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Priority claimed from JP14158587Aexternal-prioritypatent/JPH0791338B2/ja
Priority claimed from JP14158487Aexternal-prioritypatent/JPH07103181B2/ja
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP88305129Aexternal-prioritypatent/EP0295026B1/de
Application grantedgrantedCritical
Publication of ATE89291T1publicationCriticalpatent/ATE89291T1/de