Functionalization of paper components

D - Textiles – Paper – 21 – H

Patent

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D21H 17/20 (2006.01)

Patent

CA 2641309

Compositions and methods of producing paper-based materials are disclosed. In general, the techniques utilize an amine-containing polymer, such as chitosan, to fiinctionalize one or more components of a mixture used to form materials such as paper-based materials. Such components can include the fibers of a pulp and/or filler particles. In one instance, either the pulp or the filler particles are functionalized, but not both. Such functionalization can improve the qualities of a paper-based material relative to when such functionalization is not utilized. Techniques and compositions are also described to further improve the qualities of a paper material by utilizing a complementary polymer which can couple with the amine-containing polymer.

La présente invention concerne des compositions et des procédés de production de matériaux à base de papier. En général, les techniques utilisent un polymère contenant une amine, tel que le chitosane, afin de fonctionnaliser un ou plusieurs composants d'un mélange utilisé pour former des matériaux tels que les matériaux à base de papier. De tels composants peuvent comprendre les fibres d'une pâte et/ou des particules de charge. Dans un exemple, la pâte ou les particules de charge sont fonctionnalisées mais pas les deux. Une telle fonctionnalisation peut améliorer les qualités d'un matériau à base de papier par comparaison à lorsque l'on n'utilise pas une telle fonctionnalisation. La présente invention concerne également des techniques et des compositions pour améliorer davantage les qualités d'un matériau à base de papier en utilisant un polymère complémentaire qui peut être couplé au polymère contenant une amine.

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