Herbicidal compositions including drift retardant agents and methods of making the same
AssigneeMonsanto Technology LLC
InventorsJingsi Gao, Alison Macinnes, David A. Morgenstern
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Abstract
Herbicidal compositions for reducing off-site movement or drift of herbicides are described. The herbicidal compositions can include a drift retardant agent (DRA) along with at least one auxin herbicide and an emulsifying agent, such as an alkylpolysaccharide, a phosphate ester, an alkoxylated castor oil, or a combination thereof. Methods of making such composition are also described.
Claims20
A herbicidal composition concentrate comprising:
- (a) at least one auxin herbicide;
- (b) at least one drift retardant agent comprising:
- soybean oil or a methyl ester of soybean oil in an amount of about 80% to about 95% by weight of the drift retardant agent;
- a compound according of Formula I:
- wherein n is 50-250 in an amount of about 0.25% to about 10% by weight of the drift retardant agent;
- and
- a compound of Formula II:
- wherein i+j+k=10 to 50 and r+s+t=3 to 12 in an amount of about 3% to about 50% by weight of the drift retardant agent;
- and
- (c) an emulsifying agent selected from the group consisting of a phosphate ester, an alkylpolysaccharide, an alkoxylated castor oil, and a combination thereof.
A method of making an herbicidal composition concentrate, the method comprising:
- admixing at least one auxin herbicide with at least one drift retardant agent and an emulsifying agent,
- wherein the at least one drift retardant agent comprises:
- soybean oil or a methyl ester of soybean oil in an amount of about 80% to about 95% by weight of the drift retardant agent;
- a compound according of Formula I:
- wherein n is 50-250 in an amount of about 0.25% to about 10% by weight of the drift retardant agent;
- and
- a compound of Formula II:
- wherein i+j+k=10 to 50 and r+s+t=3 to 12 in an amount of about 3% to about 50% by weight of the drift retardant agent;
- and
- wherein the emulsifying agent is selected from the group consisting of a phosphate ester, an alkylpolysaccharide, an alkoxylated castor oil, and a combination thereof to form the herbicidal composition concentrate.
A drift retardant agent composition for use in the preparation of a herbicidal application mixture, the drift retardant agent composition comprising:
- (a) at least one drift retardant agent comprising:
- soybean oil or a methyl ester of soybean oil;
- poly (oxy-1,2-ethanediyl), α-[(9Z)-1-oxo-9-octadecen-1-yl]-ω-hydroxy-;
- and
- octadecanoic acid, 12-hydroxy-, homopolymer, ester with α, α′, α″-1,2,3-propanetriyltris [ω-hydroxypoly (oxy-1,2-ethanediyl)];
- and
- (b) an emulsifying agent selected from the group consisting of a phosphate ester, alkylpolysaccharide, an alkoxylated castor oil, and a combination thereof.
Dependencies are inferred from the claim text.