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Title:
POLYESTER TIRE CORD AND RADIAL TIRE USING SAME
Document Type and Number:
WIPO Patent Application WO/2019/088464
Kind Code:
A1
Abstract:
The present invention relates to a radial tire having a cap ply manufactured with a polyethylene terephthalate dip cord. The radial tire comprises: a pair of parallel bead cores; at least one radial carcass ply wound around the bead cores; one or more inclined belt layers layered on the outer circumference of the carcass ply; and one or more cap ply layers layered in the circumferential direction of a tire on the outer circumference of the inclined belt layers, wherein the cap ply comprises a dip cord manufactured using a yarn comprising 90 mol% or more of polyethylene terephthalate, and the dip cord has a shrinkage of 3.0-4.0%, a strength of 2.5-3.0 g/d at an elongation of 5%, a breaking strength of 6.5-7.5 g/d, and a dimensional stability index of 5.8-6.5.

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Inventors:
LEE, Kyoung Ha (#201, City Castle 7Cha 122, Naengcheon-ro, Manan-gu,,Anyang-Si, Gyeonggi-do, 14030, KR)
KIM, Cheol (#501, 21 Jeongjail-ro, Bundang-gu,,Seongnam-Si, Gyeonggi-do, 13616, KR)
PARK, Jin Kyung (#302-1301, 220 Seongbok 2-ro, Suji-gu,,Yongin-Si, Gyeonggi-do, 16807, KR)
Application Number:
KR2018/011693
Publication Date:
May 09, 2019
Filing Date:
October 02, 2018
Export Citation:
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Assignee:
HYOSUNG ADVANCED MATERIALS CORPORATION (119 Mapo-daero, Mapo-Gu, Seoul, 04144, KR)
International Classes:
B60C9/00; C08L67/02; D02G3/48
Foreign References:
KR20150055119A2015-05-21
KR20120072860A2012-07-04
KR20120001939A2012-01-05
KR20080112160A2008-12-24
KR20090104748A2009-10-06
Attorney, Agent or Firm:
KIM, Hong Gyun (#B-309 Mstate, 114 Beobwon-ro,,Songpa-Gu, Seoul, 05854, KR)
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