Title:
BIODEGRADABLE SPANDEX AND MANUFACTURING METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2023/075187
Kind Code:
A1
Abstract:
The present invention relates to biodegradable spandex and a manufacturing method therefor. The biodegradable spandex of the present invention comprises polycaprolactone diol in a polymer backbone, and thus can be effectively biodegraded in a short time while also having excellent physical properties. While it is known that the biodegradation period of conventional general spandex takes at least 20 years, the biodegradable spandex of the present invention may provide a significant advantage in that the biodegradation period is dramatically shortened to 2 to 3 years as the biodegradable spandex has a fast biodegradation rate of 0.1%/day to 0.2%/day when measured by the carbon dioxide emission measurement method specified in ISO 14855.
Inventors:
GU GYOSEONG (KR)
KANG YEON SOO (KR)
KIM TAE HEON (KR)
LEE JIA (KR)
KANG YEON SOO (KR)
KIM TAE HEON (KR)
LEE JIA (KR)
Application Number:
PCT/KR2022/014831
Publication Date:
May 04, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
HYOSUNG TNC CORP (KR)
International Classes:
D01F1/10; D01D5/04; D01D5/06; D01D5/08; D01F6/70; D02G3/32
Foreign References:
| CN109338504A | 2019-02-15 | |||
| JP2013127142A | 2013-06-27 | |||
| JP2012062370A | 2012-03-29 | |||
| JP2019127497A | 2019-08-01 | |||
| CN102534856A | 2012-07-04 |
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
Download PDF: