The Procter Gamble Company

European Central Bank

Marion Lutsche

Andrea Peri

Bruno Johannes Ehrnsperger

Peter Dziezok

Aniruddha Chatterjee

Juliane Kamphus

Marc Jennewein

Maike Thomann

Andreas Flohr

Yoshiro Mitsukami

Taku Fujimoto

Erina Minami

Kazuyuki Oshima

Gabriela Schaefer

Julien Bras

Alain Dufresne

Bruno Johannes Ehrnsprerger

Giuseppe Mosele

Johanna Desmaisons

Gilles Roberty

An absorbent core, for use in an absorbent article, including a core wrap enclosing an absorbent material and including superabsorbent polymer particles. The core wrap includes a top side and a bottom side, and the absorbent core includes one or more area(s) substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, so that when the absorbent material swells the core wrap forms one or more channel(s) along the area(s) substantially free of absorbent material. The superabsorbent polymer particles have a time to reach an uptake of 20 g/g (T20) of less than 240 s as measured according to the K(t) test method.

Absorbent cores having material free areas

An absorbent core (), for use in an absorbent article, comprising a core wrap (') enclosing an absorbent material () comprising superabsorbent polymer particles. The core wrap comprises a top side () and a bottom side (&#x2032;), and the absorbent core comprises one or more area(s) () substantially free of absorbent material through which the top side of the core wrap is attached to the bottom side of the core wrap, so that when the absorbent material swells the core wrap forms one or more channel(s) (&#x2032;) along the area(s) () substantially free of absorbent material. The superabsorbent polymer particles have a time to reach an uptake of 20 g/g (T20) of less than 240 s as measured according to the K(t) test method.

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

Absorbent articles with improved absorption properties

Absorbing articles comprises water absorbing resin including a water-soluble unsaturated monomer, having a dissociable group, as a main component in a repeating unit of a main chain and an internal cross-linked structure, in which a cross-linked structure index represented by the formula [Cross-linked structure index=(Equilibrium swelling capacity with respect to 0.9% by weight of brine)/(Weight average molecular weight after hydrolysis treatment)&#xd7;1,000,000] is 14 or more, a weight average molecular weight after hydrolysis treatment is 220,000 or less, and a molecular weight distribution after hydrolysis treatment is 3.40 or less, and a method for producing the same.

Absorbing articles comprising water absorbing resin and method for producing the same

A process for making a material for acquisition of liquids comprising individualized, crosslinked cellulosic fibers having an effective amount of a polymeric acid crosslinking agent reacted with the fibers in intra-fiber crosslink ester bond form. A process for making disposable absorbent articles, such as diapers, containing this material.

Process for making material for acquisition of liquids and disposable absorbent article comprising the material

The present invention relates to a material for acquisition of liquids comprising individualized, crosslinked cellulosic fibers having an effective amount of a polymeric acid crosslinking agent reacted with the fibers in intra-fiber crosslink ester bond form. The material further comprises at least one basic substance, selected from basic polymers. The invention also relates to disposable absorbent articles, such as diapers, containing this material. The material can be used in a method of reducing the electrolyte concentration of aqueous mediums containing electrolytes, such as urine.

Material for acquisition of liquids and disposable absorbent article comprising the material

Growing community of inventors

Schwalbach, Germany

Marion Lutsche