The Procter Gamble Company

The Procter & Gamble Company

Bruno Johannes Ehrnsperger

Mattias Schmidt

Ernesto Gabriel Bianchi

Donald Carroll Roe

Andrea Peri

Torsten Lindner

Ludwig Busam

Siegfried Link

Volker Maier

Sanaul Kabir Siddiquee

Uwe Jurgen Becker

Hans Adolf Jackels

Gabriele Stiehl

Thomas Tombuelt

Maike Thomann

Carsten Heinrich Kreuzer

Blanca Arizti

Gary Dean Lavon

Roland Engel

Christine Elisabeth Zipf

Rodrigo Rosati

Stephen Allen Goldman

Axel Meyer

Gerald A Young

Fred Naval Desai

Edward Joseph Urankar

Claus Peter Stoelzel

Michael Divo

Juliane Kamphus

Marc Jennewein

Holger Beruda

Peter Dziezok

Jeromy Thomas Raycheck

Cornelia Beate Martynus

Andrew James Sauer

Abhishek Prakash Surushe

Patrick Jay Allen

Harald Hermann Hundorf

Udo Friedel Schoenborn

Marion Lutsche

Marion Michnacs

Frank Neumann

Gary Dean LaVon

Gianfranco Palumbo

Renae Dianna Fossum

Arsen Arsenov Simonyan

Karl Patrick Ronn

Yiping Sun

Cornelia Sprengard-Eichel

Birgit Wirtz

Jacqueline Besinaiz Thomas

Oleg N Khomjakov

Simon S Litvin

Dimitris Ioannis Collias

Martin Ian James

Horst Blessing

Luke Robinson Magee

Aniruddha Chatterjee

Gary Wayne Gilbertson

Kathleen Marie Lawson

Richard W Lodge

Mark John Ciesko

Matthias Konrad Hippe

Christofer Fuchs

Heike Opper

Joerg Endres

Julien René Garcia

Egon Loeffler

Alessandra Massa

Manuel Laso

Mark James Kline

Frederick Michael Langdon

Thorsten Rinnert

Bruce Ernest Tepper

Mikhail K Kruchinin

Dana Paul Gruenbacher

Thomas Allen Desmarais

Jean Wevers

John Collins Dyer

Andrew Julian Wnuk

Gueltekin Erdem

Paul Amaat France

Anna Elizabeth Macura

Ling Tong

Arseni Valerevich Radomyselski

Aleksey Mikhailovich Pinyayev

Joseph Hung Lam

Jose Carlos Garcia-Garcia

Constance Lee Fisher

Alizha Victoria Smith

Tracey Elaine Beckman

Fred M Langdon

Walter Pieter Hendrik Laurentius Van Der Klugt

Mel Allende-Blanco

Paul Martin Lipic

Nancy A Haynes

Douglas Gregory Stevens

Thomas Tombuelt-Meyer

Sudhanshu Gupta

Andrea Lieselotte Link

Superabsorbent fiber (SAF) in a feed stream is converted into soluble polymers in an extensional flow device. The total energy used to degrade the SAF into soluble polymers is less than about 50 MJ/kg SAF.

Recycling of superabsorbent fibers with an extensional flow device

An absorbent core for absorbent articles such as diapers comprising a core wrap comprising a top side and a bottom side, an absorbent material between the top side and the bottom side of the core wrap, a first and second longitudinally-extending channel-forming areas disposed on opposite sides of the longitudinal axis and substantially free of absorbent material preferably through which the top side of the core wrap is preferably attached to the bottom side of the core wrap. The core has a central absorbent zone between the first and the second channel-forming areas and a first and second lateral absorbent zones disposed laterally outwardly. The basis weight of the absorbent material in the central absorbent zone is higher than the basis weight of the absorbent material in each of the lateral absorbent zones for at least a first transversal section (S). This relation is inverted along a second transversal section (S) of the core. The first and second sections have each a length in the longitudinal direction of at least 10 mm.

Absorbent core with profiled distribution of absorbent material

Superabsorbent fibers (SAF) in a feed stream is converted with UV irradiation into soluble polymers in a flow system. The UV total energy used to convert SAF into soluble polymers is less than about 50 MJ/kg SAF.

Recycling of superabsorbent fibers via UV irradiation in flow system

An absorbent article includes a liquid permeable topsheet, a liquid impermeable backsheet, an absorbent core being disposed between the topsheet and the backsheet, wherein the absorbent core includes an absorbent material disposed in an absorbent deposition area and enclosed in a core wrap. The core further includes a first swelling chamber, a second swelling chamber, and an external zone. The absorbent material comprises superabsorbent polymer. One or more permanent seals separate the first swelling chamber and the second swelling chamber from the external zone. The swelling chambers consist of absorbent material immobilized by water-responsive bonds, wherein the water-responsive bonds deteriorate upon exposure to water such that the absorbent material is flowable in the wet state; and the external zone comprises absorbent material that is immobilized by thermoplastic adhesive, such that the absorbent material is immobilized in the wet state.

Absorbent core having swelling chamber

An absorbent article includes a longitudinal axis extending in a longitudinal direction of the article, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between the topsheet and backsheet. The absorbent core includes a superabsorbent polymer. The article further includes an acquisition-distribution layer; and at least one channel positioned within a layer located between the topsheet and the backsheet, the at least one channel being substantially free of fibers and superabsorbent polymer. An indentation occurs in at least one of the topsheet and the backsheet that correspond to the at least one channels when the article is loaded with fluid.

Absorbent article with high absorbent material content

A method for degrading crosslinked superabsorbent fibers (SAF) into soluble polymers is disclosed. Degradation is achieved with an oxidative water-soluble salt comprising at least one cation and at least one anion.

Degradation of superabsorbent fibers via oxidative degradation

A disposable absorbent article may include a chassis that includes a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet; and a leg gasketing system. The leg gasketing system may include an inner cuff and an outer cuff; the inner cuff may include an inner cuff folded edge and an inner cuff material edge, and the outer cuff may include an outer cuff material edge such that the web of material is folded laterally outward to form the inner cuff folded edge, and the leg gasketing system further including a leg gasketing system pocket with an opening on an inboard longitudinal edge of the leg gasketing system pocket. The disposable absorbent article also includes at least one channel in the absorbent core.

Absorbent article with leg cuffs

Superabsorbent fibers (SAF) in a feed stream is converted into soluble polymers in an extensional flow device. The total energy used to degrade the SAF into soluble polymers is less than about 50 MJ/kg SAF.

An absorbent core for use in an absorbent article, the absorbent core extending in a transversal direction and a longitudinal direction. The absorbent core includes a fluid-permeable top layer, a bottom layer, and a central layer between the top layer and the bottom layer. The central layer may be a high loft fibrous nonwoven layer, in particular having a density of less than about 0.200 g/cc, measured at a pressure of 4.14 kPa. Superabsorbent polymer particles may be blended with the fibers of the central layer, except for one or more longitudinally-extending channels substantially free of superabsorbent polymer particles.

Absorbent core comprising a high loft central layer and channels

An absorbent article includes a longitudinal axis extending in a longitudinal direction of the article, a liquid permeable topsheet, a liquid impermeable backsheet, and an absorbent core disposed between the topsheet and backsheet. The absorbent core includes a combination of superabsorbent polymer and cellulose fibers. The article further includes an acquisition-distribution layer; and at least one channel positioned within a layer located between the topsheet and the backsheet, the at least one channel being substantially free of fibers and superabsorbent polymer. An indentation occurs in at least one of the topsheet and the backsheet that correspond to the at least one channels when the article is loaded with fluid.

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

The invention relates to a disposable absorbent pant comprising a central chassis and elasticized front and rear belt. The central chassis comprises an absorbent core with an absorbent layer. The absorbent layer comprises a continuous channel formed therein.

Absorbent pant having an absorbent core with continuous channel

An absorbent article includes a liquid permeable topsheet, a liquid impermeable backsheet, an absorbent core being disposed between the topsheet and the backsheet, wherein the absorbent core include san absorbent material disposed in an absorbent deposition area and enclosed in a core wrap. The core further includes a swelling chamber disposed in between two external zones. The absorbent material comprises superabsorbent polymer. One or more permanent seals separate the chamber from each of the two external zones. The swelling chamber consists of absorbent material immobilized by water-responsive bonds, wherein said water-responsive bonds deteriorate upon exposure to water such that the absorbent material is flowable in the wet state; and the two external zones comprise absorbent material that is immobilized by thermoplastic adhesive, such that the absorbent material is immobilized in the wet state.

An absorbent article, preferably a disposable absorbent article such as a diaper, is disclosed having an absorbent core which imparts increased wearing comfort to the article and makes it thin and dry. The absorbent core useful for an absorbent article comprises a substrate layer, a discontinuous layer of absorbent material, and a layer of thermoplastic material. A second surface of the discontinuous layer of absorbent material is in at least partial contact with a first surface of the substrate layer. Portions of a second surface of the layer of thermoplastic material are in direct contact with the first surface of the substrate layer and portions of said second surface of the layer of thermoplastic material are in direct contact with a first surface of the discontinuous layer of absorbent material. A process for providing a storage layer for an absorbent core useful in an absorbent article is further disclosed.

Thin and dry diaper

A disposable absorbent article may include a chassis that includes a topsheet, a backsheet, and an absorbent core disposed between the topsheet and the backsheet; and a leg gasketing system. The leg gasketing system may include an inner cuff and an outer cuff; the inner cuff may include an inner cuff folded edge and an inner cuff material edge and the outer cuff may include an outer cuff folded edge and an outer cuff material edge such that the web of material is folded laterally inward to form the outer cuff folded edge and folded laterally outward to form the inner cuff folded edge, and the leg gasketing system further including a leg gasketing system pocket with an opening on an inboard longitudinal edge of the leg gasketing system pocket. The disposable absorbent article also includes at least one channel in the absorbent core.

Growing community of inventors

Bad Soden, Germany

Bruno Johannes Ehrnsperger