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AssigneeNone recorded
InventorsYoung Jim Kim, Min An Kim, Bong Young Sohn
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A tire steel cord which is produced by coating the surface of a brass-plated steel cord with a compound selected from the group consisting of 2-amino-4,6-dimethoxy pyrimidine, 3,5-dimethoxybenzoic acid and m-anisic acid, is disclosed. The tire steel cord has excellent initial and aged adhesion to rubber, improved rubber coverage and controlled oxidation rate on its surface.
A tire steel cord which is produced by coating the surface of a brass-plated steel cord with a compound selected from the group consisting of 2-amino-4,6-dimethoxy pyrimidine, 3,5-dimethoxybenzoic acid and m-anisic acid.
Dependencies are inferred from the claim text.
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Reinforcements or ply arrangement of pneumatic tyres: reinforcements made of metallic elements, e.g. cords, yarns, filaments or fibres made from metal
Tyres characterised by the chemical composition or the physical arrangement or mixture
Reinforcing cords for rubber or plastic articles: the wires being characterised by an anti-corrosive or adhesion promoting coating
Characterised by a coating: comprising metals
Term end not estimated
Priority Korean Patent Application No. 2002-19506 filed Apr. 10, 2002 is incorporated herein in its entirety by reference.
1. Field of the Invention
The present invention relates to a tire steel cord which is produced by coating the surface of a brass-plated steel cord with a coating compound capable of improving the adhesion between the brass-plated steel cord and rubber and the corrosion resistance of the tire steel cord. The tire steel cord has excellent initial and aged adhesion to rubber and corrosion resistance.
Steel cords (2+2×0.25) which had been plated with brass consisting of 63.5% by weight of Cu and 36.5% by weight of Zn were dipped into solutions of 2-amino-4,6-dimethoxy pyrimidine in methanol at various concentrations (0.1 mol %, 0.5 mol %, 1 mol %, 10 mol % and 40 mol %), respectively, to coat the surface of the brass-plated steel cords. The coated brass-plated steel cords were dried in atmosphere and then stored in a desiccator before the adhesion test.
Steel cords (2+2×0.25) which had been plated with brass consisting of 63.5% by weight of Cu and 36.5% by weight of Zn were dipped into solutions of 3,5-dimethoxy benzoic acid in methanol at various concentrations (0.1 mol %, 0.5 mol %, 1 mol %, 10 mol % and 40 mol %), respectively, to coat the surface of the brass-plated steel cords. The coated brass-plated steel cords were dried in atmosphere and then stored in a desiccator beforethe adhesion test.
Steel cords (2+2×0.25) which had been plated with brass consisting of 63.5% by weight of Cu and 36.5% by weight of Zn were dipped into solutions of m-anisic acid in methanol at various concentrations (0.1 mol %, 0.5 mol %, 1 mol %, 10 mol % and 40 mol %), respectively, to coat the surface of the brass-plated steel cords. The coated brass-plated steel cords were dried in atmosphere and then stored in a desiccator before the adhesion test.