Coupling of modified cyclodextrins to fibers
AssigneeSCA Hygiene Products AB
InventorsArie Cornelis Besemer, Anne Mieke Yvonne Wilhelmina Verwilligen, Harm Jan Thiewes
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Abstract
Cyclodextrins and other ecapsulating oligosaccharides can be bound to fibrous and/or polysaccharidic carriers by ionic bonds. The ionic bonds can be produced by introducing cationic or anionic groups into the cyclodextrins, and where appropriate, by introducing oppositely charged groups in the carrier material. The products can be used for odor control in the fibrous material.
Claims10
A process for coupling a cyclic oligosaccharide to a polysaccharidic carrier comprising negatively charging the carrier by carboxyalkylation, sulphonation, oxidation or phosphorylation;
- positively charging the oligosaccharide;
- and coupling the cyclic oligosaccharide to the carrier;
- wherein the cyclic oligosaccharide is a cyclodextrin.
A process for coupling a cyclic oligosaccharide to a polysaccharidic carrier comprising positively charging the carrier by amino-alkylation, azido-alkylation, oxidation, or applying a cationic additive to the carrier;
- negatively charging the oligosaccharide;
- and coupling the cyclic oligosaccharide to the carrier;
- wherein the cyclic oligosaccharide is a cyclodextrin,
- wherein the cationic additive is poly(amide)amine-epichlorohydrin.
Dependencies are inferred from the claim text.