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.)
Mitsubishi Gas Chemical Co Inc
Original Assignee
Mitsubishi Gas Chemical Co Inc
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 Mitsubishi Gas Chemical Co IncfiledCriticalMitsubishi Gas Chemical Co Inc
Priority to JP12840480ApriorityCriticalpatent/JPS5934166B2/ja
Priority to DE8181304253Tprioritypatent/DE3168329D1/de
Priority to EP81304253Aprioritypatent/EP0048173B1/en
Publication of JPS5753434ApublicationCriticalpatent/JPS5753434A/ja
Priority to US06/560,279prioritypatent/US4978778A/en
Publication of JPS5934166B2publicationCriticalpatent/JPS5934166B2/ja