Invention Grant
- Patent Title: Process and apparatus for the production of yarn
- Patent Title (中): 生产纱线的工艺和设备
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Application No.: US12443825Application Date: 2007-10-30
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Publication No.: US08419989B2Publication Date: 2013-04-16
- Inventor: Christopher William Newton
- Applicant: Christopher William Newton
- Applicant Address: US DE Wilmington US DE Wilmington
- Assignee: Magellan Systems International LLC,E I du Pont de Nemours and Company
- Current Assignee: Magellan Systems International LLC,E I du Pont de Nemours and Company
- Current Assignee Address: US DE Wilmington US DE Wilmington
- International Application: PCT/US2007/082935 WO 20071030
- International Announcement: WO2008/055130 WO 20080508
- Main IPC: B29C47/88
- IPC: B29C47/88

Abstract:
The present invention concerns a process and apparatus for spinning polymer filaments comprising extruding a polymer solution to form one or more filaments into an air gap above a coagulation liquid, where the filaments are subject to strain; forming a downward stream of liquid and filaments by contacting the polymer solution with a coagulation liquid; passing the filaments and liquid through a quench tube; contacting the liquid with a surface such that the downward force of gravity on the liquid does not increase the strain of the filaments in the air gap; and separating the liquid from the filaments.
Public/Granted literature
- US20100072658A1 PROCESS AND APPARATUS FOR THE PRODUCTION OF YARN Public/Granted day:2010-03-25
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