Plastic article or earthenware shaping or treating: apparatus – Means feeding fluent stock from plural sources to common... – Extrusion shaping means
Patent
1996-05-13
1998-12-22
Woo, Jay H.
Plastic article or earthenware shaping or treating: apparatus
Means feeding fluent stock from plural sources to common...
Extrusion shaping means
26417217, 425192S, 425198, 425200, 4253782, 4253822, 425463, D01D 406
Patent
active
058515623
ABSTRACT:
A multiplate spin pack receives metered molten polymer and metered amounts of additive components selectively proportioned to produce desired characteristics in extruded fiber. The additive components are mixed together and blended with the polymer by passage through a pattern of mixer channels formed in opposed faces of spin pack mix plates immediately upstream of the spinning orifices of a spinneret. Mixing is produced by splitting the fluids into multiple paths and repeatedly converging the paths into boundary layer contact. Short flow paths of mixed polymer minimizes time and waste in change over procedures.
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Haggard Jeff S.
Norcott Bryan
Hills, Inc.
Leyson Joseph
Woo Jay H.
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