A composition comprising an Agrochemical active substance and a Copolymer, which comprises an n - and a Salt of vinilcarboxamida dialiidiaiquilamonio incorporated in the polymer.Furthermore, a method for preparing the composition; use of the composition for the dispersion of Agrochemical active substances, a method for controlling phytopathogenic fungi and / or the growth of unwanted plants and / or attack by insects or mites, unwanted and / or to regulate Growth To Plant, where the composition is made to act on the respective pestsIts environment or to protect Crop plants from the respective pests on the floor and / or unwanted plants and / or on Crop plants and / or its environment, and also on Seeds, comprising the composition.Claim 1: Composition, characterized in that it comprises an Agrochemical active substance and a Copolymer comprising at least 5% by weight of an n - vinilcarboxamida and at least 1% by weight of a Salt of dialildialquilamonio incorporated in the Polymer, with respect to the total amount The monomers copolymerized.Claim 8: the composition according to any one of claims 1 to 6, wherein the Salt of dialildialquilamonio corresponds to the formula (1) wherein R1 and R2 are independently Hydrogen or alkyl c1-4; R3 and R4 mean regardless of S I rent, hidroxialquilo carboxialquilo, carboxiamidoalquilo or alkoxyalkyl esters,Having 1 to 18 carbon Atoms; and y is an anion. Claim 9: the composition according to any one of claims 1 to 6, wherein the N is a vinilcarboxamida N - alkyl Vinyl - C1 - 18carboxamida and / or an n - Vinyl - N - (alkyl - C1 - 12) alkyl 18carboxamida C1 -.Una composición, que comprende una sustancia activa agroquímica y un copolímero, que comprende una N-vinilcarboxamida y una sal de dialiIdiaIquilamonio incorporadas en el polímero. Además, un método para preparar esta composición; uso de esta composición para la dispersión de sustancias activas agroquímicas un método para controlar hongos fitopatógenos y/o el crecimiento