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Publication numberWO2001059191 A1
Publication typeApplication
Application numberPCT/JP2001/000792
Publication dateAug 16, 2001
Filing dateFeb 5, 2001
Priority dateFeb 10, 2000
Also published asCN1401021A, EP1270775A1
Publication numberPCT/2001/792, PCT/JP/1/000792, PCT/JP/1/00792, PCT/JP/2001/000792, PCT/JP/2001/00792, PCT/JP1/000792, PCT/JP1/00792, PCT/JP1000792, PCT/JP100792, PCT/JP2001/000792, PCT/JP2001/00792, PCT/JP2001000792, PCT/JP200100792, WO 0159191 A1, WO 0159191A1, WO 2001/059191 A1, WO 2001059191 A1, WO 2001059191A1, WO-A1-0159191, WO-A1-2001059191, WO0159191 A1, WO0159191A1, WO2001/059191A1, WO2001059191 A1, WO2001059191A1
InventorsYasuhiro Tada, Masayuki Hino, Toshiya Mizuno
ApplicantKureha Kagaku Kogyo K.K.
Export CitationBiBTeX, EndNote, RefMan
External Links: Patentscope, Espacenet
High-strength polyester-amide fiber and process for producing the same
WO 2001059191 A1
Abstract
A high-strength polyester-amide fiber made of a polyester-amide copolymer, characterized in that in dynamic viscoelastometry the fiber has a main dispersion peak at a temperature higher by at least 10C than the temperature of the main dispersion peak of a nonoriented object made of the polyester-amide copolymer; and a process for producing high-strength polyester-amide fibers which comprises a series of steps of spinning a melt of a polyester-amide copolymer and immediately solidifying the resultant filament by cooling in an inert cooling medium having a temperature of 20C or lower to thereby obtain a noncrystalline unstretched yarn, heightening the crystallinity of the unstretched yarn to 10 to 30 wt.%, and stretching the resultant unstretched yarn having a crystallinity of 10 to 30 wt.% in one or more steps so as to result in an overall stretch ratio of 4.5 or higher.
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
JPH07173716A * Title not available
JPS54120727A * Title not available
US5446109 *Feb 23, 1994Aug 29, 1995Teijin LimitedPolyamide/aliphatic polyester block copolymer, process for the production thereof, and blend containing the same
US5644020 *May 10, 1996Jul 1, 1997Bayer AktiengesellschaftThermoplastically processible and biodegradable aliphatic polyesteramides
Classifications
International ClassificationC08G69/44, C08L101/16, D01F6/82
Cooperative ClassificationD01F6/82
European ClassificationD01F6/82
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