A method for producing a tire sidewall rubber member according to an embodiment comprises: a first kneading step of preparing a first kneaded product by kneading a diene rubber, carbon black, a compound represented by formula (I) (wherein R1 and R2 represent a hydrogen atom, an alkyl group, an alkenyl group or an alkynyl group, and M+ is Na+, K+ or Li+), and zinc oxide; and a second kneading step of adding wax and/or stearic acid to the first kneaded product, followed by kneading. Thus, low heat generation properties are improved while suppressing the deterioration of tear resistance.
根据一个实施例,生产轮胎侧壁橡胶件的方法包括:第一捏合步骤,通过捏合二烯橡胶、
炭黑、式(I)代表的化合物(其中 R1 和 R2 代表氢原子、烷基、烯基或炔基,M+ 是 Na+、K+ 或 Li+)和
氧化锌制备第一捏合产品;以及第二捏合步骤,向第一捏合产品中添加蜡和/或
硬脂酸,然后进行捏合。因此,在抑制抗撕裂性恶化的同时,还改善了低发热性能。