Temporary wet strength polymers from oxidized reaction...

D - Textiles – Paper – 21 – H

Patent

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D21H 21/20 (2006.01) C07H 13/04 (2006.01) C08B 31/04 (2006.01) D21H 17/24 (2006.01) D21H 17/28 (2006.01) D21H 17/29 (2006.01)

Patent

CA 2250176

A temporary wet strength polymer and compositions for paper products, e.g. toilet tissue, is disclosed. The temporary wet strength polymer is the oxidation product of an esterified polyhydroxy polymer, more preferably of an esterified polysaccharide. The esterified polymer compound is formed by reacting the polyhydroxy polymer with a 1,2- disubstituted alkene compound that has at least one carboxylic acid group. The temporary wet strength polymer provides paper products having an initial wet strength that enables use of the product in the moistened condition, along with a suitable wet strength decay rate.

Polymères résistant temporairement à l'état humide et compositions destinées à des produits du type papier comme par exemple du papier hygiénique. Le polymère résistant temporairement à l'état humide est le produit d'oxydation d'un polymère polyhydroxy estérifié, de façon idéale d'un polysaccharide estérifié. On forme le composé de polymère estérifié par réaction du polymère polyhydroxy avec un composé d'alcène à disubstitution en position 1,2 qui comporte au moins un groupe acide carboxylique. Le polymère résistant temporairement à l'état humide permet de produire des produits papier dont la résistance initiale à l'état humide permet d'utiliser le produit à l'état mouillé avec une vitesse appropriée de la perte de la résistance à l'état humide.

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