Aldehyde-containing polymers as wet strength additives
AssigneeSCA Hygiene Products Zeist B.V.
InventorsJeffrey Wilson Thornton, Dorine Lisa Van Brussel-Verraest, Arie Besemer, Sussan Sandberg
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Abstract
The invention concerns the use of a water-soluble or water-dispersible polymer having a molecular weight of at least 800, containing at least 5 aldehyde groups per molecule and at least 1 carboxyl group per molecule, the ratio of aldehyde groups to carboxyl groups being higher than 0.75:1, as a wet strength additive. The invention also discloses novel cationic derivatives thereof.
Claims11
A wet strength composition comprising a polysaccharide derivative containing 0.10-2.95 aldehyde groups and 0.03-1.0 anionic groups per recurring unit, and comprising a polymer containing cationic groups.
Dependencies are inferred from the claim text.