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Priority claimed from JP63191916Aexternal-prioritypatent/JPH0791337B2/en
Priority claimed from JP20637388Aexternal-prioritypatent/JPH0778101B2/en
Application filed by Idemitsu Kosan CofiledCriticalIdemitsu Kosan Co
Priority claimed from EP89113395Aexternal-prioritypatent/EP0356692B1/en
Application grantedgrantedCritical
Publication of ATE97920T1publicationCriticalpatent/ATE97920T1/en