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Priority claimed from JP15320684Aexternal-prioritypatent/JPS6132737A/en
Priority claimed from JP15552084Aexternal-prioritypatent/JPS6135226A/en
Application filed by Idemitsu Petrochemical CofiledCriticalIdemitsu Petrochemical Co
Priority claimed from EP85304982Aexternal-prioritypatent/EP0176177B1/en
Application grantedgrantedCritical
Publication of ATE46476T1publicationCriticalpatent/ATE46476T1/en