Hoechst Aktiengesellschaft

Walter Schermann

Arno Holst

Wilhelm Fischer

Reinhard Donges

Dennis Miller

Jozef Bohme-Kovac

Walter Schrattenholz

Christoph Meister

Eckhard Hilgenfeldt

The invention relates to thickener combinations for building products of nonionic cellulose ethers soluble in water or aqueous surfactant solutions and selected surfactants or naphthalenesulfonic acid condensation products.

Thickener combinations for building products

The invention relates to water-soluble cellulose ethers, containing at least one fluorine-free radical attached via an ether link and selected from the group hydroxyethyl, hydroxypropyl, methyl, ethyl and carboxymethyl, and a hydrophobic substituent which comprises one fluorine-containing alkyl radical of 3 to 24, in particular 5 to 18, carbon atoms, the fluorine content being 0.05 to 5, in particular 0.1 to 1% by weight, based on the dry weight of the cellulose ether.

Modified cellulose ethers and the use thereof in dispersion paints

This invention relates to an improvement in a sheet material comprising natural or synthetic rubber or a rubber-like polymer, which is capable of absorbing and transmitting water vapor and which contains a uniformly incorporated addition of polymer particles, the improvement that the addition comprises particles of at least one swellable modified polymer. The invention also relates to a process for the manufacture of the sheet material.

Water vapor absorbing and transmitting sheet material of rubber

This invention relates to an improvement in a water vapor absorbing and transmitting adhesive containing at least one organic binding agent which is insoluble in water, and an addition of at least one hydrophilic polymer, the improvement that the hydrophilic polymer is a swellable modified polymer in the form of small particles. The invention also relates to a process for the manufacture of the adhesive.

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Mainz, Germany

Walter Schermann