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US 12,252,816 B2Granted
Tire cord, manufacturing method thereof and tire comprising same
AssigneeKolon Industries, Inc.
InventorsSung Gyu Lee, Ok Hwa Jeon, Min-ho Lee
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Abstract
The present invention relates to a tire cord having excellent durability while being thin in thickness, a manufacturing method thereof and a tire comprising the same.
Claims14
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.
4 more elements
A method for manufacturing a tire cord, comprising the steps of:
- preparing 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;
- forming an adhesive layer on the fiber substrate;
- and
- applying a rubber coating solution onto the adhesive layer and performing a heat treatment to form a rubber coating 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.
4 more elements
Dependencies are inferred from the claim text.