Glyphosate formulations containing etheramine surfactants

Abstract

Herbicidal compositions are provided comprising glyphosate or a salt thereof and an etheramine surfactant having the representative chemical structure (a), wherein R1 is a straight or branched chain C6 to about C22 alkyl, aryl or alkylaryl group, m is an average number from 1 to about 10, R2 in each of the m (O-R2) groups is independently C1-C4 alkylene, R3 groups are independently C1-C4 alkylene, and x and y are average numbers such that x+y is in the range from 2 to about 60; or (b), wherein R1 is a straight or branched chain C6 to about C22 alkyl, aryl or alkylaryl group, m is an average number from 1 to about 10, R2 in each of the m (O-R2) groups is independently C1-C4 alkylene, R3 groups are independently C1-C4 alkylene, R4 is C1-C4 alkyl, x and y are average numbers such that x+y is in the range from 0 to about 60, and A<-> is an agriculturally acceptable anion; or (c), wherein R1 is a straight or branched chain C6 to about C22 alkyl, aryl or alkylaryl group, m is an average number from 1 to about 10, R2 in each of the m (O-R2) groups is independently C1-C4 alkylene, R3 groups are independently C1-C4 alkylene, and x and y are average numbers such that x+y is in the range from 2 to about 60.

Description

field of invention [0001] The present invention provides novel agriculturally acceptable formulations of the herbicide N-phosphoromethylglycine (glyphosate) including tertiary or quaternary ether amine or ether amine oxide surfactants. Background of the invention [0002] Glyphosate is a herbicide known for its high efficacy and commercial importance used to kill a variety of harmful plants present, including agricultural weeds. Glyphosate is usually sprayed on the leaves of annual and perennial grasses and broad-leaved plants as a processed product dissolved in water, absorbed into the leaves after a period of time, and then transferred to the whole plant. [0003] Typically, glyphosate is processed as a water-soluble salt in commercial compositions. Salts in commercial use include ammonium salts, alkylamine salts such as isopropylamine salts, alkali metal salts such as sodium salts, and trimethylsulfonium salts. However, acid glyphosate formulations are also used. Typic...

AI Technical Summary

Problems solved by technology

[0011] Another disadvantage of prior art ethoxylated tertiary amine surfactants is that they tend to form hard gels when water is added to them, which makes cleaning of containers or pipes difficult, thereby increasing the Complexity and expense of preparing formulations containing such surfactants

However, it is not stated that the ethoxylated tertiary ether amines included in the brochure are superior to ethoxylated tertiary alkylamines as agricultural adjuvants, nor is there any ethoxylated tertiary ether amines suitable for the preparation of concentrated glyphosate compositions. teach

Images