Aminoalkyl vinyl ethers comprising ethylenimine units, processes for their preparation and their use

A process for the preparation of an aminoalkyl vinyl ether comprising alkylenimine units, said vinyl ether having the formula

• H2C═CH—O—X—NH-[AI-]n-H (I),
• in which
• [AI-]n is a linear or branched oligoalkylenimine chain having n alkylenimine units,
• n is a number of at least 1 and
• X is a straight-chain or branched C2- to C6-alkylene group,
• or a salt of the monomers I with a mineral acids or an organic acid,
• or a quaternization product of the monomers I with an alkyl halide or a dialkyl sulfate, wherein at least one alkylenimine is subjected to an addition reaction with an amino-C2- to C6-alkyl vinyl ether, at least 1 mol of an alkylenimine being used per mole of the vinyl ether, and the adduct is neutralized with a mineral acid or an organic acid for the preparation of the salt and they are reacted with a C1- to C18-alkyl halide or dialkyl sulfate for the preparation of the quaternization product.