Bayer Aktiengesellschaft

H.c. Starck Gmbh

Bayer Technology Services Gmbh

Bayer Healthcare LLC

Bayer Intellectual Property Gmbh

H.c. Starck Clevios Gmbh

Hof Sonderanlagenbau Gmbh

Dietrich Gehrmann

Norbert Schweigler

Hartwig Kempkes

Ariane Firus

Paul Wagner

Winfried Joentgen

Torsten Groth

Stephan Kirchmeyer

Bernhard M Wessling

Deqian Wang

Bernd Sennhenn

Thomas Bamberger

Bernhard Wessling

Heinz Müller

Thomas Daun

Manfred Giltjes

Heinz Mueller

Wang Deqian

Process for producing containers of a freeze-dried product wherein droplets of the product are frozen to form pellets, the pellets are freeze-dried, assayed and loaded into the containers.

Sterile freezing, drying, storing, assaying and filling process

Disclosed herein is a water-dispersible powder consisting essentially of polymers T comprising recurring thiophene units and at least one further polyanionic polymer P and process for preparing and using the same.

Dispersible polymer powders

A drying unit for removing solvent from moist material, and a method for drying moist material with the drying unit. The unit comprises at least one drying chamber () having at least one stand plate () for holding vessels (), which are filled with moist material, or flat layers of moist material, the drying chamber () being connected to a condenser () via a vapor passage (), in which sublimed solvent can be separated out, the stand plates () being connected to a temperature-controlled heating/cooling circuit, the chamber () having heating/cooling plates () or (') which are connected to a second heat-transfer circuit, wherein the heating/cooling plates () or (&#x2032;) are substantially thermally isolated from the chamber wall ().

Freeze-drying apparatus

Continuous process and apparatus for the drying and gel formation of solvent-containing gel-forming polymers

The device for continuous filtration and drying of a solid suspension comprises a belt filter (1) and downstream a belt drier (2). By means of a porous conveyor belt (3) the filter cake generated in the belt filter (1) is conveyed further into the belt drier (2) in which there are provided heating devices for heating and drying the filter cake (7) which is on the conveyor belt (3). After leaving the belt filter (1), the filter cake (7) is present on the conveyor belt (3) in the form of a gas-permeable bed of solids in layer form having a maximum layer thickness of 50 mm, preferably a maximum of 20 mm. The heating devices in the belt drier comprise, on the one hand, a hot gas chamber (8) disposed above the conveyor belt (3) to generate a hot gas which flows through the bed of solids downwardly from above and, on the other hand, one or more contact heating elements (10, 15, 18, 19, 20, 22) disposed above and/or below the conveyor belt (3).

Device for continuous filtration and drying of a solid suspension

Molten maleic anhydride is introduced in the form of fine droplets at 53.degree. C. to 250.degree. C. and preferably at 60.degree. C. to 120.degree. C. into a gas atmosphere which consists either of pure gaseous ammonia or of a gas mixture of ammonia and at least one other gas and of which the temperature is between 20.degree. C. and 500.degree. C. The process is carried out at a temperature of 120.degree. C. to 180.degree. C. for the production of polysuccinimide and at a temperature of 10.degree. C. to 120.degree. C. for the production of maleic amide acid.

Process for the production of polysuccinimide or maleic amide acid

The device for continuous filtration and drying of a solid suspension comprises a belt filter (1) and downstream a belt drier (2). By use of a porous conveyor belt (3) the filter cake generated in the belt filter (1) is conveyed further into the belt drier (2) in which there are provided heating devices for heating and drying the filter cake (7) which is on the conveyor belt (3). After leaving the belt filter (1), the filter cake (7) is present on the conveyor belt (3) in the form of a gas-permeable bed of solids in layer form having a maximum layer thickness of 50 mm, preferably a maximum of 20 mm. The heating devices in the belt drier (2) comprise, on the one hand, a hot gas chamber (8) disposed above the conveyor belt (3) to generate a hot gas which flows through the bed of solids downwardly from above and, on the other hand, one or more contact heating elements (10, 15, 18, 19, 20, 22) disposed above and/or below the conveyor belt (3).

Growing community of inventors

Leverkusen, Germany

Dietrich Gehrmann