Glyphosate formulations

Details Glyphosate formulations Glyphosate formulations

A - Human Necessities

01

N

71/8.9

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

Patent

CA 1324727

IMPROVED GLYPHOSATE FORMULATIONS Abstract Concentrates containing glyphosate herbicide which on dilution give spray solutions having higher herbicidal unit activity than prior art solutions comprise: (a) solubilised glyphosate equivalent to at least 40 grams per litre of glyphosate acid; and (b) a surfactant which is (i) an amine having the formula Image where R represents a straight- or branched-chain alkyl or alkenyl group having from about 8 to about 22 carbon atoms, A represents an alkylene group, for example an ethylene or propylene group, and n and n' are integers such that n + n' has a value of from 1 to about 12, (ii) a mixture of such amines having different groups R, the average number of carbon atoms in the groups R being from about 8 to about 22, or (iii) a mixture of such amines having different values of n and n', n and n' being integers such that in individual amines n + n' can have a value from 0 to about 15, but in the mixture the average of the sum of n + n' is from 1 to about 12, R having a single value or an average value as in a mixture (ii); and wherein the weight ratio of (a) (expressed as glyphosate acid equivalent) to (b) is from about 1:1.75 to about 6:1.

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