METHOD FOR THE PRODUCTION OF POLYETHER POLYOLS COM

专利名称：METHOD FOR THE PRODUCTION OF

POLYETHER POLYOLS COMPRISINGTERMINAL PRIMARY HYDROXYL GROUPS

发明人：NEFZGER, HARTMUT,BAUER,

ERIKA,HOFMANN, JOERG,LORENZ,KLAUS,HAHN, NORBERT

申请号：EP10729815.0申请日：20100630公开号：EP24496A1公开日：20120509

摘要：The present invention relates to a process for producing polyether polyolshaving primary hydroxyl end groups, comprising the steps of reacting a startercompound containing active hydrogen atoms with an epoxide under double metalcyanide catalysis, reacting the resulting product with a cyclic carboxylic anhydride andreacting this resulting product with ethylene oxide in the presence of a catalystcontaining at least one nitrogen atom per molecule, excluding non-cyclic, identicallysubstituted tertiary amines. The invention further relates to polyether polyols obtainableby this process, compositions containing said polyols and polyurethane polymers basedon said polyols.

申请人：BAYER MATERIALSCIENCE AG

地址：51368 Leverkusen DE

国籍：DE

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