PROCESS FOR PRODUCING ASSORTMENTS OF POLYAMIDE 6

The invention relates to a process for producing assortments of polyamide 6 with increased viscosity, additivated with graphite and thermally stabilized by compounding. The process consists in compounding polyamide 6 in an extruder, said polyamide having a relative viscosity of 2.4...2.9 and a conte...

Ausführliche Beschreibung

Gespeichert in:

Bibliographische Detailangaben
Hauptverfasser:	HARABAGIU LIGIA, MURARIU IULIAN MARIUS, BOTEZATU CECILIA
Format:	Patent
Sprache:	eng ; rum
Schlagworte:	AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING CHEMISTRY COMPOSITIONS BASED THEREON GENERAL PROCESSES OF COMPOUNDING METALLURGY ORGANIC MACROMOLECULAR COMPOUNDS PERFORMING OPERATIONS PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE 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 WORKING-UP
Online-Zugang:	Volltext bestellen
Tags:	Tag hinzufügen Keine Tags, Fügen Sie den ersten Tag hinzu!

Beschreibung
Zusammenfassung:	The invention relates to a process for producing assortments of polyamide 6 with increased viscosity, additivated with graphite and thermally stabilized by compounding. The process consists in compounding polyamide 6 in an extruder, said polyamide having a relative viscosity of 2.4...2.9 and a content of 0.07...015% phosphorus acid as post-polycondensation agent, with a thermal stabilizer agent based on copper salts and graphite and further post-polycondensating at a temperature of 140...190° C. The polyamide 6 is further processed by extrusion. Invenţia se referă la un procedeu de obţinere a unor sortimente de poliamidă 6, cu viscozitate ridicată, aditivată cu grafit şi termostabilizată prin compoundare. Procedeul constă în aceea că se compoundează într-un extruder poliamidă 6, având o viscozitate relativă de 2,4...2,9 şi un conţinut de 0,07...0,15% acid fosforic, drept agent de postpolicondensare, cu un agent de termostabilizare pe bază de săruri de cupru şi cu grafit, după care se postpolicondensează la o temperatură de 140... 190°C. Poliamida 6 obţinută astfel se prelucrează în continuare prin extrudare.