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公开(公告)号:US20200181333A1
公开(公告)日:2020-06-11
申请号:US16681914
申请日:2019-11-13
发明人: Weibing Teng , Malvika Bihari , Gerould Harding
IPC分类号: C08G77/455 , B29C64/118 , C08G77/448 , C08L79/08
摘要: A core-shell filament useful for fused filament fabrication includes a core, and a shell surrounding and in contact with the core. The core contains a block polyetherimide-polysiloxane. The shell contains a polyetherimide. When the filament is used in fused filament fabrication for printing a three-dimensional article, the core material remains surrounded by shell material. So, the printed article exhibits good interlayer adhesion provided by the shell material, and good ductility provided by the core material.