发明名称 |
DISPERSIONSSPINNEN VON KERN-SCHALE-FLUORPOLYMEREN |
摘要 |
<p>A process is disclosed for dispersion spinning non-melt-processible fluoropolymer fiber in which a mixture of an aqueous dispersion of non-melt-processible fluoropolymer particles and an aqueous solution of a matrix polymer is formed. The non-melt-processible fluoropolymer particles have an SSG of less than about 2.40 and comprise a core of high molecular weight polytetrafluoroethylene and a shell of lower molecular weight polytetrafluoroethylene or modified polytetrafluoroethylene. The mixture is extruded into a coagulation bath containing a concentration of ions which coagulate the matrix polymer to form an intermediate fiber structure. The intermediate fiber structure is sintered to decompose the matrix polymer and coalesce the non-melt-processible fluoropolymer particles to form the fiber. The present invention also provides a spinning composition useful for the dispersion spinning of non-melt-processible fluoropolymer fiber.</p> |
申请公布号 |
DE602004009833(D1) |
申请公布日期 |
2007.12.13 |
申请号 |
DE20046009833T |
申请日期 |
2004.12.21 |
申请人 |
E.I. DU PONT DE NEMOURS AND CO. |
发明人 |
JONES, CLAY WOODWARD |
分类号 |
D01F6/48;C08K3/00;D01F6/12 |
主分类号 |
D01F6/48 |
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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