List Holding Ag

List Technology Ag

Manuel Steiner

Daniel Witte

Thomas Isenschmid

Andreas Diener

Pierre-Alain Fleury

Pierre Liechti

Oliver Tretzack

Alfred Kunz

Reinhard Geisler

Wangqian Zhao

Alain Schwick

Roland Kunkel

Sven König

Weilie Wang

A method for production of a molded article from a base substance in a device for mixing of the base substance with a solvent is provided. The method includes mixing a base substance to produce a molding solution with the solvent and at least partially removing the solvent from the mixture; and feeding the molding solution to a device for further processing of a product and diluting the molding solution before further processing. In embodiments, the diluent is introduced to the device before a discharge device and/or in the discharge device.

Process for producing a product

A process for thermal separation of a solution comprised of a thermoplastic polymer and a solvent involves heating a solvent under pressure above a critical point of the solvent; decompressing the heated solvent in a first vessel, such that a polymer-rich and a low-polymer phase form; and supplying the polymer-rich phase to a second vessel. In embodiments, on entry into the second vessel, a pressure jump occurs, the pressure jump leading to a thermal flash in the second vessel such that a polymer part of the polymer-rich phase rises to at least 70%, and a resulting polymer-rich solution is provided.

Process for thermal separation of a solution

The invention relates to a method for treating a monomer, pre-polymer, polymer or a corresponding mixture, in particular for producing a dope for producing a polymer fiber, in particular a p-aramide fiber, in which the monomer, pre-polymer, polymer, additives or a corresponding mixture is admixed with a solvent, blended, fused, homogenized and/or degassed and then discharged, which takes place at least partially in a reactor (), is to force-feed the monomer, pre-polymer, polymer or a corresponding mixture into the reactor () using a force-feed device ().

Method for treating a monomer, pre-polymer, polymer or a corresponding mixture

Process for thermal separation of a solution consisting of thermoplastic polymer and solvent

A process for the continuous thermal treatment of mixed substances, especially of solutions, suspensions and emulsions, wherein the continuous treatment of the mixed substances is divided into a main vaporization and a degassing stage, in which instance the main vaporization and the degassing take place in each case takes place in a separate mixer-kneader.

Process and a device for the continuous treatment of mixed substances

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Basel, Switzerland

Manuel Steiner