公开(公告)号：MY120549A

公开(公告)日：2005-11-30

申请号：MYPI9804028

申请日：1998-09-03

Applicant: BASF AG

Inventor： BRIAN BERND ,  GREB DIETER ,  HEEL HELMUT ,  GUTSCHE HERBERT ,  MOSNER HERBERT ,  BRANDT HERMANN ,  KREB NORBERT ,  BAIERWECK PETRA ,  ANDERLIK RAINER

IPC: C08J3/20 ,  B29C47/10

Abstract: 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.