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Mie Kamiyama, Miyuki Numata: Islands-in-sea type composite fiber and process for producing the same. Teijin Fibers, Sughrue Mion PLLC, November 24, 2009: US07622188 (42 worldwide citation)

The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the ...


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Mie Kamiyama, Miyuki Numata: Islands-in-sea type composite fiber and process for producing same. Teijin Fibers, Sughrue Mion PLLC, March 22, 2011: US07910207 (33 worldwide citation)

The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the ...


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Hironori Goda, Miyuki Numata, Mie Kamiyama, Nobuyuki Yamamoto, Tamio Yamamoto: Method of producing islands-in-sea type composite spun fiber. Teijin Fibers, Sughrue Mion PLLC, March 6, 2012: US08128850

The method of producing an islands-in-sea type composite spun fiber having an island component diameter of 1 μm or less according to the present invention comprises drawing (superdrawing) with a total draw ratio of from 5 to 100 an undrawn islands-in-sea type composite spun fiber having been prepare ...


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Mie Kamiyama, Miyuki Numata: Island-in-sea type composite fiber and process for producing the same. Sughrue Mion Pllc, August 23, 2007: US20070196649-A1

The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the ...


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Mie Kamiyama, Miyuki Numata: Islands-in-sea type composite fiber and process for producing same. Teijin Fibers, Sughrue Mion Pllc, February 4, 2010: US20100029158-A1

The islands-in-sea type composite fiber of the present invention comprises a sea part containing an easily soluble polymer and 100 or more island parts containing a hardly soluble polymer, per fiber. In a cross-sectional profile of the composite fiber, each of the island parts has a thickness in the ...


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Hironori Goda, Miyuki Numata, Mie Kamiyama, Nobuyuki Yamamoto, Tamio Yamamoto: Method of producing islands-in-sea type composite spun fiber. Teijin Fibers, Sughrue Mion Pllc, February 12, 2009: US20090042031-A1

The method of producing an islands-in-sea type composite spun fiber having an island component diameter of 1 μm or less according to the present invention comprises drawing (superdrawing) with a total draw ratio of from 5 to 100 an undrawn islands-in-sea type composite spun fiber having been prepare ...


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