Process for producing stabilized polyamides

• Main Authors: ZIMMERMANN, FRANZ, ISTEL, ERICH
• Format: Patent
• Language: English; French; German
• Published: 22.07.1987
• Edition: 4
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WORKING-UP

Stabilisierte Formkörper aus Polyamiden werden unter Verwendung eines Kupfer-(I)-halogenides und eines molaren Überschusses eines Alkali- oder Erdalkalihalogenids dadurch in einfacher Weise hergestellt, daß man Kupfer-(I)-halogenid und Alkali- oder Erdalkalihalogenid mit Caprolactam vermischt, das Gemisch polymerisiert, die Schmelze des Stabilisatorkonzentrats zu einem Granulat verarbeitet und zusammen mit dem zu stabilisierenden, granulierten Polyamid zu Formkörpern verarbeitet. Stabilized shaped articles of polyamides are prepared in a simple manner, using a copper-I halide and a molar excess of an alkali or alkaline earth metal halide, by mixing copper(I)-halide and alkali or alkaline earth metal halide with caprolactum, polymerizing the mixture, granulating the melt of the stabilizer concentrate and processing the granules together with the granulated polyamide which is to be stabilized, to give shaped articles.