| abstract |
The invention relates to a porous gel comprising the following components, in reacted form:n (a1) at least one polyfunctional isocyanate, (a2) at least one polyfunctional aromatic amine and (a3) at least one polyalkylenepolyamine. nn 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. |