Cassella Aktiengesellschaft

Gerlinde Ebert

Friedrich Engelhardt

Fritz Engelhardt

Ulrich Riegel

Heinz Hoffmann

Hanss-Jerg Kleiner

Rainer Greve

Werner Zschau

Gerhard Platz

Werner Ritschel, Deceased

The present invention relates to absorbents for water and aqueous solutions, in particular for blood, which contain a product from the tuber of a plant from the family of the Araceae.

Absorbent for water and aqueous solutions

The present invention relates to a hydrophilic, highly swellable hydrogel based on (co)polymerized hydrophilic monomers or based on graft (co)polymers, characterized in that it has been surface-modified by means of a mixture of

Hydrophilic, highly swellable hydrogels

The present invention relates to a process for obtaining the hydrocarbon from a hydrocarbon-rich gel based on an ionic surfactant by treatment of the gel with a laminar mineral.

Process for obtaining the hydrocarbon from a hydrocarbon-rich gel

The present invention relates to the use of hydrocarbon-rich gels as a safe storage or transportation form for liquid hydrocarbons and to a process for the safe storage and safe transportion of liquid hydrocarbons, characterised in that

Process for the storage and transportation of liquid hydrocarbons

The present invention relates to hydrophilic, swellable polymers which consist of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.

Hydrophilic, swellable polymers

The present invention relates to hydrophilic, swellable polymers which consists of radicals of the general formula I ##STR1## wherein R.sup.1 to R.sup.3 are defined as stated in the description, and of radicals of a crosslinking agent which have originated from monomers having at least two olefinically unsaturated double bonds, and which are characterized in that they are in the form of a highly porous, foam-like polyhedral structure, their preparation and their use as absorption agents for water and aqueous solutions.

The present invention relates to the use of hydrocarbon-rich gels as fracturing fluids and also to fracturing fluids which are composed of a hydrocarbon-rich gel and an auxiliary.

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Dreieich/Offenthal, Germany

Gerlinde Ebert