发明名称 |
processo para preparar uma espuma de poliuretano rígida e espuma rígida |
摘要 |
<p>Polyether polyols initiated with ortho-cyclohexanediamines such as 1,2-diaminocyclohexane are used in rigid polyurethane foam formulations in conjunction with an aromatic amine-initiated polyol, and/or with low levels of tertiary amine catalysts. The polyol mixtures are useful in making rigid polyurethane foams, especially foams for pour-in-place applications, where they give a good combination of low k-factor and short demold times.</p> |
申请公布号 |
BRPI0911720(A2) |
申请公布日期 |
2015.10.13 |
申请号 |
BR2009PI11720 |
申请日期 |
2009.07.29 |
申请人 |
DOW GLOBAL TECHNOLOGIES LLC |
发明人 |
ADRIAN J. BIRCH;HANS KRAMER;TIMOTHY A. MORLEY |
分类号 |
C08G18/18;C08G18/36;C08G18/40;C08G18/48;C08G18/50;C08G65/26 |
主分类号 |
C08G18/18 |
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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