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Bayer Akteingesellschaft

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Bayer Corporation

Bayeraktiengesellschaft

Bauer Ag

Agfa-gevaert Aktiengsellschaft

Christian Lindner

Karl-Heinz Ott

Karl-Erwin Piejko

Hans-Jurgen Kress

Horst Peters

Hans-Eberhard Braese

Dieter Wittmann

Herbert Eichenauer

Carlhans Suling

Josef Buekers

Rudolf Binsack

Uwe Westeppe

Herbert Bartl

Holger Lutjens

Dieter Freitag

Walter Uerdingen

Friedemann Muller

Jochen Schoeps

Ludwig Trabert

Otto Koch

Volker Damrath

Klaus Konig

Manfred Schreckenberg

Leo Morbitzer

Josef Merten

Hartwig Hocker

Lothar Meier

Edgar Leitz

Siegfried Korte

Jurgen Kirsch

Gerd Fengler

Winfried Paul

Dieter Rempel

Ulrich R Grigo

Werner Nouvertne

Alfred Pischtschan

Friedrich Fahnler

Karl Zabrocki

Helmut Hurnik

Karsten-Josef Idel

Claus H Wulff

Dieter Neuray

Helmut Waniczek

Wolfgang Grape

Helmut Keul

Otto Billinger

Friedrich Kowitz

Dieter Kuhlmann

Bernhard Arnold

Hans-Josef Buysch

Wolfgang Podszun

Thomas Eckel

Klaus Reinking

Hanns-Peter Muller

Adolf Schmidt

Frank Wingler

Gunther Nischk

Joachim Franke

Gunter Arend

Dietrich Hardt

Lothar Liebig

Jurgen Hinz

Heinrich Haupt

Wolfgang Stix

Peter Mues

Ralph Ostarek

Dieter Brokmeier

Karola Brudermanns

Rolf Dhein

John R Sanderson

Ludwig Bottenbruch

Herman J Uytterhoeven

Volker Serini

Wolfgang Bauer

Hartmuth Buding

Joachim Konig

Werner Nielinger

Klaus Kircher

Peter Tacke

Bert Brassat

Bernd Quiring

Alexander Karbach

Wolfgang Nising

Peter R Muller

Robert Horst Bloodworth

Aziz El Sayed

Rolf Kubens

Christian Weber

Harald Oertel

Karl-Heinz Kohler

Joachim Doring

Rudolf Casper

Geza Avar

Harald Selbeck

Gunther Lehnert

Kurt P Meurer

Horst Gruttmann

Hans-Georg Gehrke

Georg Heger

Alfred Jung

Process for pretreating abietic acid derivatives comprising dissolving an abietic derivative in water to form a 2 to 25% by weight solution, adding a base so that the pH of the solution is from 10 to 14 and removing from 0.5 to 25% by weight of the abietic acid derivative originally present in the solution by extraction or steam distillation while maintaining the pH from 10 to 14.

Abietic acid derivatives and their use as emulsifiers

Powdery mixture of from 1 to 99 weight % of a graft polymer of resin-forming monomers on a rubber and from 99 to 1 weight % of a bisphenol and the use thereof for improving chemical materials.

Mixtures of bisphenols and graft polymers

Particulate graft polymers composed of a core (a) of cross-linked diene rubber, a first envelope (b) of a cross-linked acrylate rubber, a second envelope (c) of a copolymer of resin-forming monomers and polyallyl monomers having at least three allyl groups in the molecule, and a third envelope (d) of a copolymer or homopolymer of resin forming monomers.

Thermoplastic moulding compositions with high notched impact strength

Molding compounds of acrylate polymers, optionally graft rubbers and/or optionally resin-like vinyl polymers containing 0.05 to 5% by weight tetrafluoroethylene polymers.

Molding compounds having improved fire behavior

This invention relates to thermoplastic moulding compounds with improved properties, in particular with reduced water absorption and rigidity and improved impact strength, from polyamides A and a thermoplastic resin copolymer B containing at least one (meth)acrylic acid ester of a tertiary alcohol in quantities of up to 35% by weight in addition to the other monomers such as styrene or (meth)acrylic esters. The invention also relates to rigid moulding compounds which are tough at low temperatures and are obtained from polyamides and the thermoplastic resin copolymers defined above and in addition contain a rubber polymer C in quantities of up to 35% by weight.

Thermoplastic moulding compounds of polyamides and resin copolymers

Graft Polymers of a cross-linked copolymer of compounds of formula (I) or (II) ##STR1## and another vinyl compound as graft basis, and a polymerized vinyl group-containing phosphonic acid derivative as graft.

Graft polymers containing phosphorus

Thermoplastic molding compounds of polyalkylene terephthalate, special barium sulfate, particulate graft polymers and, optionally, reinforcing materials are distinguished from known, elastomer-modified polyalkylene terephthalates, particularly polyethylene terephthalates, by improved heat resistance and toughness.

Thermoplastic molding compounds of polyalkylene terephthalate, special

A transparent thermoplastic molding composition containing:

Compatible polymer blends with thermoplastic polycarbonates

Polymer alloys

Polymer alloys of high ageing resistance

Polymer mixtures of high ageing resistance

An improved process for the preparation of .alpha.-methylstyrene polymers by aqueous emulsion polymerization in which a styrene monomer mixture is first polymerized in a quantity of from 0.5 to 8% by weight of the total quantity of monomers and thereafter an .alpha.-methylstyrene monomer mixture is polymerized batchwise or semi-continuously.

Process for the preparation of alpha-methylstyrene polymers

The invention relates to improved polymer blends of polyamides and vinyl polymers containing sulfonamide structural units. Polyamide molding compounds having reduced water absorption and improved dimensional stability coupled with good mechanical properties, such as impact strength and rigidity, minimal discoloration, high heat resistance and migration resistance, are thus obtained.

Polymer blends of polyamides and polymers containing sulfonamide

Graft polymers having graft shells of copolymers of styrenes, .alpha.-methyl styrenes, acrylonitrile, C.sub.1 -C.sub.4 vinyl carboxylic acids, C.sub.1 -C.sub.8 alkyl acrylates and/or alkyl methacrylates, maleic acid derivatives, vinyl(idene) chloride and mixtures thereof on the one hand and monomers corresponding to formula I ##STR1## in which R.sup.1 =H, CH.sub.3,

Thermoplastic graft polymers containing oxetanyl groups

Interpolymers of aromatic polyesters and cross-linked (or partially cross-linked) rubbers and a process for their production in which a mixture of a cross-linked rubber in latex form containing reactive groups and an aqueous solution of an alkali metal or alkaline earth metal diphenolate is reacted with a solution of a dicarboxylic acid halide and/or a carbonyl halide in a water-immiscible solvent so that an aromatic polyester forms at the water/organic solvent phase boundary, which polyester goes over into the organic phase and the rubber at the same time also goes into the organic phase. The interpolymer of rubber and organic polyester thus formed is suitable for the production of moulded articles of all kinds by the methods of thermoplastic shaping such as extrusion and injection moulding.

Interpolymers of aromatic polyesters and rubbers

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Cologne, Germany

Christian Lindner