Bayer Aktiengesellschaft

Other

Burkhard K&ouml;hler

Rolf Grosser

Yun Chen

Walter Lange

Uwe Zweering

Stefan Michel

Bruno B&ouml;mer

Wolfgang Ebert

Klaus Horn

Joachim Probst

Harald Pielartzik

Eckhard Wenz

Holger Warth

Olaf Halle

Beate Baumbach

Karsten Reihs

Christian F&uuml;ssel

Robert Kumpf

Duane Priddy, Jr

R&uuml;diger Seidel

Flore Kempkes

The present invention relates to the use of optically active polymers of N-acryloyl-phenylalanine neomenthylamide as such, in crosslinked form and/or in carrier-bonded form as stationary phases for the chromatographic separation of enantiomers of lactones.

Chromatographic separation of enantiomers of lactones

Aspartate-functional silicone and the process for its preparation is disclosed. Also disclosed are aromatic polycarbonate that contains the inventive aspartate-functional silicone, a process for its preparation and its use in making molded articles.

Polycarbonates containing aspartic acid-ester functional silicones

This invention relates to oligomeric bischloroformic acid esters which are obtainable, in a two-phase reaction, from selected cycloaliphatic bisphenols and other bisphenols by introducing phosgene.

Oligomeric bischlorocarbonic acid esters obtained from selected cycloaliphatic bisphenols and other bisphenols

A composite material is described which comprises at least two layers of different plastics materials which are directly bonded to each other, wherein A) one layer of the composite comprises polyurethane, and B) a layer of the composite which is directly bonded to layer A) comprises a thermoplastic plastics material which is different from the material which layer A) comprises, wherein layer A) contains homogeneously distributed particles, which are at least coated with a thermoplastic plastics material which is different from the material comprising layer A), and which have a particle size of &lE;50 nm, wherein the total surface area of the particles corresponds at least to the extent of the total interface between layers A) and B). A process for the production of these composites is also described, as is the use of these composites in motor vehicle construction.

Composite material comprising polyurethane and at least one thermoplastic plastics material, a process for the production thereof and the use thereof in motor vehicles

Coated substrates prepared from special polyols and oxalic acid

The invention relates to sulfonated bead polymers prepared from styrene, vinylpyridines, further monomers, and crosslinkers, to a process for preparing them, and to their use as cation exchangers.

Sulfonated bead polymers prepared from styrene, vinylpyridines, and crosslinkers

The present invention relates to mixtures of cyclic oligocarbonates, to their production by way of mixtures of bischloroformates, and to their use for the production of linear polycarbonates and for the modification of other linear polycarbonates.

Mixtures of cyclic oligocarbonates, their production and use

Chromatographic enantiomer separation of lactones

Growing community of inventors

Leverkusen, Germany

Burkhard Köhler

Growing community of inventors

Leverkusen, Germany

Burkhard K&ouml;hler

Burkhard Köhler