发明名称 |
Method of making hollow bicomponent filaments |
摘要 |
Novel bicomponent fibers have a sheath domain and an core domain which is embedded entirely within, and thereby completely surrounded by, the polyamide domain. The core domain is annular and defines a longitudinally extending central void. The preferred bicomponent fibers have a sheath-core structure wherein the polyamide domain constitutes the sheath and a fiber-forming polyolefin polymer constitutes the core. The preferred trilobal bicomponent fibers will exhibit a modification ratio of between 2 to 4, an arm angle of between 7 DEG to about 35 DEG , and a total cross-sectional void area between about 3 and about 10 percent. Each lobe of the fiber may optionally contain a lobal void space which, if present, is preferably radially elongate in cross-section.
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申请公布号 |
US6017478(A) |
申请公布日期 |
2000.01.25 |
申请号 |
US19980164755 |
申请日期 |
1998.10.01 |
申请人 |
BASF CORPORATION |
发明人 |
KENT, DIANE R.;HOYT, MATTHEW B.;HELMS, JR., CHARLES F. |
分类号 |
D01D5/24;D01D5/253;D01D5/30;D01D5/34;D01F1/10;D01F8/06;D01F8/12;(IPC1-7):D01D5/24 |
主分类号 |
D01D5/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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