Title:
POLYURETHANE UREA ELASTIC YARN HAVING IMPROVED THERMOSETTING PROPERTY, AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/211006
Kind Code:
A1
Abstract:
The present invention relates to a polyurethane urea elastic yarn having an excellent thermosetting property, and a manufacturing method therefor, the yarn comprising a polyurethane urea, which is a reaction product of a prepolymer and a chain extender, wherein the prepolymer comprises a reaction product of a diisocyanate and a polyol in which a polypropylene glycol having a number average molecular weight (Mn) of 1,000-5,000, 1.7-2.0 functional groups, and a controlled polymerization rate (CPR) of -2.0 to 1.0 are mixed. According to the present invention, the thermosetting property of a polyurethane urea elastic yarn can be improved, and the thermosetting property of a fabric woven together with the polyurethane urea elastic yarn can also be improved. In addition, the present invention can manufacture, with excellent spinnability and productivity, a polyurethane urea elastic yarn having an excellent thermosetting property.
Inventors:
KIM TAE HEON (KR)
KANG YEON SOO (KR)
KANG YEON SOO (KR)
Application Number:
PCT/KR2023/004782
Publication Date:
November 02, 2023
Filing Date:
April 10, 2023
Export Citation:
Assignee:
HYOSUNG TNC CORP (KR)
International Classes:
D01F6/70; D01F6/72; D02G3/32; D02G3/44; D04B1/18
Foreign References:
| KR20060070447A | 2006-06-23 | |||
| KR100307214B1 | 2001-11-30 | |||
| JPH10195159A | 1998-07-28 | |||
| US6624281B1 | 2003-09-23 | |||
| JP2020002197A | 2020-01-09 |
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
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