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经营范围
发明名称
Purification of diphenyl phthalates.
摘要
<p>Color properties of crude phenolic esters of aromatic dicarboxylic acids are improved by subjecting the esters to hydrogenation in the presence of hydrogen and a hydrogenation catalyst.</p>
申请公布号
EP0309268(A2)
申请公布日期
1989.03.29
申请号
EP19880308849
申请日期
1988.09.23
申请人
HOECHST CELANESE CORPORATION
发明人
STAUTZENBERGER, LEE A.;KUNKEL, ROBERT W.
分类号
C07C67/48
主分类号
C07C67/48
代理机构
代理人
主权项
地址
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