Invention Grant
US08969224B2 Sea-island composite fiber, ultrafine fiber, and composite spinneret
有权
海岛复合纤维，超细纤维和复合喷丝头
- Patent Title: Sea-island composite fiber, ultrafine fiber, and composite spinneret
- Patent Title (中): 海岛复合纤维，超细纤维和复合喷丝头
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Application No.: US13521752Application Date: 2011-01-26
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Publication No.: US08969224B2Publication Date: 2015-03-03
- Inventor: Masato Masuda , Akira Kishiro , Joji Funakoshi , Yoshitsugu Funatsu , Seiji Mizukami
- Applicant: Masato Masuda , Akira Kishiro , Joji Funakoshi , Yoshitsugu Funatsu , Seiji Mizukami
- Applicant Address: JP
- Assignee: Toray Industries, Inc.
- Current Assignee: Toray Industries, Inc.
- Current Assignee Address: JP
- Agency: DLA Piper LLP (US)
- Priority: JP2010-018728 20100129; JP2010-202992 20100910
- International Application: PCT/JP2011/051482 WO 20110126
- International Announcement: WO2011/093331 WO 20110804
- Main IPC: D04H1/00
- IPC: D04H1/00 ; D04H3/00 ; D04H13/00 ; D04H5/00 ; D01D4/06 ; D01D5/30 ; D01D5/36 ; D01F8/04 ; D01D5/253
Abstract:
A sea-island composite fiber has an island component which is ultrafine fibers having a noncircular cross-section, the ultrafine fibers being uniform in the degree of non-circularity and in the diameter of the circumscribed circle. The sea-island composite fiber includes an easily soluble polymer as the sea component and a sparingly soluble polymer as the island component, and the island component has a circumscribed-circle diameter of 10-1,000 nm, a dispersion in circumscribed-circle diameter of 1-20%, a degree of non-circularity of 1.2-5.0, and a dispersion in the degree of non-circularity of 1-10%.
Public/Granted literature
- US20120288703A1 SEA-ISLAND COMPOSITE FIBER, ULTRAFINE FIBER, AND COMPOSITE SPINNERET Public/Granted day:2012-11-15
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