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发明名称
PROCESS FOR PREPARING PYROMELLITIC DIANHYDRIDE PROCESS FOR PREPARING PYROMELLITIC DIANHYDRIDE
摘要
申请公布号
EP0215431(A3)
申请公布日期
1988.09.21
申请号
EP19860112478
申请日期
1986.09.09
申请人
MITSUBISHI GAS CHEMICAL COMPANY, INC.
发明人
KOSAKA, TSUNEO;SAKAI, YUKIO
分类号
C07D493/04;C07C51/56;(IPC1-7):C07C63/313
主分类号
C07D493/04
代理机构
代理人
主权项
地址
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