PREPARATION OF HIGH-MOLECULAR-WEIGHT POLYAMIDE 6

The prepn. of high mol.wt. polyamide 6 with a relative viscosity greater than 5.5 comprises the hydrolytic polymerisation of caprolactam to which a carboxylic acid contg. at least two carboxyl gps., followed by the post-condensation of the precursor in the solid phase.

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Bibliographische Detailangaben
Hauptverfasser:	KARUSUTENNYOZEFU IDERU, HERUMUUTO SHIYURUTE, EDOGAA OSUTORININGU, BERUNAA NIIRINGAA, ANDOREASU GITEINGAA
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	The prepn. of high mol.wt. polyamide 6 with a relative viscosity greater than 5.5 comprises the hydrolytic polymerisation of caprolactam to which a carboxylic acid contg. at least two carboxyl gps., followed by the post-condensation of the precursor in the solid phase.