| 摘要 |
<p>A process by which high-purity tetracyclododecene for use as a material for cycloolefin (co)polymers having excellent optical properties, high transparency, heat resistance, and oil-absorbing properties can be continuously and stably produced over long even from inexpensive crude DCPD. In the process for the continuous production of a tetracyclododecene compound, it is possible to use crude DCPD, which is low-purity dicyclopentadiene, as a starting material. The feed materials to be introduced into a reactor are regulated so that the amount of any one, any two, or all of isoprene, piperylene, a 1-methyl-2-norbornene compound represented by the general formula (4) relative to the total amount of the cyclopentadiene and dicyclopentadiene is within a given range. The tetracyclododecene compound having a high purity can be stably produced over long.</p> |
