Temporary wet strength additives

D - Textiles – Paper – 21 – H

Patent

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Details

D21H 21/20 (2006.01) C08F 246/00 (2006.01) D21H 17/33 (2006.01) D21H 21/22 (2006.01)

Patent

CA 2542772

Temporary wet strength additives, more particularly, temporary wet strength additives comprising a polymer backbone, wherein the polymer backbone comprises a co-crosslinking monomeric unit, preferably a reversible co- crosslinking monomeric unit, especially in the presence of water, a homo- crosslinking monomeric units and a cationic monomeric unit, fibrous structures comprising such temporary wet strength additives, sanitary tissue products comprising such fibrous structures and processes for making such fibrous structures and/or such sanitary tissue product. Such fibrous structures and sanitary tissue products exhibit high initial wet tensile strength and improved flushability and/or reduced-clogging properties.

L'invention concerne des additifs de résistance temporaire à l'état humide, et plus précisément des additifs de résistance temporaire à l'état humide qui renferment un squelette polymère, lequel comprend une unité monomère de réticulation, de préférence réversible, notamment en présence d'eau, ainsi qu'une unité monomère d'homoréticulation et une unité monomère cationique. L'invention concerne également des structures fibreuses renfermant ces additifs à action temporaire, des produits de tissu sanitaire incorporant les structures en question, et des procédés d'élaboration pour les structures et/ou les produits en question. Ces structures et produits ont une résistance initiale à la traction à l'état humide élevée et un potentiel de jetabilité dans les toilettes amélioré et/ou d'engorgement réduit.

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