Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Seika Chemicals Co Ltd
Original Assignee
Seitetsu Kagaku Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP9598682Aexternal-prioritypatent/JPS58212799A/en
Priority claimed from JP57095984Aexternal-prioritypatent/JPS58212795A/en
Priority claimed from JP57095988Aexternal-prioritypatent/JPS58212797A/en
Priority claimed from JP57095987Aexternal-prioritypatent/JPS58212796A/en
Application filed by Seitetsu Kagaku Co LtdfiledCriticalSeitetsu Kagaku Co Ltd
Priority claimed from EP83303192Aexternal-prioritypatent/EP0096547B1/en
Application grantedgrantedCritical
Publication of DE3376020D1publicationCriticalpatent/DE3376020D1/en