公开(公告)号：DE2560019B1

公开(公告)日：1980-05-08

申请号：DE2560019

申请日：1975-10-24

Applicant: DEGUSSA

Inventor： ROTHBUEHR LOTHAR DR ,  SROKA WERNER DR ,  FRITZ WALTER

IPC: C10G31/09 ,  C10G31/10 ,  C10C3/08

公开(公告)号：DE2333079A1

公开(公告)日：1975-01-23

申请号：DE2333079

申请日：1973-06-29

Applicant: DEGUSSA

Inventor： ENGEL CLAUS RICHARD DR ,  LINKE HEINZ DR ,  ROTHBUEHR LOTHAR DR ,  SROKA WERNER DR ,  WESTLINNING HERMANN DR ,  VOGT JES DIPL-ING DR

IPC: B29B13/00 ,  B29B7/00 ,  B29B7/60 ,  B29B7/72 ,  B29B9/00 ,  B29C47/00 ,  B29C47/10 ,  B29C48/395 ,  C08J3/22

Abstract: 1468853 Carbon black-filled thermoplastics DEUTSCHE GOLD-UND SILBER-SCHEIDEANSTALT 12 June 1974 [29 June 1973] 26031/74 Heading C3P Carbon black is incorporated in a thermoplastics material by a process which comprises adding the carbon black to the thermoplastics material in a continuous screw extruder at at least two points lying one behind the other in the delivery direction. Plastics material and part of the carbon black may be introduced together at a first inlet, and the distance between inlets may be 2 to 6, preferably 3 to 5 times the diameter of the kneader screw. The process may be used to produce concentrates which may be diluted with further plastics material. Examples describe the preparation of compositions of carbon black with (1 to 4) polyethylene, (2) polypropylene and (3) polystyrene.