| 摘要 |
In a process for the recovery of an atactic polymer which comprises heating liquid propylene containing the dissolved atactic polymer at a gauge pressure of 13 to 40 kg/cm2 in a vaporizer to vaporize the propylene, and separating the atactic polymer from the vaporized propylene thereby recovering the polymer in a molten state, the improvement comprising maintaining the vaporization temperature of propylene at 45 DEG C. to 90 DEG C. and the temperature of a heating medium for the vaporizer at 60 DEG C. to 150 DEG C. According to this process, a long run can be used in the recovery of the atactic polymer.
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