Title:
POLYESTER TIRE CORD HAVING EXCELLENT HEAT RESISTANCE, AND TIRE COMPRISING SAME
Document Type and Number:
WIPO Patent Application WO/2021/045418
Kind Code:
A1
Abstract:
The present invention relates to a polyester tire cord, which is made of a polyester fiber, has at least 1.2 g/d of 5% LASE measured by ASTM D885 at 80°C, has at least 1.0 g/d of 5% LASE measured by ASTM D885 at 120°C, and has at least 65% toughness retention at 80°C and 120°C. The tire cord of the present invention has a modulus equivalent to that of rayon even in a high-temperature environment of at least 120°C, and has excellent dimensional stability and heat resistance, and thus can be advantageously applied to a high-performance tire.
Inventors:
JOO SI-HWAN (KR)
KIM CHEOL (KR)
PARK JIN-KYEONG (KR)
KIM CHEOL (KR)
PARK JIN-KYEONG (KR)
Application Number:
PCT/KR2020/011203
Publication Date:
March 11, 2021
Filing Date:
August 21, 2020
Export Citation:
Assignee:
HYOSUNG ADVANCED MAT CORP (KR)
International Classes:
D02G3/48; B60C9/00; B60C9/04; D01F6/62; D02G3/44
Foreign References:
| KR20170082891A | 2017-07-17 | |||
| KR101979352B1 | 2019-05-17 | |||
| KR20110078773A | 2011-07-07 | |||
| KR0140228B1 | 1998-07-01 | |||
| KR101838499B1 | 2018-03-15 | |||
| US4101525A | 1978-07-18 | |||
| US5067538A | 1991-11-26 | |||
| US5472781A | 1995-12-05 | |||
| EP0423213B1 | 1992-05-27 | |||
| KR20140089155A | 2014-07-14 | |||
| KR20180079533A | 2018-07-11 | |||
| KR20050066055A | 2005-06-30 | |||
| KR20060078408A | 2006-07-05 | |||
| KR20090132115A | 2009-12-30 |
Attorney, Agent or Firm:
KIM, Hak Je et al. (KR)
Download PDF: