High molecular weight, water-soluble, cross-linked cationic polymers are prepared by reacting amine-functionalized cationic base polymers, in which the monomer units of the base polymer contain from about 0.05 to about 5.0% amine functionalized monomer units and from about 95 to about 99.95% additional monomer units, including cationic monomer units and optional non-cationic monomer units, with an amount of a cross-linking agent, reactive with the amines of the base polymer, providing between about 0.02 to about 3.0 equivalents of cross-linking agent reactive groups per each mole of amine. The polymers are useful as coagulants and as coatings.

High molecular weight, водорастворимые, cross-linked cationic полимеры подготовлено путем реагировать полимеры amina-functionalized cationic низкопробные, в которых блоки мономера низкопробного полимера содержат от около 0.05 до около 5.0%, котор амин functionalized блоки мономера и от около 95 до около 99.95% дополнительных блока мономера, включая cationic блоки мономера и опционные нон-non-cationic блоки мономера, с количеством вещества cross-linking, реактивным при амины низкопробного полимера, между около 0.02 около 3.0 эквивалента групп вещества cross-linking реактивных в каждую моль амина. Полимеры полезны как коагулянты и как покрытия.

 
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