| abstract |
【Task】 The present invention relates to a method for maintaining the black appearance of a tire sidewall. [Solution] The method includes the step of producing a tire using a sidewall rubber compound, the sidewall rubber compound comprising 100 parts by weight of at least one diene rubber; 10 to 70 parts per 100 parts by weight of diene rubber. Parts by weight (phr) of rubber process oil, wherein the rubber process oil is aromatic, paraffinic, naphthenic, vegetable oil (other than castor oil), and low PCA oils such as MES, TDAE, SRAE and heavy naphthenic Selected from the group consisting of oils]; and 0.5 to 3 parts by weight (phr) of at least one of ricinoleic acid and 12-hydroxystearic acid per 100 parts by weight of diene rubber Contains triglycerides derived from percent fatty acids. [Selection figure] None |