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 Chemical Corp
Hitachi Ltd
Original Assignee
Hitachi Ltd
Mitsubishi Kasei Corp
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
Priority to CA000336458ApriorityCriticalpatent/CA1158078A/en
Application filed by Hitachi Ltd, Mitsubishi Kasei CorpfiledCriticalHitachi Ltd
Priority to JP12357180Aprioritypatent/JPS5749686A/ja
Priority to GB8032437Aprioritypatent/GB2065695B/en
Priority to US06/195,860prioritypatent/US4495083A/en
Priority to DE3038372Aprioritypatent/DE3038372C2/de
Priority to CH761080Aprioritypatent/CH645917A5/de
Publication of JPS5749686ApublicationCriticalpatent/JPS5749686A/ja
Publication of JPH0223595B2publicationCriticalpatent/JPH0223595B2/ja