发明名称 |
Multifilament yarns and methods of making |
摘要 |
The present invention is directed to processes for the manufacture of multifilament yarn, including the steps of extruding multifilaments of a polymer containing at least mole 85 percent L-lactide and not more than 15 mole percent glycolide, spinning the extruded multifilaments to form a spun yarn, passing the spun multifilament yarn through an orientation roll heated at a temperature of less than 98 DEG C and drawing the spun multifilament yarn to a draw ratio of at least 4:1 to form an oriented multifilament fiber, annealing the oriented multifilament yarn at a temperature greater than that of the orientation roll, and redrawing the annealed, oriented multifilament yarn by at least 10 percent at a temperature lower than the temperature of annealing.
|
申请公布号 |
EP1205586(A1) |
申请公布日期 |
2002.05.15 |
申请号 |
EP20010308405 |
申请日期 |
2001.10.02 |
申请人 |
ETHICON, INC. |
发明人 |
ANTAL, ATTILA;CHEN, GAOYUAN G.;EGIDIO, DOMINICK;TIANO, ANTHONY;WALKER, EDWARD |
分类号 |
A61L17/12;D01F6/84;(IPC1-7):D01F6/84 |
主分类号 |
A61L17/12 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|