Process for purifying water-soluble highly branched polyethers

摘要

the present invention relates to a process for aufreinigen a polymer containing at least one rohlu00f6sung r hochverzweigten (dendritic) polyether and at least one organic solvent p l, whereby the polymer rohlu00f6sung r with at least one aqueous salt solution containing it d at least one kosmotropes salt is brought into contact with at least two phases of trainingsubsequently to be separated. optionally the desired hochverzweigten polyether p from one of the phases to be isolated.