| 摘要 |
PROBLEM TO BE SOLVED: To provide a rubber composition for air spring, having both of heat resistance and adhesiveness by solving antinomic problems of the adhesiveness with a reinforcing cord and the heat resistance in the rubber composition containing chloroprene rubber.SOLUTION: A rubber composition 1 for air spring, containing a chloroprene rubber or a blend of the chloroprene rubber with a diene rubber as a main component, and obtained by integrating the rubber component with a reinforcing cord 2 by adhesion is regulated so that a sulfur-modified chloroprene rubber may be used as the chloroprene rubber, the mass ratio (sulfur-modified chloroprene rubber/diene rubber) of the sulfur-modified chloroprene rubber to the diene rubber may be from 60/50 to 100/0, magnesium oxide as a vulcanization accelerator and zinc flower may be contained, and a thiuram-based vulcanization accelerator of 1.5-10 pts.mass may be contained to 100 pts.mass of the rubber component. |
