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Priority claimed from JP62310599Aexternal-prioritypatent/JPH01152127A/en
Priority claimed from JP62310598Aexternal-prioritypatent/JP2667415B2/en
Priority claimed from JP62310597Aexternal-prioritypatent/JPH01152125A/en
Application filed by Mitsui Petrochemical IndfiledCriticalMitsui Petrochemical Ind
Priority claimed from EP88311591Aexternal-prioritypatent/EP0320238B1/en
Application grantedgrantedCritical
Publication of ATE64928T1publicationCriticalpatent/ATE64928T1/en