Nitrogen containing surfactants for agricultural use

Abstract

The present invention comprises formulations for agricultural use comprising a surfactant and pesticide. The surfactants comprise nitrogen containing surfactants with N+—CH2COO−, N+—CH2COOCH3, N—CH2COO−M+, N—CH2CH2COO−M+, and/or amine oxide functionalities which enhance the pesticide activity. The pesticides include herbicides, fungicides and insecticides.

1 . A method of enhancing the efficacy of agricultural formulations comprising at least one agricultural active, said method comprising adding to said formulation a nitrogen containing surfactant having the following general structure: 
       
         
           
           
               
               
           
         
       
       where R is C6-C22 linear or branched, saturated or non-saturated hydrocarbon group; A=C1-C3 linear or branched alkylene; m=0-10; B=C2-C6 alkylene; p=1-5; r=0-1; t=0-1; R 1  is nothing, hydrogen or CH 3  and the molecule has a counter ion M +  for each instance of R1 being nothing; M +  is Na, K, Li, NH 4 , monoethanolamine, diethanolamine, triethanolamine, isopropylamine, dimethylamine, or dimethylamidopropylamine (DMAPA); and the whole molecule has a chloride as the counter ion for every carboxymethyl group; and X=Y=Z=methyl. 
     
     
         2 . The method of  claim 1  wherein m is >0. 
     
     
         3 . The method of  claim 1  wherein p=1 and B is C3 alkylene. 
     
     
         4 . The method of  claim 1  wherein said agricultural active comprises glyphosate, 2,4-D, dicamba, glufosinate, atrazine, or a mixture thereof. 
     
     
         5 . The method of  claim 1  wherein said agricultural formulation is a herbicide, fungicide, or insecticide formulation. 
     
     
         6 . The method of  claim 1  wherein said surfactant is the only surfactant when used in the agricultural formulations. 
     
     
         7 . The method of  claim 1  wherein said surfactant is used in agricultural formulations together with another surfactant comprising an alkyl dimethyl amidopropylamine wherein the alkyl group is selected from one or more of C5 to C12. 
     
     
         8 . The method of  claim 1  wherein the nitrogen containing surfactant is a sodium salt of cocodiamine trimethyl betaine. 
     
     
         9 . The method of  claim 1  wherein the nitrogen containing surfactant is a sodium salt of tallow diamine trimethyl di-betaine. 
     
     
         10 . The method of  claim 1  wherein the nitrogen containing surfactant is a sodium salt of cocodiamine trimethyl monobetaine, cocodiamine trimethyl dibetaine, and combinations thereof. 
     
     
         11 . The method of  claim 1  wherein the nitrogen containing surfactant is a sodium salt of tallow diamine trimethyl monobetaine, tallow diamine trimethyl dibetaine, and combinations thereof.