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发明名称
Process for preparing a sulphonated sat from a petroleum asphalt fraction
摘要
申请公布号
IN178067(B)
申请公布日期
1997.03.08
申请号
IN1023MA1990
申请日期
1990.12.17
申请人
ENIRICERCHE S.P.A. & SNAMPROGETTI S.P.A.
发明人
PREVEDELLO ALDO;PLATONE EDOARDO;DONATI ELIO
分类号
(IPC1-7):C07C139/00
主分类号
(IPC1-7):C07C139/00
代理机构
代理人
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