申请人:Bridgestone Corporation
公开号:EP1535961A1
公开(公告)日:2005-06-01
The present invention relates to a tire characterized by using as a member, a rubber composition comprising (a) a rubber component comprising at least one selected from a natural rubber and a diene base synthetic rubber, (b) silica having a nitrogen-absorbing specific surface area (N2SA) of 180 to 270 m2/g and 0.1 to 10.0 mass parts of (c) a partial ester compound of maleic anhydride and a (poly)oxypropylene derivative per 100 mass parts of the rubber component described above. Further, the present invention relates to a tire characterized by using as a tread rubber, a rubber composition comprising (A) a rubber component comprising a conjugate diene base rubber, (B) a filler comprising 10 mass % or more of a white filler based on the whole fillers and (C) a partial ester compound of maleic anhydride and a (poly)oxypropylene derivative.
According to the present invention, capable of being obtained is a tire in which an abrasion resistance and a low heat build-up property are enhanced while improving a processability thereof without causing a reduction in the physical properties of a rubber composition and a problem on a working environment or a tire which is excellent in both of a driving stability and a wet gripping property.
本发明涉及一种轮胎,其特征在于使用一种橡胶组合物作为构件,该橡胶组合物包括(a)一种橡胶成分,该橡胶成分至少包括一种选自天然橡胶和一种二烯基合成橡胶的橡胶成分;(b)二氧化硅,该二氧化硅的吸氮比表面积(N2SA)为 180 至 270 m2/g;以及每 100 质量份的上述橡胶成分中含有 0.1 至 10.0 质量份的(c)马来酸酐和(聚)氧丙烯衍生物的部分酯类化合物。此外,本发明还涉及一种轮胎,其特征在于使用一种橡胶组合物作为胎面橡胶,该橡胶组合物包括:(A) 由共轭二烯基础橡胶组成的橡胶组分;(B) 一种填料,该填料包括基于整个填料的 10 质量%或更多的白色填料;(C) 马来酸酐和(聚)氧丙烯衍生物的部分酯类化合物。
根据本发明,可以获得一种轮胎,其耐磨性和低热积聚性能得到增强,同时提高了加工性能,但不会导致橡胶组合物的物理性能降低,也不会对工作环境造成影响,或者是一种在行驶稳定性和湿抓握性能方面都非常出色的轮胎。