Bayer Aktiengesellschaft

Miles Inc.

Bernhard Schulte

Werner Waldenrath

Dieter Freitag

Willi Dunwald

Hans-Georg Hoppe

Herbert Heidingsfeld

Claus Burkhardt

Volker Serini

Friedemann Muller

Hans-Georg Wussow

Wolfgang Brauer

Hans-Leo Weber

Jurgen Winkler

Rudolf Merten

Uwe Hucks

Ludwig Rottmaier

Wolfgang Jakob

Karl-Heinrich Meyer

Jurgen Lewalter

Willi Meister

Wilfried Zecher

Joachim Wank

Werner Tischer

Hans Kaloff

Hans-Dieter Block

Edgar Ostlinning

Werner Nielinger

Karlheinz Hildenbrand

Wolfgang Kaufhold

Klaus Wehling

Henricus Peerlings

Helmut Schulte

Karl-Heinz Wolf

Werner Kroll

Dittmar Nerger

Alexander Riebel

Heinz-Jurgen Dziurla

Volker Wiskamp

Hans L Weber

Thomas Doege

Philip R Strom-Jensen

J Urgen Winkler

Friedemann M Uller

Wolfgang Br Auer

Karl-Heinrichrich Meyer

A thermoplastic composition comprising aliphatic polyurethane is disclosed. The composition is charactrized in having a post weathering yellow value lower than 20 and good hardness and softening temperature values both before and after weatering for 504 hours in accordance with ISO 4892.

Aliphatic thermoplastic polyurethanes, processes for their preparation and their use

A process for the continuous production of a thermoplastic molding composition containing a mixture of a TPU and a thermoplastic (co)polymer is disclosed. The process comprises

Process for preparing TPU molding compositions

A thermoplastsic molding composition comprising thermoplastic polyurethane resin and about 0.05 to 2 percent of a wax is disclosed. The composition which offers processing advantages, including release and cosmetic properties, is characterized in that the wax contains acylation products of hydroxy groups and of amino groups of amino alcohols.

Melt processable polyurethanes containing wax

A process for the continuous production of a thermoplastic molding composition containing a mixture of TPU and a (co)polymer is disclosed. The process comprises

The invention relates to transparent multi-layer films made from polyamides and polyolefines using copolyamides of .epsilon.-caprolactam together with diamines and dicarboxylic acids.

Multi-layer films made from copolyamides

A method whereby the properties, particularly the recrystallisation temperature, of thermoplastic polyurethane elastomers, particularly those suitable for processing by extrusion, are kept constant during continuous manufacture in screw-type extruding machines by continuously adding substantially straight-chain hydroxyl-terminated polyols having a molecular weight of 500 to 5000, organic diisoicyanates and diol and optionally triol chain-lengthening agents having a molecular weight of 62 to 500, the molar ratio of polyols to chain-lengthening agents being 1:1 to 1:5, and by continuous addition of a catalyst, wherein the recrystallisation temperature is set at a value at least 2.degree. C. below the value for the corresponding TPU manufactured without a catalyst, and when the set recrystallisation temperature is exceeded, the amount of continuously supplied catalyst is increased, whereas when the value falls below, the amount is decreased so as to maintain the set value, the resulting elastomers and use thereof for extrusion.

Process for the continuous production of thermoplastic polyurethane

The present invention is directed to the use of polymer blend films consisting of polycarbonate and polyalkylene terephthalate supports for diagnostic test strips.

Use of polymer blend films as supports for diagnostic test strips

The invention relates to the use of salts of sulfosuccinic acid esters as internal antistatic agents, take-off and winding aids for transparent cast films of polycarbonates, to a process for the production of cast polycarbonate films and to the cast polycarbonate films themselves containing salts of sulfosuccinic acids and also to the use of the new cast polycarbonate films in the electrical field and optical field.

Alkali or alkaline earth salts of sulfosuccinic acid esters as internal

A process for the production of optically isotropic extrusion films is disclosed. Accordingly in a first process step a thermoplsatic resin is extruded to form a film having a thickness below 600 .mu.m. The second process step entails

Process for the production of optically isotropic extrusion films

Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable for preparing printing ribbons, in particular for thermal and electrothermal recording processes.

Printing ribbon comprising polycondensates

This invention relates to carbon-containing moulded bodies based on thermoplastic polycarbonates and thermoplastic polyalkylene terephtalates with an addition of carbon black and graphite and to a process for the production of these moulded bodies.

Moulded bodies containing carbon

A polycarbonate film obtained by dispersing carbon black in a solution of thermoplastic aromatic polycarbonate, producing a cast film, and subsequently stretching the cast film, is characterized in that its elongation at break is greater than that of a corresponding unstretched similarly filled film having an identical thickness.

Stretched polycarbonate films filled with carbon black

Films from aromatic polyesters and from aromatic polyestercarbonates are excellently suitable as electrically insulating films, for example as dielectric for capacitors and as conductor track films.

Use of films of polycondensates

Polyesters having at least 90%, by weight, of recurrent structural units corresponding to the following formula: ##STR1## and characterised by a relative viscosity.eta..sub.rel of from 1.6 to 4.5 (determined at 25.degree. C. in CH.sub.2 Cl.sub.2, c=5 g/l) are suitable for the production of films having highly advantageous performance characteristics, in particular high heat resistance.

High molecular weight polyesters, preparation and use thereof

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Krefeld, Germany

Bernhard Schulte