Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1992-06-05
1993-10-26
Simmons, David A.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
26417713, 264DIG26, 425130, 425462, 425463, B29C 4700, D01D 500
Patent
active
052560503
ABSTRACT:
An apparatus for spinning bicomponent sheath/core filaments having a distributor plate and spinnerette and a shim positioned between the distributor plate and spinnerette to effect a controlled pressure drop of the sheath polymer material. In particular, the distributor plate and spinnerette each have a plurality of spaced core polymer flow passages and sheath polymer passages wherein the respective core polymer flow passages are axially aligned and the respective sheath polymer flow passages are aligned. The shim is positioned between the spinnerette and distributor plate to control the sheath polymer flow from the outlet of the distributor sheath polymer flow passages to the inlet of each spinnerette core polymer flow passage separately. Producing sheath/core bicomponent fibers using this apparatus results in fibers having concentric sheath/core configurations and increased throughput.
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Hoechst Celanese Corporation
Matney, Jr. William J.
McCann Philip P.
Simmons David A.
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