Oxidized polymeric carbohydrates and products made thereof
AssigneeSCA Hygiene Products AB
InventorsThomas Jaschinski, Susanna Gunnars, Arie Cornelis Besemer, Petter Bragd
Life of this patent
Estimating the term…
Abstract
The present invention relates to a polysaccharide having functional groups, wherein said groups are aldehyde groups formed at positions C2 and/or C3 as well as at position C6 of the anhydroglucose units of the polysaccharide chain. Preferably the polysaccharide is a cellulosic fibrous material whose primary and secondary hydroxyl groups of the cellulose are oxidized into aldehyde groups at least in part by means of TEMPO oxidation and periodate oxidation. The invention also concerns a paper or nonwoven comprising the above polysaccharide. According to the invention a relative wet strength of more than 10% can be achieved.
Claims7
A paper or nonwoven polysaccharide-based material comprising functional groups, wherein said groups are aldehyde groups formed at positions C2 and/or C3 as well as at position C6 of the anhydroglucose units of the polysaccharide chain.
Dependencies are inferred from the claim text.