发明名称 |
Lightweight flexible imide foam and method of producing same. |
摘要 |
<p>Described is a lightweight open-cell flexible foam having a density no greater than about 6 pounds per cubic foot, preferably less than 1.0 pound per cubic foot (pcf) comprising the reaction product of an organic polyisocyanate and a mixture of difunctional acids, acid anhydrides, and difunctional anhydrides in the presence of a tertiary amine triazine catalyst, which reactants during the manufacturing process generate carbon dioxide, wherein the ratio of imide to amide groups in the final product is greater than 1.</p> |
申请公布号 |
EP0407994(A1) |
申请公布日期 |
1991.01.16 |
申请号 |
EP19900113235 |
申请日期 |
1990.07.11 |
申请人 |
MANVILLE CORPORATION |
发明人 |
WERNSING, DAVID G.;FEAGANS, ROYCE M.;NEAR, DANIEL E.;SZNOPEK, JOHN |
分类号 |
C08G18/08;C08G18/18;C08G18/20;C08G18/30;C08G18/34;C08G73/10;C08G101/00;C08J9/02 |
主分类号 |
C08G18/08 |
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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