Basf Se Corporation

Sion Power Corporation

Basf Aktiengesellschaft

Tobias Petsch

Marianna Pierobon

Robert Bayer

Klemens Mathauer

Andrea Misske

Ruediger Schmidt

Veronika G Viner

Bala Sankaran

Michael Kerber

Hermann Josef Feise

Sven Fleischmann

Frank Müller

Julia Brodersen

Helmut Meffert

Ates Erk

Jörg Kreβ

Ralf Mar

Christian Drohmann

Simone Schillo

Rüdiger Schmidt

Elisa Hamm De Bantleon

Ralf Lachmuth

Karl-Otto Heilmann

Thomas Keßler

Jörg Kress

The invention relates to the use of polymers comprising thermoplastic polymers as filtration aids and/or stabilishing agent for the filtration or stabilisation of aqueous liquids.

Use of polymers comprising thermoplastic polymers as filtration aids and/or stabilising agent

Electrode structures and electrochemical cells are provided. The electrode structures and/or electrochemical cells described herein may include one or more protective layers comprising a polymer layer and/or a gel polymer electrolyte layer. The polymer layer may be formed from the copolymerization of an olefinic monomer comprising at least one electron withdrawing group and an olefinic comonomer comprising at least one electron donating group. Methods for forming polymer layers are also provided.

Polymers for use as protective layers and other components in electrochemical cells

Methods for regenerating filter aids which comprise inorganic, natural or semisynthetic filter aids. The method comprises subjecting the filter aid to a first treatment with an aqueous alkaline solution, treating the filter aid with enzymes, treating the filter aid with a surfactant, and subjecting the filter aid a second treatment with the aqueous alkaline solution. The enzyme treatment and the surfactant treatment steps may be carried out simultaneously or in any order.

Method for regenerating a filter aid

Processes comprising: (i) providing a filter aid comprising a co-extrudate of a water-insoluble polyvinylpyrrolidone and a thermoplastic polymer, (ii) treating the filter aid with aqueous alkali; (iii) subsequently treating the filter aid with an enzyme; and (iv) subsequently thereto carrying out a second treatment with aqueous alkali, to provide a regenerated filter aid, and uses therefor.

Method for regenerating an auxiliary filtering agent

Process for removal of residual styrene monomers from polystyrene and from blends comprising water-insoluble, crosslinked polyvinylpyrrolidone, via treatment with water, which comprises carrying out the treatment on a particulate solid blend.

Method for producing blends consisting of polystyrene and of a cross-linked polyvinyl pyrrolidone having a reduced styrene residual monomer content

Process for production of polymer blends which are suitable as filter aids and are composed of polystyrene and of crosslinked water-insoluble polyvinylpyrrolidones via processing of the two components in an extruder, which comprises melting polystyrene in an extruder and then treating it with the polyvinylpyrrolidone, and adding, to the mixture of the components, from 0.1 to 10% by weight of water, based on the total amount of polystyrene and popcorn polymer, and extruding and comminuting the mixture.

Method for producing polymer blends suited for use as filters

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Mörschied, Germany

Tobias Petsch