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Patent Searching and Data


Title:
CORD SHEET FOR PNEUMATIC TIRE
Document Type and Number:
WIPO Patent Application WO/2023/153663
Kind Code:
A1
Abstract:
The present invention relates to a cord sheet for a pneumatic tire, wherein the end per inch (EPI) increases and then decreases at least once from the center portion toward the edge direction and the EPI of the outermost portion is designed to be less than the EPI of the center portion and the center edge portion so that the EPI of a rolled material can be uniform. Thus, dent defects of the finished tire can be minimized and uniformity performance is improved, and thus, there is an effect of providing stability during high-speed driving.

Inventors:
KWON O SEOK (KR)
PARK SUNG YEOP (KR)
HAN GUN HO (KR)
Application Number:
PCT/KR2023/000827
Publication Date:
August 17, 2023
Filing Date:
January 18, 2023
Export Citation:
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Assignee:
HYOSUNG ADVANCED MAT CORP (KR)
International Classes:
D03D15/283; B60C9/18; D03D1/00
Foreign References:
KR20000040986A2000-07-15
KR940023685A
KR20190094825A2019-08-14
KR20050094681A2005-09-28
KR20060102980A2006-09-28
Attorney, Agent or Firm:
KIM, Hong Gyun (KR)
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