  is hydrocarbylene having 2, 3, or 4 carbon atoms; n is an average value ranging from about 2 to about 50;
 wherein the phosphate ester of the alkoxylated tertiary amine surfactant is of structure (IXa) or structure (IXb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, the sum of each x and y group is independently an average value ranging from about 2 to about 60, and R 4  and R 5  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms;
 wherein the phosphate ester of alkoxylated etheramine surfactant is of structure (Xa) or structure (Xb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 10; the sum of each x and y group is independently an average value ranging from about 2 to about 60; and R 5  and R 6  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms; and
 wherein the phosphate ester of alkoxylated alcohol surfactant is of structure (XIa) or (XIb): 
 
       
         
           
           
               
               
           
         
         wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2  is independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 60; and R 3  and R 4  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms. 
       
     
     
         2 . A liquid composition comprising:
 (a) glyphosate or a derivative thereof;   (b) an amidoalkylamine surfactant of structure (I):   
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 22 carbon atoms, R 2  and R 3 , are each independently hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms, and R 4  is hydrocarbylene having from 1 to about 6 carbon atoms; and
 (c) at least one co-surfactant comprising an alkoxylated tertiary etheramine, an alkoxylated quaternary etheramine, an alkoxylated etheramine oxide, an alkoxylated tertiary amine oxide, a phosphate ester of alkoxylated tertiary amine, a phosphate ester of alkoxylated etheramine, a phosphate ester of alkoxylated alcohol, or a combination thereof; 
 wherein the alkoxylated tertiary etheramine surfactant is of structure (IV): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated quaternary etheramine surfactant is of structure (V): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; the sum of x and y is an average value ranging from about 2 to about 60; R 5  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms; and A is a charge balancing counter-anion;
 wherein the alkoxylated etheramine oxide surfactant is of structure (VI): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated tertiary amine oxide surfactant is of structure (VII): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the phosphate ester of the alkoxylated tertiary amine surfactant is of structure (IXa) or structure (IXb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, the sum of each x and y group is independently an average value ranging from about 2 to about 60, and R 4  and R 5  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms;
 wherein the phosphate ester of alkoxylated etheramine surfactant is of structure (Xa) or structure (Xb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 10; the sum of each x and y group is independently an average value ranging from about 2 to about 60; and R 5  and R 6  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms; and
 wherein the phosphate ester of alkoxylated alcohol surfactant is of structure (XIa) or (XIb): 
 
       
         
           
           
               
               
           
         
         wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2  is independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 60; and R 3  and R 4  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms. 
       
     
     
         3 . A solid composition comprising:
 (a) glyphosate or a derivative thereof;   (b) an amidoalkylamine surfactant of structure (I):   
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 22 carbon atoms, R 2  and R 3 , are each independently hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms, and R 4  is hydrocarbylene having from 1 to about 6 carbon atoms; and
 (c) at least one co-surfactant comprising an alkoxylated tertiary amine, an alkoxylated quaternary amine, an alkoxylated tertiary etheramine, an alkoxylated quaternary etheramine, an alkoxylated etheramine oxide, an alkoxylated tertiary amine oxide, an alkoxylated alcohol, a phosphate ester of alkoxylated tertiary amine, a phosphate ester of alkoxylated etheramine, a phosphate ester of alkoxylated alcohol, or a combination thereof; 
 wherein the alkoxylated tertiary amine surfactant is of structure (II): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the alkoxylated quaternary amine surfactant is of structure (III): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, R 4  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms, the sum of x and y is an average value ranging from about 2 to about 50, and X is a charge balancing counter-anion;
 wherein the alkoxylated tertiary etheramine surfactant is of structure (IV): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated quaternary etheramine surfactant is of structure (V): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; the sum of x and y is an average value ranging from about 2 to about 60; R 5  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms; and A is a charge balancing counter-anion;
 wherein the alkoxylated etheramine oxide surfactant is of structure (VI): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated tertiary amine oxide surfactant is of structure (VII): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the alkoxylated alcohol surfactant is of structure (VIII):
   R 1 —O—(R 2 O) n H  Structure (VIII) 
 
 
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  is hydrocarbylene having 2, 3, or 4 carbon atoms; n is an average value ranging from about 2 to about 50;
 wherein the phosphate ester of the alkoxylated tertiary amine surfactant is of structure (IXa) or structure (IXb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, the sum of each x and y group is independently an average value ranging from about 2 to about 60, and R 4  and R 5  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms;
 wherein the phosphate ester of alkoxylated etheramine surfactant is of structure (Xa) or structure (Xb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 10; the sum of each x and y group is independently an average value ranging from about 2 to about 60; and R 5  and R 6  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms; and
 wherein the phosphate ester of alkoxylated alcohol surfactant is of structure (XIa) or (XIb): 
 
       
         
           
           
               
               
           
         
         wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2  is independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 60; and R 3  and R 4  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms; 
         wherein the weight ratio of glyphosate in grams acid equivalent to total surfactant in grams is from about 3:1 to 5:1. 
       
     
     
         4 . A solid composition comprising:
 (a) glyphosate or a derivative thereof;   (b) an amidoalkylamine surfactant of structure (I):   
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 22 carbon atoms, R 2  and R 3 , are each independently hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms, and R 4  is hydrocarbylene having from 1 to about 6 carbon atoms; and
 (c) at least one co-surfactant comprising an alkoxylated tertiary amine, an alkoxylated quaternary amine, an alkoxylated tertiary etheramine, an alkoxylated quaternary etheramine, an alkoxylated etheramine oxide, an alkoxylated tertiary amine oxide, a phosphate ester of alkoxylated tertiary amine, a phosphate ester of alkoxylated etheramine, a phosphate ester of alkoxylated alcohol, or a combination thereof; 
 wherein the alkoxylated tertiary amine surfactant is of structure (II): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the alkoxylated quaternary amine surfactant is of structure (III): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, R 4  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms, the sum of x and y is an average value ranging from about 2 to about 50, and X is a charge balancing counter-anion;
 wherein the alkoxylated tertiary etheramine surfactant is of structure (IV): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated quaternary etheramine surfactant is of structure (V): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; the sum of x and y is an average value ranging from about 2 to about 60; R 5  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms; and A is a charge balancing counter-anion;
 wherein the alkoxylated etheramine oxide surfactant is of structure (VI): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; m is an average number from about 1 to about 10; and the sum of x and y is an average value ranging from about 2 to about 60;
 wherein the alkoxylated tertiary amine oxide surfactant is of structure (VII): 
 
       
         
           
           
               
               
           
         
       
       wherein R 1  is hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; and the sum of x and y is an average value ranging from about 2 to about 50;
 wherein the phosphate ester of the alkoxylated tertiary amine surfactant is of structure (IXa) or structure (IXb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms, R 2  and R 3  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms, the sum of each x and y group is independently an average value ranging from about 2 to about 60, and R 4  and R 5  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms;
 wherein the phosphate ester of alkoxylated etheramine surfactant is of structure (Xa) or structure (Xb): 
 
       
         
           
           
               
               
           
         
       
       wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2 , R 3  and R 4  are each independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 10; the sum of each x and y group is independently an average value ranging from about 2 to about 60; and R 5  and R 6  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms; and
 wherein the phosphate ester of alkoxylated alcohol surfactant is of structure (XIa) or (XIb): 
 
       
         
           
           
               
               
           
         
         wherein each R 1  is independently hydrocarbyl or substituted hydrocarbyl having from about 4 to about 22 carbon atoms; each R 2  is independently hydrocarbylene having 2, 3, or 4 carbon atoms; each m is independently an average number from about 1 to about 60; and R 3  and R 4  are each independently hydrogen, hydrocarbyl or substituted hydrocarbyl having from 1 to about 6 carbon atoms. 
       
     
     
         5 . The composition of  claim 1  wherein, for the amidoalkylamine surfactant of structure (I), R 1  is alkyl having an average of from about 4 carbon atoms to about 18 carbon atoms, and R 2  and R 3  are alkyl having from 1 to 4 carbon atoms, and R 4  is alkylene having from 1 to 4 carbon atoms. 
     
     
         6 . The composition of  claim 5  wherein R 1  is alkyl having an average of from about 5 carbon atoms to about 12 carbon atoms, R 2  and R 3  are methyl and R 4  is n-propylene. 
     
     
         7 . The composition of  claim 1  wherein the co-surfactant comprises the alkoxylated tertiary amine of structure (II), wherein R 1  is alkyl having from about 8 to about 18 carbon atoms, R 2  and R 3  are each independently ethylene, propylene or isopropylene, and the sum of x and y is an average value ranging from about 2 to about 22. 
     
     
         8 . The composition of  claim 7  wherein R 1  is alkyl having from about 12 to about 18 carbon atoms, R 2  and R 3  are ethylene, and the sum of x and y is an average value ranging from about 10 to about 20. 
     
     
         9 . The composition of  claim 1  wherein the co-surfactant comprises the alkoxylated quaternary amine of structure (III), wherein R 1  is alkyl having from about 8 to about 18 carbon atoms, R 2  and R 3  are each independently ethylene, propylene or isopropylene, R 4  is hydrocarbyl or substituted hydrocarbyl having from 1 to about 4 carbon atoms, and the sum of x and y is an average value ranging from about 2 to about 22. 
     
     
         10 . The composition of  claim 9  wherein R 1  is alkyl having from about 12 to about 18 carbon atoms, R 2  and R 3  are ethylene, R 4  is methyl, and the sum of x and y is an average value ranging from about 10 to about 20. 
     
     
         11 - 26 . (canceled) 
     
     
         27 . The composition of  claim 1  wherein
 the co-surfactant comprises the alkoxylated tertiary amine of structure (II), the alkoxylated quaternary amine of structure (III), or a combination thereof, and   the weight ratio of the amidoalkylamine surfactant of structure (I) in grams to total co-surfactant in grams is from about 5:1 to about 1:5.   
     
     
         28 . The composition of  claim 27  wherein the weight ratio of the amidoalkylamine surfactant of structure (I) in grams to total co-surfactant in grams is less than about 45:55. 
     
     
         29 - 36 . (canceled) 
     
     
         37 . The composition of  claim 1  wherein the glyphosate derivative is a glyphosate salt selected from the group consisting of potassium salt, monoammonium salt, diammonium salt, triammonium salt, sodium salt, monoethanolamine salt, isopropylamine salt, n-propylamine salt, ethylamine salt, dimethylamine salt, ethylenediamine salt, hexamethylenediamine salt, monosulfonium, disulfonium, trimethylsulfonium salt, and combinations thereof. 
     
     
         38 . The composition of  claim 37  wherein the glyphosate salt is selected from the group consisting of the diammonium salt, the potassium salt, the monoethanolamine salt, and combinations thereof. 
     
     
         39 . (canceled) 
     
     
         40 . (canceled) 
     
     
         41 . The composition of  claim 1  wherein the weight ratio of glyphosate in grams acid equivalent to total surfactant in grams is from about 2:1 to about 10:1. 
     
     
         42 . (canceled) 
     
     
         43 . (canceled) 
     
     
         44 . The composition of  claim 1  wherein the glyphosate concentration is greater than 420 grams acid equivalent per liter. 
     
     
         45 . The composition of  claim 44  wherein the glyphosate concentration is greater than 480 grams acid equivalent per liter. 
     
     
         46 . The composition of  claim 45  wherein the glyphosate concentration is greater than 540 grams acid equivalent per liter. 
     
     
         47 - 50 . (canceled) 
     
     
         51 . The composition of  claim 2  wherein, for the amidoalkylamine surfactant of structure (I), R 1  is alkyl having an average of from about 4 carbon atoms to about 18 carbon atoms, R 2  and R 3  are alkyl having from 1 to 4 carbon atoms, and R 4  is alkylene having from 1 to 4 carbon atoms. 
     
     
         52 . The composition of  claim 51  wherein R 1  is alkyl having an average of from about 5 carbon atoms to about 12 carbon atoms, R 2  and R 3  are methyl and R 4  is n-propylene. 
     
     
         53 . The composition of  claim 2  wherein the weight ratio of the amidoalkylamine surfactant of structure (I) in grams to total co-surfactant in grams is from about 5:1 to about 1:5. 
     
     
         54 . The composition of  claim 53  wherein the weight ratio of the amidoalkylamine surfactant of structure (I) in grams to total co-surfactant in grams is less than about 45:55. 
     
     
         55 . The composition of  claim 2  wherein the glyphosate derivative is a glyphosate salt selected from the group consisting of potassium salt, monoammonium salt, diammonium salt, triammonium salt, sodium salt, monoethanolamine salt, isopropylamine salt, n-propylamine salt, ethylamine salt, dimethylamine salt, ethylenediamine salt, hexamethylenediamine salt, monosulfonium, disulfonium, trimethylsulfonium salt, and combinations thereof. 
     
     
         56 . The composition of  claim 55  wherein the glyphosate salt is selected from the group consisting of the diammonium salt, the potassium salt, the monoethanolamine salt, and combinations thereof. 
     
     
         57 . The composition of  claim 2  wherein the weight ratio of glyphosate in grams acid equivalent to total surfactant in grams is from about 2:1 to about 10:1. 
     
     
         58 . The composition of  claim 2  wherein the composition is a liquid concentrate, and the glyphosate concentration is greater than 360 grams acid equivalent per liter. 
     
     
         59 . The composition of  claim 58  wherein the glyphosate concentration is greater than 420 grams acid equivalent per liter. 
     
     
         60 . The composition of  claim 59  wherein the glyphosate concentration is greater than 480 grams acid equivalent per liter. 
     
     
         61 . The composition of  claim 60  wherein the glyphosate concentration is greater than 540 grams acid equivalent per liter. 
     
     
         62 . An herbicidal method for killing or controlling unwanted plants, the method comprising forming an application mixture by diluting the composition of  claim 1  with water and applying the application mixture to the foliage of the unwanted plant or plants.