MANUFACTURE OF NYLON BLOCK COPOLYMER SYNTHETIC MATTER

The invention relates to a process for the preparation of a nylon block copolymer composition by polymerization of lactam in the presence of a lactam-polymerization catalyst and an activator, characterized in that the activator used is a combination of1. a high molecular weight lactam-terminated act...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	KORUNERISU HENDORIKUSU BURINSEN, YOOZEFU YOHANESU MARIA BONGERUSU, ARUBERUTO AANORUDO BUAN GEENEN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY COMPOSITIONS BASED THEREON MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS THEIR PREPARATION OR CHEMICAL WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a process for the preparation of a nylon block copolymer composition by polymerization of lactam in the presence of a lactam-polymerization catalyst and an activator, characterized in that the activator used is a combination of1. a high molecular weight lactam-terminated activator with a molecular weight of at least 1500, and2. a low molecular weight lactam-terminated activator with a molecular weight of at most 750.The process according to the invention can in particular by used in a reaction injection moulding process, in which liquid reaction component are introduced into a mould where fase polymerization to a moulded object takes place.