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.)
Kureha Corp
Original Assignee
Kureha Corp
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 JP50094690Aexternal-prioritypatent/JPS5219614A/ja
Priority claimed from JP923976Aexternal-prioritypatent/JPS5293708A/ja
Application filed by Kureha CorpfiledCriticalKureha Corp
Publication of FR2320283A1publicationCriticalpatent/FR2320283A1/fr
Application grantedgrantedCritical
Publication of FR2320283B1publicationCriticalpatent/FR2320283B1/fr