| 摘要 |
PROBLEM TO BE SOLVED: To provide a tire that includes sidewalls which comprise a new vulcanized rubber composition consisting mainly of at least one elastomer and can solve defects caused by harmful phenomena such as an ozone action. SOLUTION: This tire including sidewalls which comprise a vulcanized rubber composition based on at least one elastomer, the rubber composition comprising, in a quantity comprised between 0.5 phr and 10 phr (weight parts per hundred parts of rubber), at least one polymer which comprises an oxy group defined by the formula -O- and, linked to the one side of the oxy group, at least one polyoxyalkylene block according to the formula: (CnH2nO)x, [(n) is an integer number that is either equal to 2 or 3; (x) is an integer or decimal number that is either equal to 2 or 15 or comprised therebetween]. At least the block is linked to an hydrogen atom which is located at the chain end of at least the polymer, in such a manner that the hydrogen atom forms an alcohol function with the terminal oxygen atom of at least the block. At least the polymer comprises, linked to the other side of the oxy group, an aliphatic part which belongs to the group consisting of a blend of aliphatic alkyl chains whose number of carbon atoms is in average either substantially equal to 10 or 14, or comprised therebetween, and an aliphatic chain which comprises an alkyl chain whose number of carbon atoms is equal to 13. |
