Bayer Aktiengesellschaft

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Miles Inc.

Wolff Walsrode Ag

Bayer Akteingesellschaft

Rolf Dhein

Rolf-Volker Meyer

Hans Rudolph

Friedrich Fahnler

Knud Reuter

Wolfgang Ebert

Dietrich Michael

Manfred Schreckenberg

Hanns P Muller

Herbert Hugl

Karl-Heinz Hentschel

Erich Eimers

Rolf Kuchenmeister

Dieter Freitag

Helmut-Martin Meier

Rudolf Merten

Burkhard Kohler

Klaus Reinking

Hanns-Peter Muller

Wilfried Zecher

Wolfgang Beer

Ralf Dujardin

Walter Schafer

Jochen Schoeps

Jurgen Hocker

Gunther Weymans

Karlheinz Hildenbrand

Hans J Kreuder

Klaus Horn

Hans-Detlef Heinz

Martin Wandel

Heinz Pudleiner

Thomas Scholl

Karsten-Josef Idel

Werner Nouvertne

Uwe Westeppe

Harald Pielartzik

Jens Winkel

Jurgen Kirsch

Werner Nielinger

Ludwig Rottmaier

Werner Waldenrath

Bert Brassat

Gerhard Klein

Wolfgang Cohnen

Karl Zabrocki

Werner Kloker

Hugo Vernaleken

Dieter Margotte

Joachim Probst

Wilfried Haese

Johannes Blahak

Bernhard Jansen

Klaus Kircher

Richard Weider

Werner Kubitza

Tillmann Hassel

Rolf Wiedermann

Lothar Preis

Miklos Von Bittera

Wilhelm Stendel

Josef Pedain

Christian Lindner

Kurt Findeisen

Kuno Wagner

Rolf Wehrmann

Hermann Hagemann

Christian Wamprecht

Engelbert Kuhle

Harald Blum

Friedrich Jonas

Hans-Joachim Traenckner

Hans-Georg Heine

Kirkor Sirinyan

Alfred Pischtschan

Manfred Bock

Edgar Ostlinning

Hermann Perrey

Hans-Georg Hoppe

Leo Morbitzer

Josef Merten

Peter Hohlein

Volker Eckhardt

Peter Tacke

Michael Sonntag

Frank Wingler

Manfred Hajek

Wolfgang Wellner

Herbert Heidingsfeld

Gerhard Heywang

Gunter Weber

Roland Rupp

Alexander Karbach

Manfred Dollhausen

Peter R Muller

Otto Exner

Siegfried Anders

Christian Weber

Gerhard Hohmann

Aziz El-Sayed

Coating compounds, a process for their production and their use for the production of coatings

A process for the preparation of a polyurethane-urea elastomer having a mole ratio of NCO groups to all active hydrogen atoms in the range of 0.9 to 1.2 is disclosed. The process comprise reacting (A), (B) and (C.2) for form an NCO-containing prepolymer and then reacting said prepolymer with (C.1) and (D). Accordingly (A) is 5-isocyanato-1-(isocyanatomethyl)-1,1,3-trimethylcyclohexane or bis-(4-isocyanatocyclohexyl)-methane,(B) is polytetrahydrofuran or hexanediol polycarbonate and (C.2) is a chain extender. (C.1) is 5-amino-3-amino-methyl-1,3,3-trimethylcyclohexane or bis-(4-aminocyclohexyl)-methane and (D) is a molecular weight regulator. The elastomer thus produced is particularly suitable for the preparation of moldings, films, flexible tubing (for medical purposes) and catheters.

Cycloaliphatic thermoplastic polyurethane elastomers

The invention relates to thermoplastic molding compounds containing polyisobutylene-modified polycarbonate, graft polymer and optionally copolymer, aromatic polycarbonate, polyolefins.

High-impact molding compounds based on polyisobutylene-containing

A thermoplastic molding composition containing an aromatic polycarbonate and a particular siloxane compound is disclosed. The composition which is based on a polycarbonate resin having bifunctional structural units corresponding to formula (Ia) ##STR1## wherein R.sup.1 and R.sup.2 denote, independently of one another, hydrogen, halogen, C.sub.1 -C.sub.8 alkyl, C.sub.5 -C.sub.6 -cycloalkyl, C.sub.6 -C.sub.10 -aryl, or C.sub.7 -C.sub.12 -aralkyl,

Stabilization of polycarbonates having high heat distortion temperatures

The present invention relates to the use of special monocarboxylic acids as chain terminators for the preparation of polycarbonates and of polyester carbonates, and to the polycarbonates and polyester carbonates obtainable according to the invention.

Use of tertiary aliphatic monocarboxylic acids as chain terminators for

The invention relates to the use of hydrogenated abietic acid as a chain terminator for the production of polycarbonates and polyester carbonates and to the polycarbonates and polyester carbonates obtainable in accordance with the invention.

Use of hydrogenated abietic acid as a chain terminator for the

Coating compound, a process for its preparation and its use for the

The present invention provides polycarbonates with aliphatic ketocarboxyl end groups, optionally mixed with known aromatic polycarbonates, and a process for their preparation, the chain terminators used being those of formula (I): ##STR1## The present invention also provides mixtures of the polycarbonates or polycarbonate mixtures with reactionless polyisobutylenes.

Polycarbonates with aliphatic ketocarboxyl end groups, mixed with known

This invention relates to decomposable polyamide masses for packaging materials containing 5 to 25% by weight of an addition of linear, oligomeric aliphatic polyesters or polycarbonates with molecular weights from 800 to 4000. These additives preferably consist of polyesters of aliphatic diols and dicarboxylic acids having up to 10 carbon atoms or aliphatic carbonates having up to 10 carbon atoms. The use of such mixtures for easily degradable, decomposable polyamide packages is also claimed, in particular in the form of films or thin walled injection moulded parts for (food) packaging.

Decomposable packing material

The invention relates to thermoplastic polyurethanes modified with segmented siloxane block copolymers which are based on relatively high molecular weight dihydroxy compounds, diisocyanates, and difunctional chain extenders. The application also relates to their use in the medical field, and particularly as a catheter material.

Thermoplastic polyurethanes modified by siloxane block copolymers

Immunodiagnostic tests in which enzymes or antibodies are bound to porous carrier materials can be carried out by employing as porous carrier materials macroporous polymer membranes which are prepared by (a) dispersing an insoluble filler in a solution which contains at least two incompatible polymers in amounts which lead to phase separation in the solution, resulting in a homogeneous casting solution, and (b) applying this solution to a support and carrying out a precipitation coagulation.

Method for carrying out immunodiagnostic tests

The present invention relates to thermoplastic foams in which .beta.-ketocarboxylic acids, .beta.-ketocarboxylic acid esters or tert.-butyl esters of organic acids are used as the foaming agents.

Recyclable thermoplastic foam with a high glass transition temperature II

This invention relates to a multilayer organochlorine-free tubular casing consiting of

Tubular casing with an organochlorine-free coating impermeable to oxygen

The invention relates to segmented N-alkyl polyurethane amides having an average molecular weight of 5,000 to 250,000, to a process for their production and to their use for the production of materials which may be used in the medical field.

Segmented N-alkyl polyurethane amides

The present invention is directed to pure polyurethanes which are biocompatible. These pure polyurethanes comprise the reaction product of:

Pure, in particular catalyst-free polyurethanes

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Krefeld, Germany

Rolf Dhein