Bayer Aktiengesellschaft

Covestro Deutschland Ag

Covestro Intellectual Property Gmbh & Co. Kg

Bayer Technology Services Gmbh

Lars Frye

Florian Lipski

Dietmar Günther

Ulrich Liesenfelder

Carsten Conzen

Karl-Robert Boos

Nicolai Krasberg

Gerhard Monscheuer

Ingo Steinmeister

Oliver Reinold

Wolfgang Güdel

Yasar Guendogan

Reinhard Engelstaedter

Andreas Seidel

Eckhard Wenz

Johan Vanden Eynde

Hans-Juergen Thiem

Hans-Juergen Klankers

Ingmar Hermsdorfer

Karl-Hermann Koeching

Anja Ehrig

Hartwig Kempkes

Stefan Schmitz

Carsten Meyer

Birgit Mannel

Kristof Heylen

Karl-Hermann Köching

Yasar GÜNDOGAN

Reinhard ENGELSTÄDTER

The present inventions relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol. Especially, the present invention relates to the preparation of 3,3,5-trimethylcyclohexylidene bisphenol from 3,3,5-trimethylcyclohexanone and phenol in the presence of a gaseous acidic catalyst. The preparation comprises a first drying step and a second drying step wherein in the second drying step the temperature is increased in comparison to first drying step or in the second drying step the pressure is lowered in comparison to first drying step, or in second drying step both the temperature is increased and the pressure is lowered in comparison to the first drying step (d1).

Process for the preparation of 3,3,4-trimethylcyclohexylidene bisphenol (BP-TMC)

A holding stand for a multicoupling for filling and/or emptying a chemical plant container is provided, having a mounting device for the essentially stationary fastening of the holding stand and at least one compensating device, couplable indirectly or directly to the multicoupling, for varying a position of the multicoupling in relation to the mounting device in the vertical direction and/or in the horizontal direction and/or for varying an angular position of the multicoupling in relation to the mounting device about a vertical and/or horizontal axis of rotation. It thereby becomes possible for a multicoupling to be coupled simply.

Retaining frame for a multicoupling for filling and/or draining a chemical plant container

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 concerns a computerized method for producing a two-dimensional plant model of a modular production plant for producing a chemical product, the production plant comprising at least two processing modules, which can be connected to one another for production purposes, and at least one processing container in which the processing modules can be accommodated at least partially, as required, wherein, for each processing container, a common two-dimensional container model () of its the base area () and of the base area () of a container environment at least partially surrounding the processing container and of predefinable size being generated, wherein, for each processing module, a two-dimensional module model () of its base area is generated, wherein the container model () and the module model () are divided into fields () which are of equal size and preferably square, there being assigned to each field () of a module model () a module property concerning the occupancy of the particular field () by a functional device, of the particular processing module, disposed above the base area portion, of the particular processing module, corresponding to this field (), by an operations room which is disposed above the base area portion, of the particular processing module, corresponding to this field () and assigned to the processing module, or by a material outlet of the processing module which is disposed above the base area portion, of the particular processing module, corresponding to this field (), there being assigned to each field () of the container model () an occupancy property concerning the (im)possibility of the particular field () being occupied by a module property, the module model () being disposed in the container model () taking account of the module properties and occupancy properties.

Computerized method for producing a production plant model

The invention relates to a method for producing compositions containing vinyl-aromatic copolymers that are obtained in an emulsion polymerization process and comprise production-related salt inclusions. Said compositions are characterized by improved surface quality following storage in a warm-humid environment and are therefore suitable for producing molded articles having a class A surface that remains flawless over time.

Method for the production of ABS compositions having an improved surface following storage in a warm-humid environment

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Leichlingen, Germany

Lars Frye