Process of repulping wet strength paper

Details Process of repulping wet strength paper Process of repulping wet strength paper

C - Chemistry, Metallurgy

08

G

C08G 73/02 (2006.01) D21C 5/02 (2006.01) D21H 11/14 (2006.01) D21H 17/55 (2006.01) D21H 21/20 (2006.01)

Patent

CA 2315813

Process for repulping paper comprising providing paper comprising thermosetting resin which is the reaction product of epihalohydrin and polyamide made from polyalkylene polyamine, succinic acid and optionally another dicarboxylic acid and repulping the paper to obtain recycled pulp fibers.

L'invention concerne un procédé de désintégration de papier, le procédé consistant à prendre un papier comprenant une résine thermodurcissable constituant le produit de réaction d'une épihalohydrine et d'un polyamide fabriqué à partir d'une polyalkylène polyamine, un acide succinique et éventuellement un autre acide dicarboxylique et à désintégrer le papier pour obtenir des fibres de pâte recyclée.

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