Invention Grant
- Patent Title: Core-sheath filaments and methods of printing an adhesive
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Application No.: US16767330Application Date: 2019-02-08
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Publication No.: US12104288B2Publication Date: 2024-10-01
- Inventor: 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
- Applicant: 3M INNOVATIVE PROPERTIES COMPANY
- Applicant Address: US MN St. Paul
- Assignee: 3M Innovative Properties Company
- Current Assignee: 3M Innovative Properties Company
- Current Assignee Address: US MN St. Paul
- Agent Philip P. Soo
- International Application: PCT/US2019/017162 2019.02.08
- International Announcement: WO2019/164678A 2019.08.29
- Date entered country: 2020-05-27
- Main IPC: D01F8/10
- IPC: D01F8/10 ; B33Y30/00 ; B33Y50/02 ; C09J7/38 ; B29C64/118 ; B29C64/209 ; B33Y10/00 ; B33Y70/10 ; C09J7/10 ; D01D5/34

Abstract:
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.
Public/Granted literature
- US20210002793A1 CORE-SHEATH FILAMENTS AND METHODS OF PRINTING AN ADHESIVE Public/Granted day:2021-01-07
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