发明名称 |
High speed melt spinning of fluoropolymer fibers |
摘要 |
The processes and apparatus of the present invention concerns melt spinning high viscosity fluoropolymers into single filaments or multi-filament yarns at high spinning speeds, the melt spinning being carried out at a temperature which is at least 90° C. greater than the melting point of the polymer or in the case of perfluoropolymer, at a temperature of at least 450° C., and the yarns produced by the process, wherein the filaments can exhibit an orientation at the surface of the filament no greater than at the core of the filament.
|
申请公布号 |
US6919130(B2) |
申请公布日期 |
2005.07.19 |
申请号 |
US20040854698 |
申请日期 |
2004.05.26 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
TOKARSKY EDWARD WILLIAM;UY WILLIAM CHENG |
分类号 |
D01D4/00;D01D5/08;D01F6/12;D01F6/32;D02G3/38;D02G3/44;(IPC1-7):D01F6/00 |
主分类号 |
D01D4/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|