| 摘要 |
<p>The present invention is directed to a process for forming a plurality of multi-layered filaments from multiple thermoplastic synthetic polymers and an apparatus containing a melt spinning beam (1) which comprises multiple polymer inlet passages (2, 4) each communicating with separate multiple coat hanger distribution manifolds (6, 8), separate filters (10, 12) connected downstream of each coat hanger distribution manifold (6, 8), a combining manifold (13) connected downstream of said filters (10, 12) and spinneret orifices (14) connected downstream of said combining manifold (13) for spinning of said multi-layered filaments.</p> |
