申请人:Bando Chemical Industries, Ltd.
公开号:EP0750010A1
公开(公告)日:1996-12-27
A power transmission belt comprising rubber parts, at least one of which comprises a rubber composition containing a thiourea compound represented by the general formula (I):
wherein each of R1, R2, R3 and R4 is independently hydrogen atom or a hydrocarbon group having 1 to 12 carbon atoms, and at least three of said R1, R2, R3 and R4 are hydrocarbon groups having 1 to 12 carbon atoms in an amount of 0.1 to 2.5 parts by weight based upon 100 parts by weight of sulfur-modified chloroprene rubber. The power transmission belt of the present invention inhibits the generation of strange sound during working of the belt and shows long span of belt life.
一种动力传动带,包括橡胶部件,其中至少一个部件包括含有通式(I)代表的硫脲化合物的橡胶组合物:
其中 R1、R2、R3 和 R4 各自独立地为氢原子或具有 1 至 12 个碳原子的烃基,且上述 R1、R2、R3 和 R4 中至少有三个为具有 1 至 12 个碳原子的烃基,其用量为 0.1 至 2.5 份(以 100 份硫磺改性氯丁橡胶的重量计)。本发明的动力传动皮带可抑制皮带工作时产生的怪声,皮带寿命长。