The Procter Gamble Company

Marion Michnacs

Bruno Johannes Ehrnsperger

Andrea Peri

Marc Jennewein

Maike Thomann

Carsten Luckert

Carsten Zetzl

Bruno Johannes Ehmsperger

An absorbent article such as disposable diaper, training pant, and adult incontinence undergarment comprising superabsorbent polymer particles able to absorb and contain body exudates having improved absorption properties and, therefore, reduce leakage, especially at the first gush, i.e. when the article starts to be wetted.

Absorbent article having improved absorption properties

A method for determining the time dependent effective permeability and the uptake kinetics of hydrogel-forming superabsorbent polymer particles under pressure.

Method for determining properties of superabsorbent polymer particles and of absorbent structures containing such particles

The present invention relates to absorbent cores comprising recycled superabsorbent polymer particles which have previously been immobilized by a solidified thermoplastic composition. The superabsorbent polymer particles can be separated from the solidified thermoplastic composition by using a supercritical fluid such as carbon dioxide, propane or mixtures thereof.

Recycled superabsorbent polymer particles

A method for re-mobilizing superabsorbent polymer particles which have previously been immobilized by a solidified thermoplastic composition comprising at least 30 weight-% of a thermoplastic polymer. The superabsorbent polymer particles are separated from the solidified thermoplastic composition by using a supercritical fluid comprising carbon dioxide, propane, or mixtures thereof. Separation may be further improved by the use of one or more co-solvents.

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Schwalbach, Germany

Marion Michnacs