Superabsorbents, preparation thereof and use thereof

Details Superabsorbents, preparation thereof and use thereof Superabsorbents, preparation thereof and use thereof

C - Chemistry, Metallurgy

08

B

C08B 37/00 (2006.01) A61K 47/36 (2006.01) A61K 47/38 (2006.01) A61L 15/60 (2006.01) C08B 15/00 (2006.01) C08B 31/00 (2006.01) C08J 3/24 (2006.01)

Patent

CA 2448140

The invention describes superabsorbents composed of surface-postcrosslinked polycarboxypolysaccharides having excellent age-stable absorption properties, even under load, high attrition resistance and bio-degradability and their use for absorbing water, aqueous or serous fluids and also blood. Also disclosed is a method of making which is impervious to changes in raw material quality and which provides consistent product quality.

L'invention concerne des superabsorbants constitués de polycarboxypolysaccharides post-réticulés au niveau de leur surface. Ces superabsorbants présentent d'excellentes propriétés absorbantes qui sont stables vis-à-vis du vieillissement, même sous pression, une grande stabilité à l'abrasion et une bonne biodégradabilité. L'invention concerne également leur utilisation pour absorber de l'eau, des fluides aqueux ou séreux et du sang. L'invention concerne en outre un procédé de production de ces superabsorbants qui est insensible aux variations de qualité des matières premières et permet d'obtenir une qualité de produit constante.

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