发明名称 |
Rigid foam compositions and methods employing alkyl alkanoates as a blowing agent |
摘要 |
A method for producing a rigid, closed-cell polyurethane foam having a free-rise density of from about 1.3 lbs/ft.3 to about 4 lbs/ft.3 and exhibiting a shrinkage of less than 10%, comprises mixing together an isocyanate, at least one alkyl alkanoate blowing agent and at least one polyol having a hydroxyl number of from about 150 to about 800 and being selected from the group consisting of polyalkoxylated amines, polyalkoxylated ethers, and polyester polyols, to form a reaction mixture that is curable to produce such foam.
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申请公布号 |
US2005131094(A1) |
申请公布日期 |
2005.06.16 |
申请号 |
US20050499375 |
申请日期 |
2005.02.11 |
申请人 |
KALINOWSKI TIMOTHY T.;KESKE DAVID G.;MATIMBA VICTOR;MODRAY DAVID L.;SCHULTE MARK |
发明人 |
KALINOWSKI TIMOTHY T.;KESKE DAVID G.;MATIMBA VICTOR;MODRAY DAVID L.;SCHULTE MARK |
分类号 |
C08G18/32;C08G18/00;C08G18/40;C08G18/48;C08G101/00;C08J9/14;(IPC1-7):C08G18/00 |
主分类号 |
C08G18/32 |
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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