Basf Aktiengesellschaft

Basf Se Corporation

Christoph Plachetta

Horst Reimann

Eckhard M Koch

Hans-Peter Weiss

Gunter Pipper

Gerd Blinne

Brigitte Gareiss

Petra Baierweck

Peter Steiert

Walter Goetz

Walter Betz

Karlheinz Ulmerich

Klaus Muehlbach

Hermann Gausepohl

Erhard Seiler

Graham E McKee

Dietrich Lausberg

Klaus Boehlke

Christof Taubitz

Thomas Heitz

Rainer Theysohn

Manfred Knoll

Martin Welz

Karl Schlichting

Franz G Mietzner

Hans-Georg Braun

Jens Becker

Thomas Sauer

Achim Gerstlauer

Manfred Heym

Reinhard Lang

Hans-Harald Hünger

Klaus Muhlbach

Robert Weiβ

Manfred Heckmann

Uwe Wolf

Theresa A Bright

Hans-Peter Beringer

Karl Hahn

A process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids, in which lactams together with salts of diamines and dicarboxylic acids are passed from the top downward through a vertical polymerization tube at polyamide-forming temperatures, which comprises

Process for continuously preparing copolyamides from lactams and salts of diamines and dicarboxylic acids

Disclosed is a method for producing a polyamide containing titanium dioxide pigments. Said method is characterized by the fact that titanium dioxide pigments are dispersed in an initial mixture containing water and caprolactam by means of a device comprising a dispersion chamber, a disk-shaped rotor that is disposed inside said dispersion chamber, a stator that is provided with radial openings, is arranged within the dispersion zone of the dispersion chamber, and is connected to the rotor, a substance inlet located on each side of the rotor, preferably with a respective axial duct section such that the two flows of substance are combined in the peripheral edge area of the rotor disk, and a product outlet which is placed on the outer edge of the dispersion zone of the dispersion chamber, by feeding the titanium dioxide pigments to the dispersion chamber through one of said substance inlets while feeding the initial mixture containing water and caprolactam to the dispersion chamber through the other of said substance inlets, whereby a product mixture containing water, caprolactam, and the used titanium dioxide pigment is obtained via the product outlet, and the product mixture is polymerized so as to obtain a polyamide containing titanium dioxide pigments. Also disclosed are polyamides obtained according to the inventive method and the use of such polyamides as a masterbatch.

Production of a titania-pigmented polyamide

Stabilized polyester molding compositions

Flameproofed thermoplastic molding materials contain

Flameproofed thermoplastic molding materials

Thermoplastic molding materials contain, as essential components,

Toughened partly aromatic copolyamides

Flameproofed thermoplastic molding materials are obtainable by mixing from 20 to 70% by weight of a mixture of carbonates of metals of the 2nd main group of the Periodic Table of Elements in a melt of from 10 to 80% by weight of a polyester prepolymer having a viscosity number of from 40 to 100 ml/g and subsequently carrying out solid-phase postcondensation.

Flameproofed thermoplastic polyesters

Flameproofed thermoplastic copolyester molding materials

Flameproofed thermoplastic molding materials are obtainable by mixing

Flameproofed theroplastic molding materials based on polyamides

Thermoplastic molding materials containing inorganic subgroup metal salts

Partly aromatic copolyamides contain as essential components

Partly aromatic copolyamides of reduced triamine content

Thermoplastic molding compositions contain as essential components

Impact modifying rubber and partly aromatic copolyamides

Partly aromatic copolyamide of reduced triamine content

Polypropylene/polyamide molding compositions, suitable in particular for producing moldings, advantageously consist of, in each case based on 100 parts by weight of the molding composition,

Thermoplastic polypropylene/polyamide molding composition

Flameproofed thermoplastic molding compositions contain

Flameproofed thermoplastic molding compositions based on phlegmatized

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Limburgerhof, Germany

Christoph Plachetta