Basf Se Corporation

Basf Aktiengesellschaft

Karl-hermann Strube

Wolfgang Koerwer

Alfred Bach

Karl-Hermann Strube

Ralf Widmaier

Eberhard Schupp

Rainer Dobrawa

Josef Neutzner

Klaus Schnell

Reinhold Dieing

Ivette Garcia Castro

Bernhard Fussnegger

Bernd De Potzolli

Ulrich Filges

Jürgen Nieberle

Andreas Gruber

Wolfgang Bouquet

Olga Pinneker

Karl Kolter

Dieter Faul

Thomas Friedrich

Stefan Stein

Hermann Ascherl

Martin Meister

Siegfried Bialojan

Peter Hössel

Burkhard Kroeger

Erik Bohrer

Peter Schmidt

Norbert Gebhardt

Peter Mendera

Manfred Kroll

Simone Lehnert

Frank Höfer

Disclosed is a method of making packaging material for polymers susceptible to oxidation. The packaging material utilizes a composite foil. The composite foil has at least three layers and have barrier layers based on polyvinyl alcohols. The composite foil may be used to package polymers susceptible to oxidation. Also disclosed is a process for packaging the polymers and the packaging composed of the composite foil.

Use of composite films as a packaging material for oxidation-sensitive polymers, method for packaging oxidation-sensitive polymers, and packaging containing said composite films

Method for stabilizing polyvinylpyrrolidones, which comprises treating the polyvinylpyrrolidones with sulfur dioxide, sulfurous acid or alkali metal sulfites and then with free-radical scavenger, and converting the solutions treated in this way into the powdered polyvinylpyrrolidones by drying.

Method for the stabilization of polyvinylpyrrolidones

Method of producing copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator, where the polymerization is carried out under a gauge pressure such that evaporation of the components is avoided.

Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer by polymerization under increased pressure

Aqueous solutions comprising: one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof; and hydrogen peroxide; wherein the hydrogen peroxide is present in an amount of 100 to 5000 ppm; and methods of stabilizing aqueous solutions containing one or more polymeric components selected from the group consisting of homopolymers of N-vinylpyrrolidone, copolymers of N-vinylpyrrolidone, and mixtures thereof.

Stabilisation of aqueous solutions of homopolymers and copolymers of N-vinylpyrrolidones

Methods of producing vinyllactam copolymers which include: providing at least one water-soluble N-vinyllactam; providing at least one hydrophobic comonomer; and subjecting the at least one water-soluble N-vinyllactam and the at least one hydrophobic comonomer to free-radical polymerization in an organic solvent in the presence of an initiator, under a combination of process measures selected from the group consisting of A and B; wherein:

Methods of producing water-soluble, non-turbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer

Method of producing vinyllactam copolymers by free-radical polymerization of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer in an organic solvent in the presence of an initiator under reflux conditions, where N-vinyllactam is added to the reflux.

Method of producing water-soluble nonturbid copolymers of at least one water-soluble N-vinyllactam and at least one hydrophobic comonomer

Ancrod proteins, their preparation and use

Thrombin-inhibitory proteins from terrestrial leeches

Growing community of inventors

Speyer, Germany

Karl-Hermann Strube