发明名称 |
Process for the production of stabilized acrylic fibers which are particularly suited for thermal conversion to carbon fibers |
摘要 |
An improved process for the relatively rapid thermal stabilization of a multifilamentary acrylic fibrous material in the substantial absence of filament coalescence is provided. The fibrous material is initially contacted with a solution of hydroxylamine (as described), and subsequently with a solution of ammonium permanganate, calcium permanganate, magnesium permanganate, or mixtures thereof (as described). The resulting fibrous material which possesses a chemically altered structure is heated in an oxygen-containing atmosphere until a thermally stabilized acrylic fibrous material is formed which is capable of undergoing carbonization and is non-burning when subjected to an ordinary match flame.
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申请公布号 |
US4364916(A) |
申请公布日期 |
1982.12.21 |
申请号 |
US19810311131 |
申请日期 |
1981.10.14 |
申请人 |
CELANESE CORPORATION |
发明人 |
KALNIN, ILMAR L.;BRECKENRIDGE, JR., GEORGE J.;DIEDWARDO, ANDREW H.;RHODES, JOHN M. |
分类号 |
D01F9/22;(IPC1-7):D01F9/22 |
主分类号 |
D01F9/22 |
代理机构 |
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代理人 |
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地址 |
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