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.)
Expired
Application number
CA859546A
Inventor
Ito Mikio
Hoshino Shohei
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 Dow Ltd
Original Assignee
Asahi Dow Ltd
Publication date
Application grantedgrantedCritical
Publication of CA859546ApublicationCriticalpatent/CA859546A/en