Title:
RENEWABLE POLYAMIDE MULTIFILAMENT FIBER FOR TIRE CORD AND TIRE CORD COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2023/055201
Kind Code:
A1
Abstract:
The present invention relates to polyamide multifilament fiber for a tire cord and a tire cord comprising same, the polyamide multifilament fiber comprising: a bio-based polyamide; and a copper compound which is added so that the concentration of copper is 30-300 ppm with respect to the polyamide, wherein the sulfuric-acid relative viscosity of yarn is 2.5-5, the yarn strength is 8 g/d or more, and the yarn orientation is 50x10-3 or more. According to the present invention, polyamide multifilament fiber for a tire cord, a tire cord, and a tire can be obtained, the polyamide multifilament fiber being eco-friendly by using a bio-based material, and having excellent strength and shape stability.
Inventors:
CHOI JAE SHIN (KR)
AN BYUNG JUN (KR)
LEE KYOUNGHA (KR)
KIM CHEOL (KR)
PARK JIN KYUNG (KR)
AN BYUNG JUN (KR)
LEE KYOUNGHA (KR)
KIM CHEOL (KR)
PARK JIN KYUNG (KR)
Application Number:
PCT/KR2022/014828
Publication Date:
April 06, 2023
Filing Date:
September 30, 2022
Export Citation:
Assignee:
HYOSUNG ADVANCED MAT CORP (KR)
International Classes:
D02G3/48; B60C9/00; D01D5/088; D01D5/096; D01D5/098; D01F1/07; D01F8/12; D02G3/04; D02G3/44
Domestic Patent References:
| WO2021088250A1 | 2021-05-14 |
Foreign References:
| JP2013064217A | 2013-04-11 | |||
| KR102265748B1 | 2021-06-16 | |||
| KR20160087894A | 2016-07-22 | |||
| KR20100021790A | 2010-02-26 |
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
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