| 摘要 |
PROBLEM TO BE SOLVED: To provide a production system for an ethylene-propylene rubber, involving means for proper recovering/recycling of an organic solvent used at polymerization processes. SOLUTION: The production system for an ethylene-propylene rubber comprises the following first to 4th means. The first means is a process of fixing an allowable limit of a different diene ratio according to an allowable level in quality control of the rubber, based on the correlation between the ratio of the different diene contained in the organic solvent to be used, and rubber quality. The second means is a process of analyzing a diene content in the solvent to be used. The third means is a process of calculating the different diene ratio based on the analyzed value obtained from the second means. The 4th means is a process of judgement that the different diene ratio obtained from the third means is in the allowable limit fixed at the first means, or not, and when the different diene ratio is out of the limit, an alarm is emitted. COPYRIGHT: (C)2005,JPO&NCIPI
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