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
CA763966A
Inventor
Hosoya Tooru
Fujita Isamu
Otoi Kiyoshi
Obata Kazuhiro
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.)
Kanegafuchi Chemical Industry Co Ltd
Original Assignee
Kanegafuchi Chemical Industry Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA763966ApublicationCriticalpatent/CA763966A/en