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.)
Ohara Inc
Original Assignee
Ohara 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 Ohara IncfiledCriticalOhara Inc
Priority to JP21297983ApriorityCriticalpatent/JPS59166341A/ja
Publication of JPS59166341ApublicationCriticalpatent/JPS59166341A/ja
Publication of JPS6317017B2publicationCriticalpatent/JPS6317017B2/ja
B22C1/00—Compositions of refractory mould or core materials; Grain structures thereof; Chemical or physical features in the formation or manufacture of moulds