Bayer Aktiengesellschaft

Other

Mobay Chemical Corporation

Ludwig Bottenbruch

Dieter Freitag

Manfred Schmidt

Hans-Rudolf Dicke

Klaus Reinking

Karl-Heinz Ott

Rudolf Binsack

Karsten J Idel

Erhard Tresper

Volker Eckhardt

Ulrich R Grigo

Peter Bier

Hugo Vernaleken

Volker Serini

Edgar Ostlinning

Walter Heitz

Werner Nielinger

Herbert Eichenauer

Uwe Hucks

Edgar Leitz

Leo Morbitzer

Bernhard Hess

Wolfgang Stix

Heinz-Josef Fullmann

Bernd Peltzer

Hansjochen Schulz-Walz

Hans-Josef Buysch

Hans-Jurgen Kress

Hans-Joachim Traenckner

Wolfgang Alewelt

Josef Merten

Peter Tacke

Karl-Heinrich Meyer

Joachim Genz

Karl-Heinz Kohler

Joachim Doring

Gunther Kampf

Karl Raichle

Harry Rohr

Hannes Von Harpe

Helmut Waldmann

Hans-Dieter Block

Karsten-Josef Idel

Werner Nouvertne

Claus H Wulff

Klaus Kircher

Klaus D Berg

Karl Zabrocki

John W Goossens

Otto Neuner

Udo Rudolph

Harald Medem

Aziz E Sayed

Hermann Brinkmeyer

Ulrich Biskup

HansJochen Schulz-Walz

Christian Lindner

Dieter Wittmann

Rolf-Volker Meyer

Heinrich Alberts

Wolfgang Ebert

Hans Rudolph

Karlfried Wedemeyer

Dieter Margotte

Horst Peters

Hans J Rosenkranz

Dieter Neuray

Gerhard Darsow

Jurgen Kirsch

Joachim Wank

Gunther Weymans

Peter Hohlein

Wolfgang Koch

Wolfgang Cohnen

Frank Gerald Kleiner

Johann Grolig

Aziz El Sayed

Eckart Reese

Wolfgang Jakob

Robert Becker

Aziz El-Sayed

Klaus-Christian Paetz

Frank Druschke

Wolfgang Gau

Claus Burkhardt

Erich Hammerschmidt

Franz Alfes

Lothar Fleiter

Herbert Pelousek

Franz Weider

Gebhard Rauleder

Helmut Korber

Paul J Mayska

Alfred Jung

Klaus G Wilms

Oskar Walter

Birger Knickel

Rudolph Binsack

Hans Hespe

Paul Schiller

The invention relates to a process for the preparation of optionally branched, high molecular weight polyarylene sulphides with melt viscosities which can be established at defined values and low corrosion. These polyarylene sulphides are obtained by reacting alkali metal sulphides, if appropriate mixed with alkali metal bisulphides and reaction accelerators, with dihalogenoaromatics and, if appropriate, polyhalogenoaromatics, with the addition of particular monohalogenoaromatics as chain stoppers.

Process for preparation of high molecular weight, optionally branched

Trialkylsilyloxy-1,1-diphenyl ethylenes corresponding to general formula I, new polymers produced therewith terminated by aryl trialkylsilyl ether groups or by phenolic hydroxyl groups and a process for the production of these polymers by anionic polymerization ##STR1## in which R.sup.1, R.sup.2 .dbd.H, C.sub.1 -C.sub.4 alkyl, OCH.sub.3,

Trialkylsilyloxy-1,1-diphenyl ethylenes and polymers produced therewith

The invention relates to an anhydrous process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These can be prepared in a polar organic solvent in the absence of water by reaction of dihalogenoaromatics with sodium sulphides and bisulphide or potassium sulphides and bisulphide in the presence of catalysts in a polar organic solvent.

Process for the preparation of high molecular weight, optionally

Highly crystalline, rapidly crystallizing thermoplastic compositions containing:

Rapidly crystallizing polyphenylene sulphide compositions

The invention relates to highly crystalline, rapid-crystallizing, thermoplastic compositions of polyphenylene sulphides and carboxylic acid esters or carbonic acid esters.

Rapid-crystallizing polyphenylene sulphide compositions

This invention relates to a process for the production of aromatic polycarbonates from cyclic aromatic carbonate oligomers in the presence of aprotic organic solvents at low temperatures.

Polymerization of cyclic aromatic oligomers with low temperature aprotic

The invention relates to a process for the production of crystalline, aromatic polyether ketones in lactams as solvent. The polymers produced have a high molecular weight, high thermal stability, high resistance to the effect of chemicals and good mechanical properties.

Process for the production of aromatic polyether ketones

The invention relates to a process for producing dihydroxydiarylalkanes from carbonyl compounds and phenols under high pressure.

Process for producing dihydroxydiarylalkanes

This invention relates to a new thermally stable polyphenylene oxide (PPO) and to its use as thermoplastic material.

End capped thermally stable polyphenylene oxide (PPO)

This invention relates to halogen-free binary mixtures of two fully aromatic polycarbonates each having a disperse solubility of from 18 to 35 (J/ccm).sup.1/2, in which both polycarbonates are of high molecular weight and each contains not more than 70 mol-% of bisphenol A. The invention further relates to the use of these mixtures for optical data stores and to moulded parts produced from the mixtures.

Moulding compounds of polycarbonate mixtures having a high disperse

Aromatic polyesters are prepared by the transesterification of aromatic dicarboxylic acid dialkyl esters with diester derivatives of divalent phenols at temperatures of about 260.degree. to 350.degree. C. with removal of the resulting monocarboxylic acid alkyl ester from the reaction mixture.

Process for the preparation of aromatic polyesters

Trialkylsilyloxy-1,1-diphenyl ethylenes corresponding to general formula I, new polymers produced therewith terminated by aryl trialkylsilyl ether groups or by phenolic hydroxyl groups and a process for the production of these polymers by anionic polymerization ##STR1## in which R.sup.1, R.sup.2 =H, C.sub.1 -C.sub.4 alkyl, OCH.sub.3,

Thermotropic polyester imides having recurrent units corresponding to the following formulae: ##STR1## have excellent dimensional stability under heat and are suitable for the production of moulded articles, filaments, fibres and films.

Solid phase post polymerization condensation of thermotropic polyester

The invention relates to the use of thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether in quantities of 3% by weight to 30% by weight for modifying filsm of other thermoplastics than the thermoplastic homopolycarbonates of 3,3'-dihydroxydiphenyl ether, to a process for modifying films of these other thermoplastics, to the films obtainable by this process and to mixtures containing the homopolycarbonates mentioned and the other thermoplastics.

Use of homopolycarbonates of 3,3'-dihydroxydiphenyl ether for modifying

Thermotropic polyester imides having recurrent structural units corresponding to the following formulae: ##STR1##

Thermotropic polyester imide from N-(3-hydroxy phenyl) trimellitic acid

Growing community of inventors

Krefeld, Germany

Ludwig Bottenbruch