发明名称 |
LOW DENSITY RIGID REINFORCED POLYURETHANES AND A PROCESS FOR THEIR PRODUCTION |
摘要 |
Fiber-reinforced polyurethanes having densities no greater than 0.9 g/cc which are suitable for use as automotive components are produced from a polyurethane-forming reaction mixture in which carbon dioxide is dissolved in one or both of the reaction components. The amount of dissolved carbon dioxide is from 0.2 to 2.0 g/l. The isocyanate-reactive component is a polyol having a functionality of from 3 to 8 and a hydroxyl number of at least 600. Any fibrous material may be used but glass fiber, particularly glass fibers having lengths from 12.5 to 100 mm are particularly preferred.
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申请公布号 |
CA2599099(A1) |
申请公布日期 |
2008.02.29 |
申请号 |
CA20072599099 |
申请日期 |
2007.08.28 |
申请人 |
BAYER MATERIALSCIENCE LLC |
发明人 |
YOUNES, USAMA E. |
分类号 |
C08L75/08;C08G18/48;C08G18/72;C08J5/08;C08K7/14 |
主分类号 |
C08L75/08 |
代理机构 |
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地址 |
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