High-performance strength resins in papermaking industries

Details High-performance strength resins in papermaking industries High-performance strength resins in papermaking industries

D - Textiles, Paper

21

H

D21H 17/37 (2006.01) C08K 5/00 (2006.01)

Patent

CA 2570146

A composition comprising a functionalized water-soluble, cationic, thermosetting, cellulose reactive polymer with a doubly structured backbone that is the reaciton product of: (a) a copolymerized (i) acrylamide component, (ii) cationic co-monomer component and (iii) at least one multifunctional crosslinking monomer component; and (b) a cellulose reactive agent component; such that the acrylamide component, the cationic co-monomer component, the multifunctional crosslinking monomer component, and the cellulose reactive agent component are in an amount sufficient amount to produce a polymer that imparts strength to a fibrous substrate when the polymer is added to paper stock during a papermaking process. The invention also relates to methods for making and using such a composition.

L~invention porte sur une composition comprenant un polymère réactif à la cellulose, thermodurcissable, cationique, soluble dans l~eau, fonctionnalisé avec une ossature à double structure constituant le produit de réaction des éléments suivants : (a) un composant (i) acrylamide copolymérisé, (ii) un composant comonomère cationique et (iii) au moins un composant monomère de réticulation multifonctionnel; et (b) un composant d~agent réactif à la cellulose ; de sorte que le composant acrylamide, le composant comonomère cationique, le composant monomère de réticulation multifonctionnel, et le composant d~agent réactif à la cellulose sont en quantité suffisante pour produire un polymère conférant une certaine résistance à un substrat fibreux lorsque l~on ajoute le polymère à un papier raffiné pendant un processus de fabrication de papier. L~invention porte également sur des procédés de fabrication et d'utilisation d'une telle composition.

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