发明名称 |
Process for adjusting the fiber structure of mesophase pitch fibers |
摘要 |
A spinnerette for mesophase pitch includes a spinnerette body with a plurality of mesophase pitch fiber forming channels through it. Each bore includes a capillary bore section at the outlet side of the spinnerette body, a wider diameter counter bore at the inlet side and an entrance between the wider bore and capillary bore sections with the entrance wall defining a relatively flat angle for increasing the proportion of tangential cross-section pitch fibers, as compared with radial cross-section fibers.
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申请公布号 |
US4576811(A) |
申请公布日期 |
1986.03.18 |
申请号 |
US19850755521 |
申请日期 |
1985.07.16 |
申请人 |
E. I. DU PONT DE NEMOURS AND COMPANY |
发明人 |
RIGGS, DENNIS M.;REDICK, HUGH E. |
分类号 |
D01D4/02;D01F9/00;D01F9/145;D01F9/32;(IPC1-7):D01D5/00 |
主分类号 |
D01D4/02 |
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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