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
CA868785A
Inventor
Aoki Ryuichi
Ono Yukitomo
Hokari Takao
Nishijima Tohru
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.)
Japan Gas Chemical Co Inc
Mitsubishi Petrochemical Co Ltd
Original Assignee
Japan Gas Chemical Co Inc
Mitsubishi Petrochemical Co Ltd
Publication date
Application grantedgrantedCritical
Publication of CA868785ApublicationCriticalpatent/CA868785A/en