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.)
Asahi Kasei Corp
Original Assignee
Asahi Kasei Kogyo KK
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
Application filed by Asahi Kasei Kogyo KKfiledCriticalAsahi Kasei Kogyo KK
Priority to CA000455876ApriorityCriticalpatent/CA1206903A/fr
Application grantedgrantedCritical
Publication of CA1206903ApublicationCriticalpatent/CA1206903A/fr