发明名称 |
EXTRUSION OF POLYMERS |
摘要 |
Processes and apparatus for melt extrusion of polymeric compositions, particularly conductive polymers, in which a gear pump delivers molten polymeric composition to an extrusion orifice. Overfeeding of the composition due to pressure variations is avoided by means of a polymer relief means, preferably a second, smaller gear pump, which removes a portion of the molten composition when the pressure exceeds a selected level. |
申请公布号 |
EP0996529(A1) |
申请公布日期 |
2000.05.03 |
申请号 |
EP19980934325 |
申请日期 |
1998.07.10 |
申请人 |
TYCO ELECTRONICS CORPORATION |
发明人 |
CHU, EDWARD, F.;JORDAN, SUSAN, M.;LAHLOUH, JOHN |
分类号 |
B29C47/50;B29C47/92;(IPC1-7):B29C47/92 |
主分类号 |
B29C47/50 |
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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