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发明名称
POLYIMIDES PREPARED FROM SUBSTITUTED QUINOXALINES
摘要
申请公布号
US3630994(A)
申请公布日期
1971.12.28
申请号
USD3630994
申请日期
1969.12.29
申请人
ASHLAND OIL & REFINING CO.
发明人
BILLY M. CULBERTSON
分类号
C08G73/10;(IPC1-7):C08G20/32
主分类号
C08G73/10
代理机构
代理人
主权项
地址
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