US 12,252,816 B2
Tire cord, manufacturing method thereof and tire comprising same
Sung Gyu Lee, Seoul (KR); Ok Hwa Jeon, Seoul (KR); and Min-ho Lee, Seoul (KR)
Assigned to KOLON INDUSTRIES, INC., Seoul (KR)
Appl. No. 17/769,769
Filed by KOLON INDUSTRIES, INC., Seoul (KR)
PCT Filed Dec. 21, 2020, PCT No. PCT/KR2020/018740
§ 371(c)(1), (2) Date Apr. 18, 2022,
PCT Pub. No. WO2021/133005, PCT Pub. Date Jul. 1, 2021.
Claims priority of application No. 10-2019-0175655 (KR), filed on Dec. 26, 2019; and application No. 10-2020-0176538 (KR), filed on Dec. 16, 2020.
Prior Publication US 2022/0372672 A1, Nov. 24, 2022
Int. Cl. D02G 3/48 (2006.01); B60C 9/00 (2006.01); D06M 15/693 (2006.01)
CPC D02G 3/48 (2013.01) [B60C 9/0042 (2013.01); D06M 15/693 (2013.01)] 14 Claims
 
1. A tire cord comprising:
a fiber substrate that is woven with a density between warp yarns of 90% or more, and a number of warp yarns per unit length (n/inch) of 58 or more using a warp yarn containing at least one of nylon, rayon, aramid, and polyester including PET;
an adhesive layer formed on the fiber substrate; and
a rubber coating layer formed on the adhesive layer,
wherein the rubber coating layer comprises synthetic rubber or natural rubber,
wherein the warp yarns have fineness of 300 to 630 de, and
wherein the application amount per unit area of the rubber coating layer to the adhesive layer is 75 to 300 g/m2.