发明名称 |
RIGID POLYURETHANE FOAMS WITH LOW THERMAL CONDUCTIVITY AND A PROCESS FOR THEIR PRODUCTION. |
摘要 |
Rigid closed-cell polyurethane foams with low k-factors are produced by reacting an organic polyisocyanate with an amine-based polyether polyol and a polyester polyol in the presence of a catalyst and a hydrofluorocarbon blowing agent, preferably, HFC-245fa. It is preferred that no water be added to the reaction mixture.
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申请公布号 |
MX2007010442(A) |
申请公布日期 |
2008.10.28 |
申请号 |
MX20070010442 |
申请日期 |
2007.08.27 |
申请人 |
BAYER MATERIALSCIENCE LLC |
发明人 |
STEVEN L. SCHILLING;EDWARD E. BALL;V. MICHAEL MAUTINO |
分类号 |
C08G18/40;C08G18/50;C08J9/14 |
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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