Method of stabilizing aqueous cationic polymers

Details Method of stabilizing aqueous cationic polymers Method of stabilizing aqueous cationic polymers

C - Chemistry, Metallurgy

08

K

C08K 5/17 (2006.01) C08G 73/02 (2006.01) D21H 17/55 (2006.01) D21H 21/20 (2006.01)

Patent

CA 2695007

Cationic thermosetting resins and especially resins having azetidinium functional groups, such as polyamidoamine-epichlorohydrin resins, are stabilized against premature gelation by the addition of (1) a low molecular weight, non-aldehyde, non-ionic, water soluble organic stabilizing compound (preferably one that is reactive with the cationic moiety), preferably in combination with (2) a water soluble, inorganic complexing metal salt.

L'invention concerne des résines thermodurcissables cationiques et particulièrement des résines présentant des groupes fonctionnels azétidinium, tels que des résines de polyamidoamine-épichlorhydrine, qui sont stabilisées contre une gélification prématurée par l'addition de (1) un composé de stabilisation organique hydrosoluble non aldéhydique, non ionique, à faible poids moléculaire (de préférence un composé réactif au groupe cationique), de préférence en combinaison avec (2) un sel de métal complexant minéral et hydrosoluble.

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