Wolff Walsrode Ag

Bayer Akteingesellschaft

Wolff Wolsrode Ag

Wolfe Walsrode Ag

Wolff Walstrode Ag

Dow Global Technolgoies LLC

Gunter Weber

Klaus Szablikowski

Hanns-Peter Muller

Rainhard Koch

Hartwig Schlesiger

Jurgen Engelhardt

Martin Morning

Sebastian Meyer-Stork

Hanns P Muller

Bernd Klinksiek

Wolfgang Koch

Joachim Simon

Rolf Dhein

Kirkor Sirinyan

Lutz Hoppe

Meinolf Brackhagen

Jochen Kalbe

Benno Franz Ulfik

Detmar Redeker

Michael Hennig-Cardinal Von Widdern

Dirk Jacques Dijkstra

Tillmann Hassel

Erhard Luhmann

Roland Bayer

Ulrich Reiners

Dirk Schultze

Dirk Pophusen

Hanns-Peter M&uuml;ller

Werner Lange

Erik-Andreas Klohr

René Kiesewetter

Nicole Hargarter

Burkhard Kressdorf

Ralf Schledjewski

Gerd Sonnenberg

Volkhard Muller

Ren&eacute; Kiesewetter

Volker Eckhardt

Michael Stiem

J&uuml;rgen Hinderer

Thomas Gernot

Michael H-c Von Widdern

Rudolf Lelgemann

Jürgen Hinderer

Hans-Jürgen Juhl

Grit Siegmund

Arne Kull

The present invention relates to a new, particularly economical process for preparing particulate water-soluble cellulose derivatives. The process involves forming a feed composition of swollen and/or dissolved cellulose derivative, and water. The feed composition is contacted with a superheated gas mixture, in a sieve-free high rotational speed gas jet impact mill, and the cellulose derivative of the feed composition is converted into a solid state form of finely particulate particles. The superheated gas mixture, with which the feed composition is contacted, is selected from: (i) a superheated gaseous mixture of steam and an inert gas; and (ii) a superheated gas mixture of steam and air. The superheated gas mixture has a steam content of 40 wt. % to 99 wt. %, based on the total weight of the superheated gas mixture.

Process for producing particulate, water-soluble cellulose derivatives using a superheated gas mixture containing steam

Described is a building material composition prepared from or having added thereto a particulate material selected from particulate polysaccharides or particulate polysaccharide derivatives. The particulate material of the building material composition is prepared by a method comprising: (a) forming a feed composition comprising a member selected from the group consisting of polysaccharides and polysaccharide derivatives, and 35 wt. % to 99 wt. % of water, based on the total weight of the feed composition, wherein said member is at least one of swelled and dissolved in the feed composition; (b) contacting, in a mill, the feed composition with a gas stream, thereby converting simultaneously the water of said feed composition into water vapor, and said member of said feed composition into a solid state form of finely particulate material; (c) separating the particulate material from the gas stream; and (d) optionally drying the particulate material. Examples of building material compositions according to the present invention include tile adhesives and joint fillers.

Building material compositions

This invention relates to a coextruded biaxially stretched tubular film for the durable and crease-free covering of goods packaged in the liquid or pasty state, in particular foodstuffs such as sausage-meat for boiling or cooking or soft cheese, which are heated during and/or after they are packaged.

Coextruded, at least 3-layered, biaxially stretched tubular film with inner PA layer

Finely divided polysacharide derivatives are described. The finely divided polysacharide derivatives are prepared by a process comprising: a) forming an aqueous composition comprising a polysaccharide derivative and water, in which the polysaccharide derivative is soaked or dissolved; b) converting the polysaccharide derivative of the aqueous composition into finely divided solid particles by, (i) contacting the aqueous composition with superheated water vapor in a dryer-pulverizer; or (ii) causing the polysaccharide derivative of the aqueous composition to flocculate; and c) optionally drying the finely divided solid particles of step b). The primary structures of the polysaccharide starting material are largely removed, and the product has a shape factor of less than 5 and greater than or equal to 1.

Finely divided polysaccharide derivatives

The present invention relates to a new, particularly economical process for producing particulate water-soluble cellulose derivatives. The process involves forming a feed composition of swollen and/or dissolved cellulose derivative, and water. The feed composition is contacted with a carrier and heat exchange gas, in a sieve-free high rotational speed gas jet impact mill, and the cellulose derivative of the feed composition is converted into a solid state form of finely particulate particles. The particulate cellulose derivative is then separated from the heat exchange gas and carrier gas, and optionally dried. The mill drying and the particulate cellulose derivative product are influenced by establishing a specific water content in the swollen and/or dissolved cellulose derivative.

Process for producing particulate, water-soluble cellulose derivatives

The present invention relates to novel thermoplastic materials based on polysaccharide ethers which are simultaneously substituted by carboxylic acid ester groups and carbamate groups, together with mixtures of such derivatives with low molecular weight aliphatic urea derivatives.

Polysaccharide-based thermoplastic material, process for preparing the same and method of use thereof

The invention relates to a new, particularly economic process for preparing pulverulent polysaccharide derivatives, in particular cellulose derivatives, having a thermal flocculation point; the process comprises soaking or dissolving the polysaccharide derivative in a solvent or mixed solvent, dividing/comminuting the soaked or dissolved polysaccharide derivative by thermal and/or mechanical liquid separation and an optional drying step.

Process for preparing fine-particle polysaccharide derivatives

The present invention relates to a method for modifying articles and/or semi-finished products made from polymer resin moulding compositions, wherein said articles and/or semi-finished products, which substantially consist of moulding compositions comprising mixtures of thermoplastic polymers where exhibit good biodegradability and thermoplastic polymers which exhibit poor biodegradability, are subjected to biodegradation.

Method for modifying products or half-stuffs from molding materials consisting of mixtures of thermoplastic synthetic materials

The present invention relates to an at least single-layer, tubular, biaxially stretched, biodegradable and compostable food casing, in particular a sausage casing, at least one layer consisting substantially of a thermoplastically processable, biodegradable polymer.

Biaxially stretched, biodegradable and compostable sausage casing

The present invention provides thermoplastically workable and completely biodegradable moulding compositions, a process for the preparation thereof and the use thereof as biodegradable materials for the production of, for example, injection-moulded parts, films, fibres or coatings.

Thermoplastically workable, biodegradable moulding compositions

The present invention relates to novel thermoplastic, biodegradable polysaccharide ether esters, such as for example cellulose ether esters or starch ether esters, and to the production of such graft copolymers from polysaccharides, epoxides and dicarboxylic acid anhydrides and to the use thereof, for example as moldings, films or coatings.

Thermoplastic biodegradable polysaccharide derivatives, process for the

The invention relates to the lacquering of polar film substrates with a coating system consisting of several components, the single application of material resulting in a multilayer structure of the lacquer coat. The coating system is preferably aqueous and free from organohalogen and results in an improved barrier action of the films against water vapor.

Multilayer lacquering of polar film substrates by a single application

The present invention relates to novel thermoplastic, water-insoluble cellulose hydroxyalkyl hydroxycarboxylic acid esters of the general structure

Thermoplastic cellulose ether ester graft copolymers and process for

This invention relates to a coextruded, biaxially stretched tubular film for durable and crease-free casings for processed meat products which are heat treated after the filling process.

5-layered coextruded biaxially stretched tubular film having at least 3

This invention relates to a multilayer organochlorine-free tubular casing consiting of

Tubular casing with an organochlorine-free coating impermeable to oxygen

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Fallingbostel, Germany

Gunter Weber