Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1994-09-07
1996-09-17
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
26417214, 26417215, 26417217, 26417218, D01D 5253, D01F 806, D01F 812, D01F 814
Patent
active
055565891
ABSTRACT:
The invention is directed to a device for spinning fibers, especially bicomponent fibers having a sheath/core configuration. The device has, in a preferred embodiment, disposed in the spinneret orifices a grooved pin with an axial bore (a hollow pin). A polymer distribution assembly is provided for directing separate sheath and core compositions to the grooves and the bore, respectively, such that the sheath and core compositions are co-spun from the spinneret orifice. The device can be easily disassembled and a different pin configuration inserted to alter the geometry and/or ratio of the sheath and/or core sections of the fiber.
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Abstract of Japan 54-125,717 (Published Sep. 29, 1979).
C. J. Wust, et al. "Fibers (Olefin)", Kirk-Othmer Encyclopedia of Chemical Technology (4th Ed. 1994).
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European Search Report (dated Jan. 18, 1996).
Hercules Incorporated
Kuller Mark D.
Ruben Bradley N.
Tentoni Leo B.
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