Method for agglomerating dispersed rubber

A process for the agglomeration of at least one rubber (A), dispersed in an aqueous phase, by the addition of a dispersion of at least one agglomerating polymer (B) in aqueous phase, wherein the agglomerating polymer (B) used is a copolymer of at least one C1-C12-alkyl acrylate or C1-C12-alkyl methacrylate or a mixture thereof and at least one acrylamide or maleamide or a mixture thereof, which copolymer is substantially free of acid groups, and the agglomeration is carried out in the presence of at least one basic electrolyte comprising an organic or inorganic hydroxide.