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1. (WO2001002631) POLYURETHANEUREA ELASTIC FIBER

Pub. No.:    WO/2001/002631    International Application No.:    PCT/KR2000/000678
Publication Date: Fri Jan 12 00:59:59 CET 2001 International Filing Date: Fri Jun 30 01:59:59 CEST 2000
IPC: D01F 1/10
D01F 6/70
Applicants: KOLON INDUSTRIES, INC.
KWON, Il, Cheon
RYU, Seok, Chul
HUH, Hyung, Don
Inventors: KWON, Il, Cheon
RYU, Seok, Chul
HUH, Hyung, Don
Title: POLYURETHANEUREA ELASTIC FIBER
Abstract:
This invention relates to a polyurethaneurea elastic fiber of which the weatherability is excellent and the preparing method thereof. The invention prepares the polyurethaneurea elastic fiber by adding the formamidine type ultraviolet absorber of formula I to the spinning dope and the strength maintenance rate of the polyurethaneurea elastic fiber is over 90 % after being left for 24 hours at the Fade-O-Meter in which the sunshine carbon arc is installed, wherein, R1 and R2 represent an each alkyl group of 1 to 5 carbon atoms.