发明名称 |
Polyether polyols with long chain and high content of primary hydroxyl groups, process of their preparation and use |
摘要 |
<p>The invention relates to long-chain polyether polyols having a content of primary OH groups of 40 to 95 mol-% and a total content of oxyethylene units of >25 wt. % as well as a process for their production by DMC-catalysed polyaddition of an ethylene oxide (EO)/propylene oxide (PO) mixture in the weight ratio of 40:60 to 95:5 as an end block to starter compounds having active hydrogen atoms.</p> |
申请公布号 |
CZ20013761(A3) |
申请公布日期 |
2002.04.17 |
申请号 |
CZ20010003761 |
申请日期 |
2000.04.11 |
申请人 |
BAYER AKTIENGESELLSCHAFT |
发明人 |
HOFMANN JORG;DIETRICH MANFRED;GUPTA PRAMOD |
分类号 |
C08G18/48;C08G65/10;C08G65/26;(IPC1-7):C08G65/10 |
主分类号 |
C08G18/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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