| 摘要 |
<p>A zwitterionic polyamine comprising a crosslinked polyamine backbone having 2 to 12 tertiary or quaternary amino nitrogen atoms and a weight average molecular weight of from 150 to 1,500 wherein the crosslinked polyamine backbone is obtained by reacting (i) an aliphatic or araliphatic monoamine or a polyamine containing 2 to 5 primary, secondary or tertiary nitrogen groups with (ii) a crosslinker selected from the group consisting of epihalohydrins, polyglycidyl ethers with 2 to 4 glycidyl groups, polyhalohydrins with 2 to 4 halohydrine groups, dicarboxylic acids, their esters chlorides, amides or anhydrides, diisocyanates, urea and melamine, where at least one tertiary amine and group of the crosslinked polyamine backbone contains at least two groups having formula (I) or (II) wherein A is an alkylene oxide unit or tetrahydrofuran unit, n is a number of from 1 to 50 and X is an anionic group, or contains one group of formula (I) or (II) and one group selected from radicals consisting of (a), (b), C1- to C22-alkyl and C7- to C22-aralkyl, the meaning of A and n is the same as in formula (I) or (II) and a process for the production of said zwitterionic polyamines. The zwitterionic polyamines are used as additives in detergents.</p> |
