Low foaming formulation of glyphosate

Details Low foaming formulation of glyphosate Low foaming formulation of glyphosate

A - Human Necessities

01

N

A01N 25/30 (2006.01) A01N 57/20 (2006.01)

Patent

CA 2480850

A low-foaming herbicidal composition comprises glyphosate and a poly(alkylene oxide) alkanol having the formula R1R2CH-R3-(OR4)n-OH (I) wherein R1 and R2 are methyl or ethyl, R3 is a straight chain alkylene group containing from 5 to 12 carbon atoms, R4 is an alkylene group containing 2 or 3 carbon atoms and n is from 4 to 20. Especially preferred is ethoxylated, propoxylated or mixed alkoxylated/propoxylated iso-tridecyl alcohol wherein the degree of alkoxylation is from 6 to 14, for example iso-tridecyl alcohol having 8 polyethylene oxide units. Preferred compositions additionally contain an alkylglycoside.

L'invention concerne une composition herbicide faiblement moussante comprenant du glyphosate et un poly(alkylène oxyde) alcanol représenté par la formule R¿1?R¿2?CH-R¿3?-(OR¿4?)¿n?-OH (I), dans laquelle R¿1? et R¿2? représentent le méthyle ou l'éthyle, R¿3? représente un groupe alkylène à chaîne linéaire contenant de 5 à 12 atomes de carbone, R¿4? représente un groupe alkylène contenant 2 ou 3 atomes de carbone et n représente un nombre compris entre 4 et 20. Les composants préférés sont l'alcool iso-tridécylique éthoxylé, propoxylé ou mixte alcoxylé/propoxylé, le degré d'alcoxylation étant compris entre 6 et 14, comme par exemple un alcool iso-tridécylique comprenant 8 unités polyéthylène oxyde. Les compositions préférées contiennent en outre un alkylglycoside.

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