Water-soluble condensation products of compounds containing...

C - Chemistry – Metallurgy – 08 – G

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C08G 73/02 (2006.01) D21H 17/56 (2006.01) D21H 21/10 (2006.01)

Patent

CA 2145667

There are described water- soluble condensation products of amino-containing com- pounds and crosslinkers, obtainable by reacting (a) polyalkylenepolyamines, polyamidoamines, ethylene- imine-grafted polyamidoamines, polyetheramines and mixtures thereof, with (b) monethylenically unsaturated carboxylic acids, salts, esters, amides or nitriles of monoethylen- ically unsaturated carboxylic acids, chlorocarbo- xylic acids and/or glycidyl compounds such as glycidic acid, glycidamide or glycidyl esters, and (c) at least bifunctional crosslinkers having a halo- hydrin, glycidyl, aziridine or isocyanate unit or a halogen atom as functional group, to form water-soluble condensation products having a viscosity of at least 100 mPas in a 20% strength by weight aqueous solution at 20°C, processes for preparing the water-soluble condensation products by reacting the abovementioned compounds of groups (a), (b) and (c), and the use of the condensation products as drainage, floccu- lation and retention aids in papermaking.

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