Claim 1: Composition characterized in that it comprises microcapsules comprising a Core and a Coating of polyurea, wherein the core comprises pendimethalin and the coating comprises a polymerization product of a diisocyanate (c) and (d) a P tetrametilxilileno Oliamina with at least three Amine groups,And where the polymerization Product comprises less than 5% by weight of additional isocyanate monomers Polymerized form, depending on the weight of the tetrametihilileno diisocyanate. Claim 2: the composition according to claim 1, wherein the product of the polymerization of other monomers is essentially free of isocyanate in Polymerized form.Claim 3: the composition according to claim 1 or 2, wherein the Polyamine is a compound of the formula (1) wherein M is an integer from 1 to 8, and ru00b9 is H or Methyl. Claim 5: the composition according to any one of claims 1 to 4, wherein the tetrametilxilileno diisocyanate is a compound of the formula (2).Claim: the composition according to any one of claims 1 to 10, wherein the composition is an aqueous composition, Aqueous Phase which comprises a lignosulfonate.Claim 13: the composition according to any one of claims 1 to 12, wherein the core comprises less than 1% by weight of a non Water miscible Organic solvent. Claim 2: the composition according to any one of claims 1 to 12, wherein the core comprises less than 0.5% by weight of a non Water miscible Organic solvent.Claim 15: a method for preparing the composition as defined in any of claims 1 to 14, characterized in that it comprises the step of contacting Water, pendimethalin, diphenylmethane tetrametilxilileno and Polyamine.Claim 16: a method to control the growth of unwanted plants, wherein the composition as defined in any of claims 1 to 14 acts on the ground and / or unwanted plants and / or on Crop plants and / or their environment.
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