Basf Aktiengesellschaft

Basf Magnetics Gmbh

Emtec Magnetics Gmbh

Basf Se Corporation

Styrolution Gmbh

Styrolution Europe Gmbh

Ineos Styrolution Europe Gmbh

Helmut Steininger

Peter Heilmann

Harald Keller

Erich Beck

Konrad Knoll

Daniel Wagner

Michael Schuster

Peter Hewkin

Martin Weber

Peter Nesvadba

Reinhold Schwalm

Rainer Blum

Karl Siemensmeyer

Walter Heckmann

Norbert Schneider

Horst Binder

Peter Schuhmacher

Frank Meyer

Frank Dietsche

Bernd Bronstert

Peter Blaschka

Klaus D Schomann

Ria Kress

Thomas Jaworek

Helmut Kopke

Peter Eibeck

Norbert Güntherberg

Ulrich Jaeger

Rainer Koeniger

Hans-Helmut Görtz

Thomas Breiner

Martin Baumert

Meik Ranft

Volker Richter

Rolf Mülhaupt

Wolfgang Best

Sebastian Enck

Jens Hartig

Cecile Gibon

Hans-Peter Schildberg

Geert Verlinden

Matthias Müller

Peter Merkel

Christof Mehler

Michael Willis

Gunter Heil

G&uuml;nter Bettinger

Christoph Tonhauser

Michel Munch

Claus Dallner

Alan Green

Tobias Reinhard Umbach

Florian Greger

Matthias Mueller

Guentherberg Norbert

Jürgen Weichmann

The invention relates to aqueous polymer dispersions, comprising a water insoluble polymer P in the form of dispersed polymer particles, which is obtainable by free radical aqueous emulsion polymerization of ethylenically unsaturated monomers M, which comprise a) at least one monomer M1 which exhibits two ethylenically unsaturated moieties which are connected by a linker which comprises a disulfide moiety, and b) at least one monoethylenically unsaturated monomer M2, which has a low water solubility. The invention also relates to processes for preparing such an aqueous polymer dispersion, to solid polymer compositions in powder form, obtainable by drying such polymer dispersions, to the use of such polymer dispersions in a coating material, adhesive or sealant and to a methods of coating a surface of a substrate which comprises applying an aqueous coating composition, which contains such an polymer dispersion.

Aqueous polymer dispersion

A mixture which comprises from 5 to 50% by weight of a block copolymer A, which comprises one or more copolymer blocks (B/S)each composed of from 65 to 95% by weight of vinylaromatic monomers and from 35 to 5% by weight of dienes and of a glass transition temperature Tgin the range from 40&#xb0; to 90&#xb0; C.; from 95 to 50% by weight of a block copolymer B, which comprises at least one hard block S composed of vinylaromatic monomers and comprises one or more copolymer blocks (B/S)each composed of from 20 to 60% by weight of vinylaromatic monomers and from 80 to 40% by weight of dienes and of a glass transition temperature Tgin the range from &#x2212;70&#xb0; to 0&#xb0; C.; from 0 to 45% by weight of polystyrene or of a block copolymer C other than A and B; and from 0 to 6% by weight of a plasticizer; and its use for production of shrink films.

Styrol/butadiene block copolymer mixtures for shrink films

Styrene butadiene block copolymer mixtures for shrink-wrap films

A multicoat system on a substrate, comprising at least one radiation-curable coating system (F) and at least one elastic intercoat (D) which is located between substrate and radiation-curable coating system (F) and has a glass transition temperature (T) of &#x2212;20&#xb0; C. or less.

Radiation-curable paint systems having a lower layer with low-temperature elasticity

The present invention relates to films which are coated with at least two paint coats () (), whereby the backing film () is coated with at least one radiation-hardenable paint coat () and at least one second paint coat (), which can harden at least partially without radiation. The invention also relates to a method for producing said films and to their use for coating steel, aluminium and plastic substrates.

Films coated with paint

Improved cholesteric special-effect layers are obtainable by comminuting cholesteric layers. These cholesteric layers are produced by applying at least one layer of a reactive, pourable cholesteric mixture to a moving substrate, by casting, and forming a solid cholesteric layer.

Coatings with a cholesteric effect and method for the production thereof

In the production of an anticopy film serving for covering documents against copying, opaque, strip-like coverings are applied by printing to the individual layers of a transparent, multilayer film in a mutually offset arrangement in such a way that the film appears opaque in the plan view, but transparent in an inclined viewing direction. To this end, a film web is printed with the coverings in sections corresponding to the layers, and the sections are subsequently folded over to give the layers.

Process for the production of an anticopy film

Electrode materials suitable for electrochemical cells containing a) a polymeric binder which is composed essentially of polyisobutene having a limiting viscosity number of from 551 to 661 g/cm.sup.3 and b) a solid which is capable of reversibly taking up or releasing lithium ions in an electrochemical reaction.

Electrode materials suitable for lithium-ion electrochemical cells

Electrodes suitable for electrochemical cells are produced by

Production of electrodes

Anticopying film

Anti-copy film layer for documents

The magnetic recording medium consists essentially of a polymeric substrate, a coherent, magnetic thin metal film applied to the surface of the substrate by a PVD method and, if required, a protective layer formed on the thin metal film. In order to achieve a large residual induction component in the plane of the film, in particular high residual induction in the transverse direction, the thin metal film contains a noble gas or noble gas mixture, preferably argon. During the coating of the polymeric substrate with the magnetic metal or with the magnetic alloy, the noble gas is fed directly and preferably tangentially to the substrate surface at a specific noble gas flow of from 1.0.multidot.10.sup.4 to 6.0.multidot.10.sup.4. In the plane of the thin metal film, the ratio of residual induction in the longitudinal direction to that in the transverse direction is from about 0.9 to about 1.8.

Magnetic recording medium and the production thereof

An anticopying film (2) for covering documents (1) appears opaque in vertical plan view (5) as a result of total reflection for protection against copying and appears transparent in the oblique viewing direction (6), the film having an irregular sawtooth structure (3). This makes it virtually impossible to produce an identical second film with the aid of which, by placing said second film on top, the effect of the anticopying film (2) might be eliminated.

A magnetic recording medium comprises a nonmagnetic substrate and at least one ferromagnetic metal layer applied thereon and a protective layer formed on this metal layer and consisting of a compound which consists of an unfluorinated or partially fluorinated alkyl radical and a disulfide, hydroxyl or keto group.

Magnetic recording medium

A magneto-optical recording element comprises

Sheet-like, multilayer magneto-optical recording material

Growing community of inventors

Worms, Germany

Helmut Steininger