发明名称 |
Bicomponent fibers having contaminant-containing core domain and methods of making the same |
摘要 |
Novel bicomponent fibers have a polyamide domain and a contaminant-containing polymer domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The preferred bicomponent fibers have a sheath-core structure wherein the polyamide domain constitutes the sheath and the contaminant-containing polymer constitutes the core. Surprisingly, even though the core is formed of a contaminant-containing polymer (which is difficultly spinnable), the bicomponent fibers are readily spinnable and exhibit properties which are comparable in many respects to fibers formed from 100% polyamide. Preferably, the fibers are concentric sheath-core bicomponent fibers having an uncontaminated nylon-6 sheath and a core formed from nylon-6 having a relatively high level of contamination in the form of the cyclic dimer of caprolactam and/or nylon-6 derived from colored regenerated post-consumer nylon carpet fibers.
|
申请公布号 |
US6004674(A) |
申请公布日期 |
1999.12.21 |
申请号 |
US19980216677 |
申请日期 |
1998.12.18 |
申请人 |
BASF CORPORATION |
发明人 |
KENT, DIANE R.;HOYT, MATTHEW B.;ILG, OTTO M.;QUEEN, MORRIS K. |
分类号 |
D01D5/253;D01F8/12;(IPC1-7):D02G3/00 |
主分类号 |
D01D5/253 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|