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Priority claimed from JP62131396Aexternal-prioritypatent/JPH0784034B2/en
Priority claimed from JP62131397Aexternal-prioritypatent/JPH0784035B2/en
Priority claimed from JP62157511Aexternal-prioritypatent/JPH0717761B2/en
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP19880304944external-prioritypatent/EP0294150B1/en
Application grantedgrantedCritical
Publication of ATE88733T1publicationCriticalpatent/ATE88733T1/en