Manufacturing method of a tire having a sidewall portion having excellent ozone aging resistance

摘要

The present invention relates to a method of manufacturing a tire having a sidewall portion having excellent ozone aging resistance, and more particularly, to a method of manufacturing a tire having a sidewall portion of a tire by dividing a sidewall portion of the tire into an inner layer and an outer layer, Or extruded into an outer layer to produce a sidewall portion. The present invention relates to a method for manufacturing a tire having excellent resistance to ozone aging in a sidewall portion.;Conventional methods for improving the ozone aging resistance of tire sidewalls have been problematic in that a large amount of an antioxidant is used or an excessively expensive EPDM rubber is used to deteriorate the appearance of a tire due to an excessive amount of antioxidant or a manufacturing cost is high .;According to the method of the present invention, ozone aging resistance is improved not only in the entire side wall portion of the tire including the bead portion of the tire and the rim cushion portion, but also the manufacturing cost of the tire can be reduced.