| 摘要 |
An acrylic rubber composition containing an acrylic ester polymer having a weight-average molecular weight of at least 8,000,000 as a rubber component. This acrylic rubber composition which is free from the disadvantages associated with conventional acrylic rubber can be obtained economically by avoiding the use of expensive raw materials and complicated and therefore costly steps. The acrylic rubber composition shows improvements in the properties inherently possessed by acrylic rubber, i.e., heat resistance, oil resistance, weather resistance, and ozone resistance; exhibits excellent roll processability, gasoline resistance, gas hole resistance, and tensile strength/extensibility balance; and in addition, has high mechanical strength and excellent compression set resistance.
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