A rubber composition containing a specifically limited imidazole compound or imidazoline compound, or benzimidazole or its specifically limited derivative has a large tan δ at high temperature range, and a tire having a tread using such rubber composition is prevented from being lowered in the value of tan δ due to the temperature rising during the running and has an improved grip performance during the high speed running. The use of Brønsted acid in combination with the imidazole, imidazoline or benzimidazole can obviate the drawback of poor scorch resistance of a rubber composition containing the imidazole, imidazoline or benzimidazole alone, and the resulting rubber composition has a very large tan δ at a high temperature range, and a tire having a tread using the rubber composition has a remarkably improved grip performance during the high speed running.
含有特限咪唑化合物或咪唑啉化合物或苯并咪唑或其特限衍生物的橡胶组合物在高温范围内具有较大的 tan δ,使用这种橡胶组合物的轮胎胎面不会因行驶过程中温度升高而降低 tan δ 值,在高速行驶过程中具有更好的抓地性能。 将布氏酸与咪唑、咪唑啉或苯并咪唑结合使用,可避免单独含有咪唑、咪唑啉或苯并咪唑的橡胶组合物抗焦烧性差的缺点,由此产生的橡胶组合物在高温范围内具有非常大的 tan δ,使用这种橡胶组合物的轮胎胎面在高速行驶过程中具有显著改善的抓地性能。
Recording sheets containing amino acids, hydroxy acids, and polycarboxyl compounds
申请人:XEROX CORPORATION
公开号:EP0667246A1
公开(公告)日:1995-08-16
A recording sheet which comprises a paper substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, monomeric polycarboxyl compounds, and mixtures thereof. Another embodiment of the present invention is directed to a recording sheet which comprises a substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, and mixtures thereof.