公开(公告)号：US20210002793A1

公开(公告)日：2021-01-07

申请号：US16767330

申请日：2019-02-08

申请人： 3M INNOVATIVE PROPERTIES COMPANY

发明人： Eric O. NYARIBO ,  Thomas Q. CHASTEK ,  Robert D. WAID ,  Ross J. DeVOLDER ,  Jacob D. YOUNG ,  Shaun M. WEST ,  Mikhail A. BELKIN ,  Joseph C. DINGELDEIN ,  Jay A. ESCH ,  Mark E. NAPIERALA

IPC分类号： D01F8/10 ,  C09J7/38 ,  B33Y30/00 ,  B33Y50/02

摘要： The present disclosure provides a core-sheath filament. The core-sheath filament includes an adhesive core and a non-tacky sheath, wherein the sheath exhibits a melt flow index of less than 15 grams per 10 minutes. The present disclosure also provides a method of printing an adhesive. The method includes a) melting a core-sheath filament in a nozzle to form a molten composition, and b) dispensing the molten composition through the nozzle onto a substrate. Steps a) and b) are carried out one or more times to form a printed adhesive. The core-sheath filament includes an adhesive core and a non-tacky sheath. Further, methods are provided, including receiving, by a manufacturing device having one or more processors, a digital object comprising data specifying an article; and generating, with the manufacturing device by an additive manufacturing process using a core-sheath filament, the article including a printed adhesive based on the digital object. A system is also provided, including a display that displays a 3D model of an article; and one or more processors that, in response to the 3D model selected by a user, cause a 3D printer to create a physical object of an article including a printed adhesive, using a core-sheath filament.