Invention Grant
- Patent Title: Continuous method for producing a thermally stabilized multifilament thread, multifilament thread, and fiber
-
Application No.: US16476739Application Date: 2017-01-10
-
Publication No.: US11242623B2Publication Date: 2022-02-08
- Inventor: Jens Erdmann , Johannes Ganster
- Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- Applicant Address: DE Munich
- Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- Current Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
- Current Assignee Address: DE Munich
- Agency: Leydig, Voit & Mayer, Ltd.
- International Application: PCT/EP2017/050404 WO 20170110
- International Announcement: WO2018/130268 WO 20180719
- Main IPC: D01D1/04
- IPC: D01D1/04 ; D01D5/12 ; D01D5/16 ; D01F9/22 ; D06M11/38 ; D06M13/248 ; D06M13/405 ; D06M13/418 ; D01F6/38 ; D02J1/22 ; D02J13/00 ; D01D5/08 ; D06M10/00
Abstract:
The invention relates to a method for thermally stabilizing melt-spun PAN precursors. For this purpose, the invention provides a continuous method for producing a thermally stabilized multifilament thread made of a meltable copolymer of polyacrylonitrile (PAN), wherein a pre-stabilized multifilament thread is thermally stabilized and in the process at least temporarily stretched. The invention additionally relates to a thermally stabilized multifilament thread which can be obtained according to a corresponding method and to a carbon fiber which is made of the correspondingly thermally stabilized multifilament thread.
Information query
