| 发明名称 | Porous gels based on aromatic polyurea | ||
| 摘要 | The invention relates to a porous gel comprising the following components, in reacted form: (a1) at least one polyfunctional isocyanate,(a2) at least one polyfunctional aromatic amine and(a3) at least one polyalkylenepolyamine.;The invention further relates to a process for preparing porous gels, to the porous gels thus obtainable and to the use of the porous gels as an insulating material and in vacuum insulation panels. | ||
| 申请公布号 | US9206281(B2) | 申请公布日期 | 2015.12.08 |
| 申请号 | US201013381231 | 申请日期 | 2010.06.24 |
| 申请人 | BASF SE | 发明人 | Fricke Marc;Schaedler Volker |
| 分类号 | C08G18/32;C08G18/10;C08G18/12;C08G18/64;C08G18/65;C08J9/28;C08G101/00 | 主分类号 | C08G18/32 |
| 代理机构 | Oblon, McClelland, Maier & Neustadt, L.L.P. | 代理人 | Oblon, McClelland, Maier & Neustadt, L.L.P. |
| 主权项 | 1. A porous gel comprising, in reacted form: (a1) 30 to 90% by weight of a polyfunctional isocyanate, (a2) 9.99 to 66% by weight of at least one polyfunctional aromatic amine selected from the group consisting of 4,4′-diaminodiphenylmethane, 2,4′-diaminodiphenylmethane, 2,2′-diaminodiphenylmethane and oligomeric diaminodiphenylmethane, and (a3) 0.01 to 4% by weight of a polyalkylenepolyamine, based on the total weight of (a1), (a2) and (a3), wherein the polyalkylenepolyamine is an aliphatic amine which comprises at least three reactive amino groups. | ||
| 地址 | Ludwigshafen DE | ||