METHOD FOR PRODUCING DYED MOULDING MATERIALS

A CONTINUOUS PROCESS FOR PREPARING PIGMENTED THERMOPLASTIC MOLDING COMPOSITIONS IN AN EXTRUDER, COMPRISES I) IN A FIRST ZONE A) METERING IN FROM 10 TO 99.999 % BY WEIGHT OF A THERMOPLASTIC POLYMER INTO AN EXTRUDER AND II) IN A SUBSEQUENT ZONE AT TEMPERATURES BELOW THE RESPECTIVE GLASS TRANSITION TEM...

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Bibliographische Detailangaben
Hauptverfasser:	HERMANN BRANDT, BERND BRIAN, DIETER GREB, HELMUT HEEL, HERBERT GUTSCHE, RAINER ANDERLIK, PETRA BAIERWECK, HERBERT MOSNER, NORBERT KREB
Format:	Patent
Sprache:	eng
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 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
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Zusammenfassung:	A CONTINUOUS PROCESS FOR PREPARING PIGMENTED THERMOPLASTIC MOLDING COMPOSITIONS IN AN EXTRUDER, COMPRISES I) IN A FIRST ZONE A) METERING IN FROM 10 TO 99.999 % BY WEIGHT OF A THERMOPLASTIC POLYMER INTO AN EXTRUDER AND II) IN A SUBSEQUENT ZONE AT TEMPERATURES BELOW THE RESPECTIVE GLASS TRANSITION TEMPERATURE OF THE THERMOPLASTIC A) B) ADDING FROM 0.001 TO 60 % BY WEIGHT OF A COLORANT AND THEN HEATING THE THERMOPLASTIC/COLORANT MIXTURE IN THE SUBSEQUENT ZONES, HOMOGENIZING THE POLYMER MELT AND EXTRUDING THE RESULTANT MIXTURE.