The Procter Gamble Company

Metriopharm Ag

Byk-chemie Gmbh

Basf Se Corporation

Henkel Ag & Company, Kgaa

Bayer Materialscience Ag

Josef Breu

Wolfgang Brysch

Thomas Martin

Arsen Arsenov Simonyan

Juliane Kamphus

Jörg Von Wegerer

Beate Ludescher

Hussein Kalo

Matthias Daab

Michael Niedermaier

Torsten Lindner

Axel Meyer

Hans-Georg Kinzelmann

Ligang Zhao

Konrad Roschmann

Ines Pietsch

Juliane Fleissner

Steven Ray Merrigan

Arno Nennemann

Hanns Misiak

Astrid Kaiser

Andreas Edenharter

Lina Mayr

Wolfgang Milius

Gerrit Maass

Manuela Stirner

Michael Moeller

Gary A Deeter

Kristina Georgieva

Maxwell Joseph Wingert

Meaghan Clark McGuire

Christine Tonhauser

Sonja Amschler

Daniela Neitzke

David Kosel

Russell Kenneth Feller

Christina Huebner

Matthias Stoeter

Patrick Feicht

Hubert Schiessling

Stefan Bahnmüller

Jorg Von Wegerer

Meaghan Mcguire

Michael Möller

The invention relates to a method for preparing an at least partially exfoliated clay. The present invention further relates to an at least partially exfoliated clay obtainable by such a method and to a suspension comprising such a clay, as well to the use of such an at least partially exfoliated clay and of a suspension comprising such an at least partially exfoliated clay. Furthermore, the present invention is also directed to a polymeric composition comprising an at least partially exfoliated clay and/or a suspension comprising an at least partially exfoliated clay.

Method for preparing an at least partially exfoliated clay

Open-cell foam having a structure of interconnected struts formed of polymeric material and defining open cells, resulting from polymerization of a continuous phase of a high internal phase water-in-oil emulsion, the struts comprising the polymeric material with clay nanoparticles at least partially captured therewithin, is disclosed. The clay nanoparticles may be present in combination with a surface modifier. Methods for making the open-cell foam are also disclosed. Absorbent articles including the open cell foam are also disclosed.

Absorbent articles including HIPE foam enhanced with clay nanoplatelets, and method of manufacture

The invention relates to a process for delamination of a layered silicate in an aqueous medium, wherein in a first step a layered silicate is treated with a delamination agent, and in a second step the thus treated layered silicate is contacted with an aqueous medium, whereby the delamination agent is a compound having exactly one positively charged atom, the positively charged atom being selected from the group consisting of nitrogen and phosphorous; contains nfunctional groups selected from the group consisting of hydroxyl groups, ether groups, sulfonic acid ester groups and carboxylic acid ester groups, nbeing a number from 3 to 10; comprises a total number of carbon atoms nbeing from 4 to 12; has a ratio n/(1+n) from 1 to 2, wherein nis the total number of carbon atoms of the delamination agent and nis the total number of functional groups in the delamination agent as defined under ii.; contains natoms selected from the group consisting of carbon, nitrogen, phosphorous, oxygen and sulfur, nbeing ≥9; and wherein the delamination agent is used to treat the layered silicate in an amount of at least equal to the cation exchange capacity of the layered silicate. The invention further relates to the thus produced delaminated layered silicates, their use in the production of composite and coating material and as a barrier material. Moreover, the invention relates to compositions containing the thus produced delaminated layered silicates.

Process for delamination of layered silicates

A process for delamination of a layered silicate in an aqueous medium includes treating a synthetic or naturally occurring 2:1 clay mineral layered silicate with a delamination agent, and contacting the treated layered silicate with an aqueous medium. An amount of the delamination agent used to treat the layered silicate can be at least equal to the cation exchange capacity of the layered silicate. A delaminated layered silicate can be obtained from the process and provided in a dispersion, a composite, or a barrier.

A method for making water-absorbing polymer particles is provided and includes providing crosslinkers, polymerizable monomers and inorganic solid particles. The average closest distance between two neighboring crosslinkers (R) in a water-absorbing polymer particle for a specific X-load of the water-absorbing polymer particle is calculated via the formula below: 

Absorbent core having water-absorbing polymer particles

The present invention relates to sheet silicate lamellae of a 2:1 sheet silicate with a high aspect ratio, to a method for producing these sheet silicate lamellae and to an aqueous dispersion which comprises the sheet silicate lamellae. The present invention further relates to the use of the sheet silicate lamellae of the invention for producing a composite material, and also to a corresponding composite material comprising or obtainable using the sheet silicate lamellae, more particularly for use as a diffusion barrier or as a flame retardant.

Sheet silicate lamellae with a high aspect ratio

A new method for producing a crystalline form of 5-amino-2,3-dihydro-1,4-phthalazinedione (luminol) is provided. Advantageous uses for this crystalline form as a detecting agent or as an agent for forensic purposes are disclosed, as well a pharmaceutical composition containing said crystalline form.

Methhod for producing a crystalline form of 5-amino-2,3-dihydrophthalazine-1,4-dione

Described is an aqueous one-component coating composition comprising dispersed polyurethane and phyllosilicate. The polyurethane carries acid groups which are at least partially neutralized with a hydrophilic base selected from inorganic bases and organic mono-amines. The hydrophilic base has a water solubility at 20&#xb0; C. of at least 150 g/l, preferably of at least 200 g/l. The composition can be used for providing oxygen barrier properties to a polymer film.

One-component aqueous coating compositions containing polyurethane and phyllosilicates for oxygen barrier coatings

A new crystalline form of 5-amino-2,3-dihydro-1,4-phthalazinedione (luminol) is provided. Advantageous uses for this crystalline form as a detecting agent or as an agent for forensic purposes are disclosed, as well a pharmaceutical composition containing said crystalline form.

Crystalline form of 5-amino-2,3-dihydrophthalazine-1,4-dione

The invention relates to a method for preparing a hydrophobically modified clay, wherein the clay modifying agent corresponds to a quaternary ammonium based compound. The present invention further relates to a hydrophobically modified clay obtainable by such a method and to a suspension comprising such a clay, as well to the use of such a hydrophobically modified clay and of a suspension comprising such a hydrophobically modified clay. Furthermore, the present invention is also directed to a polymeric composition comprising a hydrophobically modified clay and/or a suspension comprising a hydrophobically modified clay.

Method for preparing a hydrophobically modified clay

Method for making water-absorbing polymer particles

A method for making water-absorbing polymer particles is provided and includes a first aqueous polymerization solution including crosslinkers, polymerizable monomers and/or oligomers and inorganic solid particles, and a second aqueous solution including inorganic solid particles, crosslinkers and either polymerizable monomers and/or oligomers, or crosslinkable polymers. The average closest distance between two neighboring crosslinkers (R) from the first aqueous polymerization solution or from the second aqueous solution for a specific X-load of the water-absorbing polymer particle is calculated via the formula below: 

Method for making water-absorbing polymer particles having areas with inorganic solid particles and areas substantially free of inorganic solid particles

Described is an aqueous composition comprising (a) at least one polyanion, (b) at least one ethoxylated cationic polymer, and (c) at least one phyllosilicate. The composition can be used for providing oxygen barrier properties to a polymer film.

Compositions containing polyanion, ethoxylated cationic polymer and phyllosilicates for improved oxygen barrier coatings

The invention relates to the provision of a new crystalline form for 5-amino-2,3-dihydrophthalazine-1,4-dione sodium, the use of this form for medical purposes, methods for producing the crystalline form according to the invention, as well as pharmaceutical preparations comprising said form.

Crystalline form of 5-amino-2,3-dihydrophthalazine-1,4-dione sodium salt, pharmaceutical preparations containing the same and method for the production of said form

An aqueous acidic polymerization liquid comprising polymerizable monomers or oligomers with carboxylate and/or carboxylic acid moiety or moieties, and edge modified clay that is homogenously dispersable in said liquid is provided, and also methods for making such liquids, and also edge-modified-clay linked water-absorbing polymers made by with said liquids and methods, and disposable absorbent articles comprising such edge-modified-clay linked water-absorbing polycarboxylate/polycarboxylic acid polymers.

Water-absorbent edge-modified-clay linked polymers

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Bayreuth, Germany

Josef Breu