Plastic and nonmetallic article shaping or treating: processes – Forming continuous or indefinite length work – Layered – stratified traversely of length – or multiphase...
Patent
1997-04-11
1998-12-15
Tentoni, Leo B.
Plastic and nonmetallic article shaping or treating: processes
Forming continuous or indefinite length work
Layered, stratified traversely of length, or multiphase...
26417217, 26417218, D01D 534, D01F 804, D01F 814
Patent
active
058492321
ABSTRACT:
A process for preparing highly oriented undrawn core-sheath type conjugated polyester fibers including the step of spinning a polyester as the sheath polymer and a polymer having a larger gradient of elongational viscosity with the temperature than that of the sheath polymer as a core polymer at a spinning speed of about 4000 to 12000 m/min.
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"Fiber Structure Formation in High-Speed Melt Spinning of Sheath-Core Type Biocomponent Fibers," Takeshi Kikutani et al, Sen-I Gakkaishi, vol. 51, pp. 408-415 (May 8, 1995).
Fukuhara Mototada
Kikutani Takeshi
Kishiro Akira
Ochi Takashi
Taniguchi Atsushi
Miller Austin R.
Tentoni Leo B.
Toray Industries Inc.
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