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.)
Zeon Corp
Original Assignee
Nippon Zeon 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 JP08033092Aexternal-prioritypatent/JP3189364B2/ja
Priority claimed from JP15445492Aexternal-prioritypatent/JP3666884B2/ja
Priority claimed from JP36113092Aexternal-prioritypatent/JP3518553B2/ja
Application filed by Nippon Zeon Co LtdfiledCriticalNippon Zeon Co Ltd
Application grantedgrantedCritical
Publication of DE69330320D1publicationCriticalpatent/DE69330320D1/de
Publication of DE69330320T2publicationCriticalpatent/DE69330320T2/de