公开(公告)号：US20240092000A1

公开(公告)日：2024-03-21

申请号：US17768500

申请日：2020-10-13

申请人： BASF SE

发明人： Reinhard JAKOBI ,  Angelika HOMES ,  Susanne ZEIHER ,  Daniel LEUTZ ,  Natascha Manuela MEIERHOEFER ,  Rafael GIMENEZ CASAT ,  Marcus IMO ,  Sascha Tim SCHWENDY ,  Leonhard ULLRICH

IPC分类号： B29C45/16 ,  B29C45/20 ,  B29C45/50 ,  B33Y80/00

CPC分类号： B29C45/1634 ,  B29C45/20 ,  B29C45/50 ,  B33Y80/00 ,  B29K2995/0021 ,  B29L2031/7132

摘要： Disclosed herein is a process for producing marbled moldings, where a first molding compound and at least one further molding compound are injected from an injection unit of a screw injection molding machine into an injection mold,



where the injection unit includes a barrel, a screw having a screw tip and a nozzle where the screw is rotatable and is disposed in the barrel so as to be movable between a forward position and a backward position, with a smaller distance between the screw tip and the nozzle in the forward position than in the backward position,
and where the first molding compound includes a first polymer compound and a first colorant, and the at least one further molding compound includes a further polymer compound and optionally at least one further colorant.




Further disclosed herein is an apparatus for production of marbled moldings, and a process for producing the apparatus.

公开(公告)号：US20200156283A1

公开(公告)日：2020-05-21

申请号：US16634602

申请日：2018-07-31

申请人： BASF SE

发明人： Jordan Thomas KOPPING ,  Lothar WELLER ,  Felix Arndt VOLKMANN ,  Sebastian Mathias SCHILLO ,  Daniel LEUTZ

IPC分类号： B28B1/00 ,  B22F3/00 ,  C04B35/634 ,  C04B35/628

摘要： The invention relates to a process for producing a three-dimensional green body by a fused filament fabrication process employing at least one filament, which comprises a core material (CM) coated with a layer of a shell material (SM), and a three-dimensional extrusion printer (3D printer). The three-dimensional extrusion printer 0 contains at least one nozzle and at least one mixing element. The invention further relates to three-dimensional objects and an extruded strand obtained by the process.