Covestro Deutschland Ag

Bayer Aktiengesellschaft

Bayer Cropscience Ag

Covestro Intellectual Property Gmbh & Co. Kg

Bayer Materialscience Ag

Carsten Conzen

Ulrich Liesenfelder

Michael Bierdel

Reiner Rudolf

Johann Rechner

Lars Frye

Karl-Robert Boos

Dietmar Günther

Ingo Steinmeister

Wolfgang Güdel

Thomas König

Klemens Kohlgrüber

Thomas Koenig

Florian Lipski

Heinz-Friedrich Schnier

Nicolai Krasberg

Karl-Hermann Koeching

Klemens Kohlgrueber

Stefan Schmitz

Carsten Meyer

Birgit Derfuss

Karl-Hermann Köching

Livia Assumpcao Moreira

Birgit Mannel

Birgit Derfuß

Livia Moreira PÖLKING

A screw element which has an axially asymmetrical screw cross-sectional profile which has at least two construction points located within the screw cross-sectional profile is provided. The screw element is suitable for use in an extruder having two drive shafts which rotate in the same direction and at the same speed, in order to process or produce plastic masses as an extrudate. Also, an arrangement of two identical or different screw elements in an extruder having two drive shafts which rotate in the same direction and at the same speed is provided. An extruder which is equipped with two identical or different screw elements and has two drive shafts which rotate in the same direction and at the same speed is provided. Furthermore, the use of the screw element according to the invention for processing or producing plastic masses is provided.

Screw element having an axially asymmetrical screw profile which has at least two construction points located within the screw profile

A single-grain seeder for introducing seeds into soil, including a singulating member which is suitable for singulating seeds supplied from a storage container and for dispensing the seeds individually, wherein the single-grain seeder has an application unit for applying a dressing agent to a singulated seed, wherein the application unit is arranged with respect to the singulating member in such a manner that the dressing agent is applied to a seed after the seed has been singulated and prior to the seed being dispensed from the singulating member.

Precision seeder

A process for extruding plastic compositions is provided. The process comprises providing a multi-screw extruder with screw elements and conveying, kneading, mixing, degassing or compounding the plastic compositions in the multi-screw extruder using the screw elements.

Process for extruding plastic compositions

A production arrangement for performing a chemical reaction with a standard transport container in accordance with DIN ISO 668 for accommodating a plurality of processing units disposed inside the standard transport container for assisting and/or performing a processing basic operation, and a supply network, disposed inside the standard transport container, for supplying the processing units with material and/or power and/or information. Owing to the supply network disposed inside the standard transport container, the availability of material and/or power and/or information can be ensured over a large area of the standard transport container, such that the same standard transport container with the same supply network can be re-used for different configurations of processing units and, in the event of a modification for performing a different chemical reaction, the processing units can simply be interchanged such that different chemical reactions can be performed with little outlay.

Production arrangement for performing a chemical reaction and use of a standard transport container

Processing unit for assisting and/or performing a processing basic operation for a chemical reaction, with an operating unit for preparing a contribution for the processing basic operation and a frame for accommodating the operating units, the frame having an extension din the longitudinal direction which corresponds substantially to an integral multiple Zof an integral portion Nof an extension L, in the longitudinal direction of an interior of a standard transport container, in accordance with DIN ISO 668, and/or the frame having an extension din the transverse direction with corresponds substantially to an integral multiple Zof an integral portion Nof an extension Lin the transverse direction of an interior of a standard transport container, in particular in accordance with DIN ISO 668, wherein different processing units can be stored in a pool for different processing basic operations and be assembled in modular and flexible manner in the standard transport container for the synthesis of a given chemical product.

Processing unit and use of a plurality of processing units

The invention relates to a process for extruding plastic compositions. The process in particular relates to the conveying, kneading and/or mixing of plastic compositions, in particular of polymer melts and mixtures of polymer melts, above all thermoplastics and elastomers, particularly preferably polycarbonate and polycarbonate blends, also with the incorporation of other substances such as for example solids, liquids, gases or other polymers or other polymer blends.

Method for extruding plastic masses

The invention relates to an apparatus and a process for producing pigment-containing, in particular carbon-black-containing, polymer mixtures comprising polycarbonates and optionally elastomers, and/or other components, where the mouldings produced therefrom have, after the shaping process via injection moulding or via extrusion, improved surface properties and improved mechanical properties.

Apparatus and process for producing products from pigment-containing polymer mixtures

Growing community of inventors

Leverkusen, Germany

Carsten Conzen