发明名称 METAL ACETYLACETONATES AS TRANSESTERIFICATION CATALYSTS
摘要 The present invention relates to a process for preparing oligocarbonate polyols having a number average molecular weight of 500 to 5000 g/mol by reacting organic carbonates and aliphatic polyols in the presence of a metal acetylacetonate catalyst based on a metal which has an atomic number in the PTE of 39, 57, 5 9 to 69 or 71. The present invention also relates to the oligocarbonate polyols obtained by this process.
申请公布号 CA2517554(A1) 申请公布日期 2006.03.04
申请号 CA20052517554 申请日期 2005.08.30
申请人 BAYER MATERIALSCIENCE AG 发明人 HOFACKER, STEFFEN
分类号 C08G64/30;C08F4/72;C08G71/04 主分类号 C08G64/30
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