发明名称 |
PROCESS FOR PRODUCING RIGID POLYURETHANE FOAMS |
摘要 |
The invention relates to a method for producing polyurethane rigid foams by reacting a) polyisocyanates with b) compounds having at least two hydrogen atoms that are reactive with isocyanate groups in the presence of c) expanding agents, characterized in that the compounds having at least two hydrogen atoms that are reactive with isocyanate groups contain b) at least one aromatic polyester alcohol bi), at least one polyester alcohol bii) having a functionality of 4 to 8 and a hydroxyl number ranging between 300 and 600 mgKOH/gh.
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申请公布号 |
CA2797528(A1) |
申请公布日期 |
2011.10.27 |
申请号 |
CA20112797528 |
申请日期 |
2011.04.19 |
申请人 |
BASF SE |
发明人 |
KOESTERS, MICHAEL;KAMPF, GUNNAR;FABISIAK, ROLAND;JACOBMEIER, OLAF |
分类号 |
C08G18/40;C08G18/42;C08G18/48 |
主分类号 |
C08G18/40 |
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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