Repulpable wet strength resins for paper and paperboard

Details Repulpable wet strength resins for paper and paperboard Repulpable wet strength resins for paper and paperboard

C - Chemistry, Metallurgy

08

G

C08G 69/28 (2006.01) C08G 69/50 (2006.01) C08G 73/02 (2006.01) D21H 17/55 (2006.01) D21H 21/20 (2006.01)

Patent

CA 2199717

A composition of matter (resin) useful for imparting wet strength to paper products is prepared from a polyamine, a polycarboxylic acid or ester, a dialdehyde and epichlorohydrin. Wet strengthened paper products made using the resin are more easily repulped than paper products made with conventional wet strength agents.

On décrit une composition d'un matériau (une résine) qui confère une résistance à l'état humide à des produits à base de papier. On la prépare avec une polyamine, un acide ou un ester polycarboxylique, un dialdéhyde et une épichlorohydrine. Des produits à base de papier résistants à l'état humide fabriqués avec cette résine, sont plus faciles à refondre que ceux fabriqués avec des agents conventionnels de résistance à l'état humide.

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