Title:
METHOD FOR MANUFACTURING HIGH-SPEED SPINNING POLYURETHANEUREA ELASTIC FIBER
Document Type and Number:
WIPO Patent Application WO/2011/081447
Kind Code:
A2
Abstract:
The present invention relates to polyurethane resin compositions for high-speed spinning spandex fiber. Provided is a method for manufacturing polyurethaneurea elastic fiber using polyols, first diisocyanate, second diisocyanate and a chain extender as a substrate. The first diisocynate and the second diisocynate are one or two or more kinds of organic diisocyanates chosen from aromatic, aliphatic or substituted diisocynates, and the second diisocynate constitutes 2 to 25 mole % of total diisocyanate content. The polyurethaneurea contains 5 mole % or more of aromatic diamines as chain extenders. The polyurethaneurea elastic fiber made by said method has no change in elongation even during high-speed spinning and maintains heat resistance of yarn.
Inventors:
JIN JOONG SEONG
LEE JAE MYUNG
KANG YEON SOO
LEE JAE MYUNG
KANG YEON SOO
Application Number:
PCT/KR2010/009500
Publication Date:
July 07, 2011
Filing Date:
December 29, 2010
Export Citation:
Assignee:
HYOSUNG CORP
JIN JOONG SEONG
LEE JAE MYUNG
KANG YEON SOO
JIN JOONG SEONG
LEE JAE MYUNG
KANG YEON SOO
International Classes:
D01F6/70; C08F18/06; C08L75/00
Foreign References:
| KR20080005538A | 2008-01-14 | |||
| KR100227004B1 | 1999-10-15 | |||
| US20070059523A1 | 2007-03-15 | |||
| US4224432A | 1980-09-23 |
Attorney, Agent or Firm:
CHO, CHUL HYUN (KR)
조철현 (KR)
조철현 (KR)
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