发明名称 |
Verfahren zur Herstellung Kohlenwasserstoff-getriebener Polyurethan-Hartschaumstoffe |
摘要 |
The description relates to a process for producing hard urethane and possibly urea and isocyanate-group-containing foams in which a hard polyurethane foam is made by reacting a) an aromatic polyisocyanate with b) a polyol component with an average of at least three hydrogen atoms reactive to isocyanates, containing 1) 30 to 80 wt.% of an aromatic amine-started polyether with a molecular weight of 300 to 800 based on 70 to 100 wt.% 1,2-propylene oxide and 0 to 30 wt.% ethylene oxide, 2) 10 to 40 wt.% of an essentially sucrose-started polyether with a molecular weight of 400 to 1000 based on 70 to 100 wt.% 1,2-propylene oxide and 0 to 30 wt.% ethylene oxide, 3) 5 to 30 wt.% of a propylene glycol-started polyether with a molecular weight from 500 to 1500 based on 70 to 100 wt.% 1,2-propylene oxide and 0 to 30 wt.% ethylene oxide, 4) n and/or i-pentane as the blowing agent, 5) water, 6) possible auxiliaries and additives, where the percentage weights of components 1), 2) and 3) amount to 100.
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申请公布号 |
DE19611367(A1) |
申请公布日期 |
1997.09.25 |
申请号 |
DE19961011367 |
申请日期 |
1996.03.22 |
申请人 |
BAYER AG, 51373 LEVERKUSEN, DE |
发明人 |
DIETRICH, KARL WERNER, DR., 51519 ODENTHAL, DE;EISEN, NORBERT, DR., 50937 KOELN, DE;HEILIG, GERHARD, DR., 51467 BERGISCH GLADBACH, DE |
分类号 |
C08J9/12;C08G18/48;C08G18/50;C08J9/14;(IPC1-7):C08G18/48;C08G18/76;C08L75/02;C08L75/04;C08J9/16 |
主分类号 |
C08J9/12 |
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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