Hydrogel capable of absorbing blood and/or body fluids
AssigneeBASF SE
InventorsMartin Beck, Volker Frenz, Anna Kowalski, Elisabeth Selzer, Ernst Bauer, Harald Keller, Bernhard Steinmetz
Life of this patent
Estimating the term…
Abstract
A hydrogel having a floatability where from 40% to 90% of a solution and/or suspension to be thickened are thickened starting from the surface of the liquid and the rest of the solution and/or suspension to be thickened is thickened starting from the bottom of the container, a process for preparing the hydrogel and also its use for absorbing blood and/or body fluids, especially in hygiene articles, or for thickening aqueous solutions and/or suspensions, especially for thickening medical wastes.
Claims23
A hydrogel having a floatability wherein from 40% to 90% of a solution or suspension to be thickened is thickened starting from the surface of the liquid and the rest of the solution or suspension to be thickened is thickened starting from the bottom of a container for the solution or suspension.
A process for preparing a hydrogel comprising aftertreating a dried hydrogel with a hydrophobic compound, and optionally a hydrophilic compound.
(canceled)
(canceled)
(canceled)
(canceled)
Dependencies are inferred from the claim text.