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发明名称
Ytterbium(III)acetylacetonate as catalyst for the preparation of aliphatic oligocarbonate-polyols
摘要
申请公布号
EP1477508(B1)
申请公布日期
2008.04.23
申请号
EP20040010355
申请日期
2004.04.30
申请人
BAYER MATERIALSCIENCE AG
发明人
HOFACKER, STEFFEN DR.
分类号
C08G64/30;B01J31/26;C07F5/00;C08G18/10;C08G18/44;C08G63/64
主分类号
C08G64/30
代理机构
代理人
主权项
地址
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